bluuebunny/crossref_metadata_2025 huggingface dataset:
A Computer-Based Voltage Control Experiment for Advanced Power System Operation Teaching
Authors: Chung T. S.
Published: February 2013

This paper presents the development of a computer-based electrical power system control experiment for advanced undergraduate students in Electrical Power Engineering. Using the experiment, the student is trained in understanding power system voltage performance in operation and the control measures in abnormal conditions. The computer-based experiment method could enhance student appreciation of concepts and offer a cost-effective solution to the problem of expensive conventional hardware experimental setups. Simulation examples with test power systems and discussions of users' feedback are presented to show the effectiveness of the method.
A Virtual Interactive Teaching Environment Using XML and Augmented Reality
Authors: White Martin , Jay Emmanuel , Liarokapis Fotis , Kostakis Costas , Lister Paul
Published: February 2013

We present a new approach to the teaching of top-down design of VHDL using a novel virtual interactive teaching environment. This environment enables students to learn more effectively using virtual multimedia content, while exploiting XML, and augmented reality. This environment can be adapted for teaching of other subject areas.
Design of a Microcontroller-Based Passive Standby Uninterruptible Power Supply
Authors: Jahmeerbacus M. I. , Soyjaudah K. M. S.
Published: February 2013

This paper describes the design of a microcontroller-based passive standby Uninterruptible Power Supply (UPS), where the student applies a top-down systems approach to produce a working system. Such a project involves hardware-software co-design for realizing the relatively large number of detection, protection and control functions within the UPS.
Generalised Analysis of Gain-Bandwidth Independence in Feedback Amplifiers
Authors: Wilson B.
Published: February 2013

Two closely related dominant-pole-compensated feedback amplifier configurations have recently been developed specifically to exploit gain-bandwidth independence and offer constant-bandwidth operation throughout the full gain range. Do these two new amplifier types — the current-feedback amplifier (CFA) and the transconductance-feedback amplifier (TFA) — actually operate in a fundamentally different way to previous feedback amplifiers? Or are they able to avoid the restriction of a constant gain-bandwidth-product simply as a consequence of specific and non-optimum choice of feedback resistor values, with an inevitable cost in precision, sensitivity and bandwidth in comparison to their constant gain-bandwidth-product counterparts?
An Intuitive Method for Oscillator Analysis Using Miller's Theorems
Authors: Moura Luis
Published: February 2013

In this paper we discuss an intuitive method for the calculation of the oscillation frequency and the calculation of the conditions for sustained oscillation of analogue oscillators using the concept of negative resistance combined with Miller's theorems.
A Laboratory for a First Course in Control Systems
Authors: Basilio J. C.
Published: February 2013

The design of automatic control systems nowadays requires a great deal of theoretical knowledge. The consequence of this fact is that a large number of new concepts have to be introduced in a first course in control systems. However, these concepts are in general introduced somehow independently and this poses serious problems when the students are required to deal with the whole design of a control system. In this paper a control laboratory is proposed with the view to putting together all the concepts previously introduced in a theoretical course. Experiments are suggested such that all the stages of a control system design, namely modeling/identification, design/simulation and implementation are covered.
Fractal Image Compression Using Quadtree Partitioning
Authors: Soyjaudah K. M. S. , Jahmeerbacus I.
Published: February 2013

This paper describes the design and implementation of a software-based fractal image compression technique using quadtree partitioning, where the student produces user-friendly Windows 9xNT software that allows the compression and decompression of the grey-scale image. This involves the human-computer interface to realise the relatively large number of searches for affine patterns that results in an algorithmic representation of the image.
The Use of Computer-Assisted Assessment in Engineering: Some Results from the CAA National Survey Conducted in 1999
Authors: Bull Joanna , Collins Carol
Published: February 2013

This paper presents a snapshot of the findings from the National Survey (1999) into CAA activity in higher education and gives an overview of the usage of CAA in the engineering sector. It offers an insight into the ways in which technology and objective tests can be used to assess a range of learning outcomes.
WWW-based Calculation Tasks for Teaching Support of Electric Power Engineering
Authors: Korpinen Leena , Havunen Ilpo , Kuusiluoma Sampsa
Published: February 2013

Computer-aided instruction has been under development for several years in the Department of Electrical Engineering at Tampere University of Technology. The aim of this study is to develop interactive WWW-based calculation exercises for the course ‘Introduction to Power Engineering’. After the course, an inquiry was carried out. This inquiry showed that the self-study WWW program is useful, and similar programs may be developed.
Control of a Four-Level Elevator System Using a Programmable Logic Controller
Authors: Cheded L. , Al-Mulla Ma'an
Published: February 2013

This project reports on the design and implementation of a PLC-based controller for a four-level elevator. The PLC used is an Omron Sysmac C20K with 12 inputs and 8 outputs. The design incorporates an intelligent controller that services all the requests in an energy-saving way, rather than on a first-come, first-served basis. Some suggestions on how to extend this system to the control of more than four floors are also included.
Discrete Wavelet Analysis of Two-Dimensional Signals
Authors: Asamoah F.
Published: February 2013

Discrete wavelet transform using Daubechies coefficients is applied to decompose a two-dimensional signal into levels. Examples are given using BMP images of a sheep and a thumbprint. The size of the two- dimensional signal is 2N by M. It is shown that it is not necessary for M to be a power of 2. A MATLAB program is written for the computations involved.
The Mathematics Background of Undergraduate Engineers
Authors: Mustoe Leslie
Published: February 2013

A major problem for engineering undergraduates is a lack of basic skills in number and algebra. While we seek middle-term solutions to these problems we must do something for the immediate term. It is suggested that the other engineering subjects be taught in the first semester in a qualitative way.
Learning Styles: A Tool for Selecting Students for Group Work
Authors: Halstead Alison , Martin Lynn
Published: February 2013

A learning style assessment is used to assist staff in motivating undergraduate engineering students to participate in group work. Students who joined groups allocated on the basis of their learning style performed at a higher level than the students who self selected. This is similar to the findings of other researchers.
MATLAB/Simulink-Based Transient Stability Analysis of a Multimachine Power System
Authors: Patel Ramnarayan , Bhatti T. S. , Kothari D. P.
Published: February 2013

Simulink is advanced software by MathWorks Inc., which is increasingly being used as a basic building block in many areas of research. As such, it also holds great potential in the area of power system simulation. In this paper, we have taken a multi-machine power system example to demonstrate the features and scope of a Simulink-based model for transient stability analysis. A self-sufficient model has been given with full details, which can work as a basic structure for an advanced and detailed study.
Computer-Aided Learning of Controller Design: Focus on Fuzzy Logic Control
Authors: Lo C. H. , Wong Y. K. , Rad A. B.
Published: February 2013

A computer-aided controller design package is developed in this paper. The package provides a simulated environment for simulating the action of a controller under different parameter settings in order to achieve optimal system performance. The designed controller is then applied to a process plant for on-line control.
A Microcomputer Interfacing Laboratory
Authors: Garside J. D.
Published: February 2013

The majority of computer processors sold today are used as embedded controllers –devices which rely on a mixture of hardware and software in a real-time environment. The teaching of this subject falls somewhere between computer science and electrical engineering. This paper describes a laboratory developed to provide an easy-to-use solution to fill this gap.
Solving Polynomial Algebraic Equations of the Stand Alone Induction Generator
Authors: Nigim K. A. , Salama M. M. A. , Kazerani M.
Published: February 2013

This paper describes the use of MathCAD's solving block which uses ‘Given’ and ‘Find’ built-in functions to solve nth order nonlinear algebraic equations. Introducing complex energy systems to electrical engineering students in their undergraduate studies is essential to complement many energy conversion courses. Various electric energy-capturing schemes use electric equivalent circuit models that incorporate nonlinear elements with complex mathematical formulas requiring numerical computation. Without incorporating programming tools, the taught material could be vague and a burden for both the student and the lecturer, hindering comprehension of the complexity of the system during the limited lecture hours. This paper introduces a ‘ready to use’ computational and mathematical tool that can be used to solve the non-linear equations quickly. The performance of an energy scheme with non-linear, interrelated variables such as the self-excited induction generator (SEIG) under variable excitation and loading conditions is used as an example. SEIG systems have been intensively proposed for energy capturing to supply power to remote areas from renewable energy resources such as wind and hydro prime mover systems.
A Fast Method for Sequence Component Filtering
Authors: Paithankar Y. G. , Bhide S. R.
Published: February 2013

In this paper a method to filter or segregate sequence components, using minimal hardware is presented. The method does not involve phase shifts other than that of 90 degrees. Thus it can be implemented using very simple hardware or if implemented in software will need considerably less amount of processing. The method consists in first separating the zero sequence component. Then the zero sequence component is subtracted from the input signal to get a signal which is sum of positive and negative sequence components. Further it is pointed out that difference between positive and negative sequence components is easily found from the difference of the phase quantities. Thus the sum and difference of positive and negative sequence components are available, from which individual positive and negative sequence components can be easily separated by simple addition and subtraction operations.
Web-Based Remote Learning of Communication Systems: A Successful Experience
Authors: Martín Antonio J. López
Published: February 2013

A web-based on-line framework has been created to augment an undergraduate course in communication theory aimed at Spanish telecommunication engineering students. Its aim is to enrich the students' understanding on basic topics such as analogue and digital communication systems, information theory, random signals and noise, as well as to provide remote support, additional information and interactive tools. As an ultimate goal, it tries to contribute to a redefinition of the role of the student as the principal actor of his or her own learning.
Teaching Digital Control Using a Low-Cost Microcontroller-Based Temperature Control Kit
Authors: Ibrahim D.
Published: February 2013

The design of a low-cost digital temperature control kit is described. The system enables the students to implement various control strategies using a microcontroller. The kit is intended to be helpful in a control laboratory as a complement to the digital control system theory taught to undergraduate students.
Designing the Widlar Current Mirror
Authors: Hart Bryan
Published: February 2013

The Widlar current mirror, a widely used integrated circuit configuration, normally receives only a superficial treatment in electronics texts. This didactic study consists of a detailed analysis followed by a step-by-step design procedure that takes into account resistor and transistor parameter tolerances, a topic rarely covered in undergraduate/graduate courses.
How to Simplify Differentiation When Performing Partial Fraction Expansion in the Presence of a Single Multiple Pole
Authors: de Paor Annraoi
Published: February 2013

A new method is suggested to handle partial fraction expansion in the presence of a single high order pole, by using polynomial division and partial fraction expansion with simple poles only, to simplify the process of repeated differentiation of a rational function.
A Software Development Process for Small Projects
Authors: Trengove E. , Dwolatzky B.
Published: February 2013

We have designed a software development process that is suitable for small software projects, of the type typically performed by postgraduate students. The aim of the process is twofold, namely to put in place a quality management system which is manageable and appropriate for student projects and to provide templates and guidelines to assist students to design good software, in keeping with the current best practices for software design.
Applications of Signal Processing Tools in a Power Systems Course
Authors: Jurado Francisco , Valverde Manuel
Published: February 2013

The scope of a modern electrical engineering curriculum presents a challenging problem. It is quite difficult to design a well rounded and all-encompassing curriculum in a rapidly evolving field such as electrical engineering. In this paper, signal processing tools are presented that allow the student to see immediately the advantages and limitations of these techniques for electric power ‘quality’. Three signal processing techniques are considered: discrete Fourier transforms, wavelet filters, and discrete short-time Fourier transforms. The paper explains how the course material and teaching style respond to various requirements for an integrated design experience.
Electromagnetic Fields Theory of Electrical Machines Part I: Poynting Theorem for Electromechanical Energy Conversion
Authors: Mukerji Saurabh Kr. , Goel Sandeep Kr. , Bhooshan Sunil , Basu Kartik Prasad
Published: February 2013

The power flow across a closed surface containing moving media is considered using the Poynting theorem. Various components of this power are identified with known expressions. The effects of hysteresis are considered in a linearized form by assuming hypothetical relations between field vectors. These relations result in elliptical hysteresis loops for sinusoidal time-varying fields. The treatment presented may be useful to students preparing for a master's degree or final year bachelor's degree.
An Undergraduate Research Mentoring Model in Digital Signal and Image Processing
Authors: Abdel-Qader Ikhlas
Published: February 2013

This work presents a research-mentoring framework to train undergraduate students in a hands-on setting in the area of digital signal and image processing (DSIP). It is intended to encourage undergraduate students to pursue research and to add to their knowledge in information technology and enhance their active-learning and problem-solving skills.
Student Design Projects in King Abdulaziz University for Power Engineers
Authors: Ibrahim Emad S.
Published: February 2013

This paper describes samples of practically oriented senior design projects recently incorporated into an undergraduate power systems course at King Abdulaziz University, which have significant positive impact on power engineering education. These projects utilise a personal computer software package that includes transmission line, power flow, short circuit and transient stability computer programs. The senior projects should provide students with a major capstone design experience according to the rules of the engineering accreditation organisation in the USA, the Accreditation Board for Engineering and Technology (ABET). The projects, the way they are utilised and student reaction are all discussed.
Node-Voltage Method Using ‘Virtual Current Sources’ Technique for Special Cases
Authors: Chatzarakis George E. , Tortoreli Marina D.
Published: February 2013

A new technique based on the use of ‘virtual current sources’ makes any planar or nonplanar electric circuit solvable using the node-voltage method. The node-voltage method is systematized and it is shown how difficulties encountered until now with special circuit categories can be overcome.
Modelling and Simulation of Power Factor Corrected AC-DC Converters
Authors: Pandey Ashish , Kothari Dwarka P. , Mukerjee Ashok K. , Singh Bhim
Published: February 2013

The focus of the present work is on introducing the power electronics community to the modelling and simulation of power factor corrected (PFC) converters. These techniques not only help to develop a deeper understanding of these converters but also to evaluate performance and feasibility of control strategies and topological features without fabrication of an actual system. Important PFC converter topologies are modelled and simulated. Simulation results of a single-phase boost converter are then compared to simulation results obtained by SIMULINK/SimPower Systems as well as experimental results to provide an overview of the capabilities and limitations of various approaches. It is expected that this work will be of use to students as well as researchers who are interested in studying and researching PFC converters.
Application of PICs and Microcontrollers in the Measurement and Control of Parameters in Industry
Authors: González O. , Rodríguez M. , Ayala A. , Hernández J. , Rodríguez S.
Published: February 2013

This paper describes the use of microcontrollers in low-cost control applications. The main feature of the system is the use of programmable integrated circuits (PICs) to perform direct control processes within a plant. In this work, a control model based on distributed functions in levels is proposed to increase control task efficiency. With reference to a previous model, an efficient and simple control system is suggested for industrial applications. The designed system distributes its supervisory and control tasks in different units using commercial microcontroller devices. The results obtained with the previous system are described, which let us check the reliability and flexibility of the proposed model. Finally, several operational alternatives for the developed system are suggested.
Unified Aggregate Component Modelling of Dynamic Mechatronic Systems Using Bond Graphs
Authors: Dickinson Stephen. J.
Published: February 2013

Traditional dynamic modelling of multidisciplinary systems involves separate sets of analysis skills for each domain. Bond Graphs embrace commonality, providing a concise unified means of system representation and a systematic analysis method. This paper introduces Bond Graphs, benefits of acausal component models, and software for automated equation generation and simulation.
A Pre-Sessional Course: Retaining Engineering Students through Mathematical and Transferable Skills Support
Authors: Bamforth Sarah , Crawford Adam , Croft Anthony , Robinson Carol
Published: February 2013

Loughborough University is offering support to engineering students with non-traditional mathematics backgrounds in the form of a mathematics and engineering key skills pre-sessional course. The paper describes the planning and implementation of the pilot pre-sessional course and reflects on the lessons learnt and the effectiveness of this intervention.
‘It's Not for Lazy Students like Me …'
Authors: Mitchell John E. , Smith Janice , Kenyon Anthony J.
Published: February 2013

This paper details the development of problem-based learning in the Department of Electronic and Electrical Engineering at UCL, including opportunities and challenges in implementation experienced as the ‘pitfalls of the pilot’ with regard to issues in student support and the complexity of the tutor's role.
Assessment-Driven Learning of Mathematics for Engineering Students
Authors: Davis L. E. , Harrison M. C. , Palipana A. S. , Ward J. P.
Published: February 2013

HELM (Helping Engineers Learn Mathematics) is a three-year curriculum development project undertaken by a consortium of five universities (Loughborough, Hull, Reading, Sunderland and UMIST) which aims to enhance the mathematical education of engineering undergraduates by the provision of flexible learning resources. HELM makes extensive use of a computer aided assessment (CAA) regime, available in web- and CD-based versions, to drive student learning.

This paper first describes the HELM learning resources and outlines the project's assessment philosophy; the HELM assessment regime and how it can be successfully used for both formative and summative assessment are then described. Finally, the viability of the HELM assessment regime across the higher education sector is examined.
Portable Assessment: Towards Ubiquitous Education
Authors: Trinder J. J. , Magill J. V. , Roy S.
Published: February 2013

This paper reports on the progress of a project conducted at the University of Glasgow to investigate the benefits of Personal Digital Assistants (PDAs) as teaching, learning and formative assessment tools and the practicalities of deploying PDAs and assessing their use. Students from both electronics and electrical engineering degree courses and from summer schools were involved. Benefits included an increase in off-campus learning opportunities, in collaborative learning and in engagement with the course material.
A Real-Time Network Analysis Tool to Aid in Characterizing VoIP System Performance
Authors: White Christopher M. , Daniel Edward J. , Teague Keith A.
Published: February 2013

This paper details the development of an educational and research tool, the Network Performance Application (NPA), which provides real-time network performance measurement through a simulated voice over IP session using live real-time data transmission over packet networks. This application, written in Visual C++ for MS Windows environments, is used to collect Quality of Service (QoS) statistics such as packet loss, end-to-end delay, inter-arrival delay jitter, and out-of-order packet delivery. The paper also demonstrates a practical application using a government standard for VoIP transmissions.
Quality in the Design and Development of Digital Electronics Practical Tasks
Authors: Plaza Inmaculada , Medrano Carlos , Ubé Mariano , Blesa Alfonso
Published: February 2013

The paper describes the use of two classical ‘Tools of Quality’ in digital electronics practical tasks, which allow the detection and continuous improvement of the educational method. Students obtain a work methodology which is based on quality and rigour, and which can be applied in their professional future.
Electromagnetic Fields Theory of Electrical Machines Part II: Uniqueness Theorem for Time-Varying Electromagnetic Fields in Hysteretic Media
Authors: Mukerji Saurabh Kr. , Goel Sandeep Kr. , Bhooshan Sunil , Basu Kartik Prasad
Published: February 2013

Conditions resulting in a unique solution of Maxwell's equations are investigated. For this purpose, time-varying electromagnetic fields in media exhibiting a linearized form of hysteresis are considered. The treatment is an extension of the uniqueness theorem for electromagnetic fields in hysteresis-free media. The major conclusions are that there is no initial condition for fields in lossy regions, however, boundary conditions must be satisfied for all values of time. The treatment presented may be useful to students preparing for a masters degree or final year bachelor's degree.
Remote Power System Harmonics Measurement and Monitoring via the Internet
Authors: Lin Hsiung Cheng
Published: February 2013

Traditional methods to measure power system harmonics employ either a power harmonic analyser or a software package such as Matlab. However, these usually have limited capability when used with an Internet connection and/or graphical interface. In this paper, a PC-based virtual instrument (VI) that can carry out remote measurement and monitoring using LabVIEW and a microprocessor (Intel 8051) for power system harmonics is proposed. The history of total harmonic distortion (THD) in the waveform signal can be also recorded and tracked in the database.
Preparing CS Honours Students for a Research Career: The Wollongong Experience
Authors: Fulcher John A. , Piper Ian C.
Published: February 2013

This paper describes our experiences in recent years of introducing an Honours seminar program in order to better prepare students who continue on to pursue research postgraduate study. Benefits also accrue for those students who do not proceed to further study, and these are also discussed.
Simplifying Bode's Maximum Available Feedback Design
Authors: Mitchell Richard
Published: February 2013

Bode's method for obtaining ‘maximum obtainable feedback’ is a good example of a nontrivial feedback system design technique, but it is largely overlooked. This paper shows how the associated mathematics can be simplified and linear elements used in its implementation, so as to make it accessible for teaching to undergraduates.
Design of a PID Controller Circuit Employing CDBAs
Authors: Keskin Ali Ümit
Published: February 2013

Proportional-integral-derivative (PID) controllers are one of the most important control elements used in the process control industry. In practice, voltage mode circuits (e.g., operational amplifiers) are largely used in analogue controllers. However, recent developments in the areas of nanotechnologies and micro-electromechanical systems (MEMS) necessitate fast operating active analogue circuits. This paper presents a PID controller circuit based on a newly introduced active universal component, so-called current differencing buffered amplifier (CDBA), and shows that the circuit performs quite well as a PID controller and offers the benefits of a current mode structure. An example is given to illustrate the application of this new active element. The development of the overall circuit relies on concepts introduced in the frequency domain, therefore it can be used as material for undergraduate-graduate circuits, systems and control courses.
Integrating Semiconductor Device Characterisation and Reliability into Electrical Engineering Education
Authors: Yuan Jiann S. , Yang Hong
Published: February 2013

Semiconductor device reliability physics and testing have been successfully integrated into a semiconductor device fabrication course as supplementary contents, to embody more comprehensively the challenges and concerns of the semiconductor industry. In the semiconductor device fabrication class, students are exposed not only to the theory of basic processing techniques of integrated circuit fabrication, but also to the reliability issues arising from device scaling, such as hot carrier effect and time-dependent dielectric breakdown in MOS transistors. By adding reliability theory and testing, students will find the course more interesting and stimulating. They not only grasp measurement techniques, but also gain insight into device reliability. This helps them for job hunting or pursuing advanced education or research.
Model and Performance Simulation for Overcurrent Relay and Fault-Circuit-Breaker Using Simulink
Authors: Martín Sergio Sebastián , Fernández Mónica Bernabé
Published: February 2013

Simulink is an interactive software tool for modelling, simulating and analysing dynamic systems, which is showing optimum results in all fields of engineering. This article describes how a model of a circuit breaker controlled by an overcurrent relay was built to illustrate the tool's use in coordinating and selecting power network protection elements under stable, transient or no voltage power conditions.
A Web-Based Interface for the Gryphon Robot
Authors: Mootien Saravanen , King Robert T. F. Ah , Rughooputh Harry C. S.
Published: February 2013

The overall system that has been implemented involves a web site which introduces the study and applications of robotics. The web site also acts as a platform to program and control the Gryphon robot found at the Faculty of Engineering, University of Mauritius. The system is based on the client/server model, with a suitable front-end for viewing and interactive sessions with web users and a back-end relational database for storing and retrieving relevant information at the server side. This paper describes the development of a web-based interface for undergraduate students to learn the basics of robotics. The advantage of this interface is that the students can study robotics, write their programs and run the robot remotely at any time and this flexible learning approach definitely contributes to distance education and e-learning through the World Wide Web.
Basic Integrated Modelling: A Case Study
Authors: Salgado Mario E. , Oyarzún Diego R.
Published: February 2013

A control lab experiment is presented where the key issue is the modelling of a coupled tank system using a suitable combination of phenomenological knowledge and basic least-squares techniques. This approach can be followed without major difficulties by undergraduate students having no prior knowledge of modelling techniques. The paper includes an outline for the lab experiment.
Introducing the Finite Element Method in Electromagnetics to Undergraduates Using MATLAB
Authors: Haldar M. K.
Published: February 2013

This paper shows how electrical engineering undergraduates can acquire a working knowledge of the finite element method (FEM) within a short period of time using MATLAB. For simplicity, only first-order triangular elements are considered. The scalar wave equation for homogeneous isotropic waveguides is used for introducing the FEM. Simple waveguide problems, including a design problem, are discussed as examples. It is shown how the knowledge acquired can be extended to other electromagnetic problems.
Instructional Tools for Designing and Analysing a Very Simple CPU
Authors: Carpinelli John D. , Zaman Titu
Published: February 2013

The Very Simple CPU is an instructional aid developed to introduce students to the process of designing a microprocessor. It allows students to focus on design principles without becoming overwhelmed with complex design specifications. This paper describes the CPU and two tools used to teach students about CPU design, VHDL implementations and a Java-based simulator.
Introducing Peer-Supported Learning Approach to Tutoring in Engineering and Technology Courses
Authors: Mahdi Abdulhussain E.
Published: February 2013

An innovative, non-traditional tutoring programme based on collaborative and peer-support learning is described, and a reflection on two years of its implementation to specific subjects in electronic engineering and ICT-based courses at the University of Limerick is presented. The programme, known as Peer-Supported Learning Groups (PSLG), is an academic enrichment scheme, which has been developed by adapting the American SI model such that it meets the needs of students in Ireland and fits into the Irish third-level education system. This paper begins by giving a rationale for the introduction of the PSLG to the targeted subjects, followed by descriptions of the operational structure of the programme highlighting the difficulties encountered at the initial stages and the measures taken to alleviate these difficulties. Quantitative measures for evaluating the effect of the PSLG on students' performance, as well as analysis of feedback collected from the students and the leaders, are presented and discussed. The paper concludes by outlining issues for improving the current programme and associated further developments.
A Design Project for Electrical Engineering Students
Authors: Braae Martin
Published: February 2013

A low cost laboratory exercise that exposes students to a technically challenging engineering project and relies on teamwork has been developed and used successfully in an undergraduate course given to electrical engineering students. The project focuses on speed control of a small permanent-magnet d.c. electric motor and forms a major practical component of a senior control engineering course. The stated problem is to design, implement and evaluate an automatic feedback controller that solves an extremely difficult motor control problem that requires both theoretical and practical skills for its satisfactory conclusion.
AutoCAD-Based Concept for Estimating Lightning Protection Zone of Transmission Lines and Structures
Authors: Stojković Zlatan , Stankić Živko
Published: February 2013

The paper presents lightning protection zone visualisation for transmission lines and structures. Different methods used for protection zone evaluation are discussed. A software tool realised by applying AutoCAD and programming languages AutoLISP and Visual Basic is demonstrated. Some of the software tool possibilities are illustrated for concrete calculation examples.
An Aid for Teaching Voltage Stability Phenomena Using MATLAB/Simulink: Models, Simulation and Control Strategies
Authors: Fernández Rosa M de Castro , Rojas Horacio Nelson Díaz
Published: February 2013

This paper presents a dynamic analysis of the short-term voltage stability problem. The effects of different reactive control alternatives and load shedding used to avoid voltage collapse are studied. The effects of time-length disturbances and switching time of reactive power compensation are also analysed. In order to facilitate an understanding of the concepts associated with these phenomena an analysis of a simple test system is performed from a didactical point of view using Simulink.
Correction to the Classical Two-Species Hall Coefficient Using Twoport Network Theory
Authors: de Paor A. M.
Published: February 2013

By the use of twoport network theory, the classical expression for the two-species Hall Coefficient,

[Formula: see text]

is, on admission of terms neglected by earlier authors, corrected to

[Formula: see text]

The new expression approximates the old when | By| « min {1/ μn, 1/ μp}. The condition of approximation establishes the range of field strength in which the classical expression is acceptable. Since the Hall Effect is part of the stock-in-trade of electrical engineers, however, it seems important that students should be aware of the correct expression.
Electric Machine Undergraduate Lab: A Traditional Approach with a New Technical Base
Authors: Conejo A. J. , Arroyo J. M. , Milano F. , Mora J. A.
Published: February 2013

We describe our experience of designing and building an electrical machine laboratory and using it for undergraduate teaching. Using small, well-balanced machines, we pursue a design that allows the closest possible man-machine contact, so that students develop a direct understanding of the machine. We summarise our practical teaching experience and lessons learned.
Newton-Raphson Solution of Poisson's Equation in a Pn Diode
Authors: Jabr R. A. , Hamad M. , Mohanna Y. M.
Published: February 2013

This paper presents a numerical solution, using MATLAB, of the electrostatic potential in a pn junction, which obeys Poisson's equation. This numerical method is based on the Newton-Raphson technique and is useful for educational purposes. It can be incorporated in an undergraduate course on semiconductor devices to demonstrate the applications of numerical analysis techniques in device physics. It may also be appropriate for a section on numerical analysis techniques in an engineering mathematics course.
A Simple Approach for Branch Current Computation in Load Flow Analysis of Radial Distribution Systems
Authors: Prasad K. , Sahoo N. C. , Chaturvedi A. , Ranjan R.
Published: February 2013

The purpose of this paper is to expose students to a simple and efficient load flow algorithm for a radial distribution system (RDS). The basic structure and properties of the RDS are discussed, followed by an illustrative description of the load flow algorithm. The proposed load flow algorithm exploits the tree-type structure of the RDS and uses data structures efficiently. The flowchart and pseudo-codes of the algorithm have been included to help the students in writing their own program. The time and space complexity of the algorithm have also been discussed. The treatment and analysis will be useful for students' understanding of RDS, use of data structures in programming, and approximate complexity analysis of algorithms. The instructors can effectively use the contents of the paper for a basic lecture on RDS (PDF files of the Microsoft PowerPoint slides and C language program code can be downloaded from the website http://www1.mmu.edu.my/∼nirod/ ).
Electrical Power Engineering at the University of Ljubljana, in the Light of the European Bologna Reform
Authors: Bizjak Grega
Published: February 2013

The study of electric power engineering at the Faculty of Electrical Engineering, University of Ljubljana, will be modernised and adapted to the Bologna reform over the next few years. In this paper the present study of electrical engineering is briefly described. Then the steps taken within the Faculty during the past three years to adopt the Bologna reforms are presented. The opinion of the Chair of Electrical Power Systems and Devices is given, together with an overview of how the study of electrical engineering, in particular electrical power engineering, will be changed. Some personal comments of the author are also given.
Accreditation of Engineering Programmes at European Level
Authors: Augusti Giuliano
Published: February 2013

While Europe still lacks a common system for the accreditation of educational programmes, the Bologna process, now involving more than 40 countries, intends to establish a European Higher Education Area (EHEA) on the basis of ‘a system of easily readable and comparable degrees’. In this context, while recognition of professional qualifications is assured by European Directives (a new overarching Directive was published in September 2005), it is essential to ensure that educational programmes are accredited on a continental scale.

This paper illustrates the main outcomes of the EUR-ACE (EURopean ACredited Engineer) project, aimed at the establishment of a pan-European system for accreditation of engineering educational programmes on the basis of a multilateral, bottom-up agreement between national and regional bodies and Associations concerned, and the perspectives for its implementation.
The Russian System of Higher Education in View of the Bologna Process
Authors: Chuchalin A. , Boev O. , Kriushova A.
Published: February 2013

The paper illustrates the system of higher education of the Russian Federation in view of implementation of the key aspects of the Bologna process. The problems existing in Russian higher education and the process of developing and modernising the system of higher education over the past fifteen years are highlighted. Some recent legislative initiatives aimed at reforming the national system of higher education in accordance with the main principles of the Bologna process are presented. The issues of quality assurance, in particular, differences between state and professional accreditation are discussed. The role of the Russian Association for Engineering Education in development of the national system for professional accreditation in engineering education as well as its contribution to setting up a pan-European system for quality assurance in engineering education being created within EHEA are described.
Teaching Embedded Programming through Mobile Games Development in Symbian
Authors: Edwards Reuben , Coulton Paul
Published: February 2013

As standardised operating systems for mobile phones emerge the development skills required are not merely those of being able to programme in an object-orientated language; rather, they are those of the embedded programming engineer. In this paper we show that embedded programming can be both attractive to students and a novel way of delivering difficult engineering concepts.
The Importance of Analytic Solutions for Verification: Application to the Secondary Magnetic Flux of a Conductive Disk
Authors: Siakavellas Nicolaos J.
Published: February 2013

The method and value of analytical methods and the importance of analytic solutions for verification must be emphasised to both under- and post-graduate students. So, they must be able to: (i) derive by their own expressions for the quantities of interest, and (ii) test their numerical results by an independent method. Hence, they must be motivated to try to solve any problem analytically, before proceeding to a numerical solution. Towards this aim, a sample problem is proposed and an analytic expression is derived for the secondary magnetic flux induced in a conductive disk by a time-varying magnetic field. This expression, involving elliptic and improper integrals, is finally reduced into a single integral, depending on the current distribution on the disk. Next, an analytical solution for a simplified version of the problem is obtained, which may be used for verification of the numerical solution of the more complex and general problem.
New Analogues for Teaching a.c. Power Flow
Authors: ten Cate Arie
Published: February 2013

Two new mechanical analogues for teaching a.c. power flow over a lossless line are suggested. The first analogue is simple. It illustrates the phase angle between the sending end voltage and the receiving end voltage. The second analogue is somewhat more complicated and mathematically exactly analogous to the a.c. power flow model. It uses a concept which is familiar to every human: the inertia of mass. With this analogue we illustrate not only the voltage phase shift but also the maximum power over a line.
Analytical Solutions of Electromagnetic Fields in Prismatic Regions
Authors: Mukerji Saurabh Kumar , Ramamurthy M. B. , Goel Sandeep Kumar
Published: February 2013

To estimate the electromagnetic fields anywhere along a rectangular or circular waveguide, analytical solutions for Maxwell's equations are already available. In this paper analytical solutions for Maxwell's equations are presented for fields along three-dimensional prismatic regions with travelling or standing waves. The solution of the Laplace equation, for prismatic regions with scalar potential field, is also given.
Problem-Based Learning in Electronic Engineering: Locating Legends or Promising Problems?
Authors: Savin-Baden Maggi
Published: February 2013

This paper examines the possibilities for using different forms of problem-based learning in the context of engineering education. It begins by exploring recent research into the way in which staff expect students to learn in higher education. Early models of problem-based learning are presented to offer some context to various modes of curriculum design. The later part of the article provides a view of more recent developments and formulations of problem-based learning and suggests ways in which it might be implemented in electronic and electrical engineering.
Load Flow Network Analysis with Problem-Based Learning Approach
Authors: Bizjak Grega
Published: February 2013

At the Faculty of Electrical Engineering in Ljubljana, Slovenia, problem-based learning is used in a series of exercises in the ‘Electrical power networks’ course, which is part of the four-year professionally oriented electrical power engineering programme. Students, divided into groups of six to eight, must design and analyse a small middle-voltage distribution network. First, they need to evaluate the initial design through manual calculations, then with load flow calculation software as well. Finally the results of the calculations are verified with the measurements on a network model. The problem-based learning approach proved a very efficient method, which students readily accepted.
Increasing Student Motivation by Linking up Knowledge Transfer with Enjoying Studying
Authors: Weber T. , Klages S. , Werthschützky R.
Published: February 2013

At the Institute of Electromechanical Design at Darmstadt University of Technology a unique course, which is highly motivating for students, is an established part of the studies. In the form of a seminar entitled ‘Practical Engineering Methodology (PEM)’, students learn how to manage a systematic development process, using the established V model. The course's main focus lies in the conception phase, arguably the most demanding one of a development process. This starts with clarifying the tasks and ends with the elaboration and putting into operation of the device. In addition to a theoretical lecture the students work in small groups on a scientific topic. The theoretical learned facts of basic studies can already be applied to sophisticated development topics. A scientific assistant supervises the group. Additionally, soft skills are imparted in the form of mixed teams, oral presentations and elaborations. The PEM seminar results in highly motivated students who are successful at the beginning of their employment.
A Systematic Approach for Phase-Fault Over-Current Protection Coordination of Complex Networks
Authors: Ekanayake J. B.
Published: February 2013

Over-current protection for phase faults is very common and protection schemes based on different types of relays are presented in the literature. Even though these published works present protection coordination of radial, parallel and ring feeders, a systematic approach to the handling of a complex network is not found. This paper aims to provide a systematic approach for protection coordination of a complex but realistic network. A case study was used to elaborate the different steps involved and references were given to applicable standards.
Studying the Effects of Distributed Generation on Voltage Regulation
Authors: Lawrence C. P. , Salama M. M. A. , El Shatshat R.
Published: February 2013

The focus of this work is to introduce the power distribution community to the effects distributed generation has on distribution systems. Specifically, changes in the voltage profiles and operation of voltage regulation are studied. A distribution system model equipped with Line Drop Compensation is developed and integrated into the PSCAD/EMTDC™ simulation environment. Distributed generation is added to the simulation environment to observe its effects on the traditional voltage regulation scheme. An algorithm from previous research that mitigates these effects is analysed and sample calculations are performed in MATLAB™ for validation.
Diode, Thyristor and Triac Tests Using PSpice and Their Integration into Undergraduate Power Electronics Courses
Authors: Altawil I. A. , Al-Zoubi Q. M. , Yamin H. Y.
Published: February 2013

This paper describes PSpice implementation of three power electronic devices: diode, thyristor, and triac, performed to identify characteristic curve parameters. Development of these simulation models is used to support and enhance power electronics education at the undergraduate level. The proposed tests have been successfully integrated into power electronics courses.
Obtaining State Equations for Nondegenerate Linear Electric Circuits Using Fundamental Loop Analysis with Virtual Voltage Sources
Authors: Chatzarakis G. E. , Panagopoulos A. D. , Cottis P. G.
Published: February 2013

This paper presents a systematic method for obtaining the state equations for any Nondegenerate Linear Electric Circuits (NDLEC) (especially for nonplanar circuits), based on Fundamental Loop Analysis with Virtual Voltage Sources (FLA-VVS). To apply this method, all circuit energy-storage elements and nonconvertible current sources are replaced by virtual sources. The work is mostly done by inspection.