Query: power electronics

title: The Balance of Renewable Sources and User Demands in Grids: Power Electronics for Modular Battery Energy Storage Systems
abstract: The continuously growing amount of renewable sources starts compromising the stability of electrical grids. Contradictory to fossil fuel power plants, energy production of wind and photovoltaic (PV) energy is fluctuating. Although predictions have significantly improved, an outage of multi MW offshore wind farms poses a challenging problem. One solution could be the integration of storage systems in the grid. After a short overview, this paper focuses on two exemplary battery storage systems, including the required power electronics. The grid integration, as well as the optimal usage of volatile energy reserves, is presented for a 5 kW PV system for home application, as well as for a 100 MW medium voltage system, intended for wind farm usage. The efficiency and cost of topologies are investigated as a key parameter for large scale integration of renewable power at medium and low voltage.

title: Power Electronics in Smart Electrical Energy Networks
abstract: Principles of Electrical Power Control Overview of Power Electronics Converters and Controls Quality Problems in Smart Networks EMC Cases in Distributed Electrical Power System High Frequency AC Power Distribution Platforms Integration of Distributed Generation with Electrical Power System Active Power Quality Controllers Energy Storage Systems Variable and Adjustable Speed Generation Systems Grid Integration of Wind Energy Systems Grid Integration of Photovoltaics and Fuel Cells

title: Power electronics system integration for electric and hybrid vehicles
abstract: The paper gives an overview of the basic requirements, concepts, and trends regarding a system integration of power electronics in hybrid (HEV) and electric vehicles (EV) A site of action system integration of the various power electronics subsystems minimizes costs and construction space requirements. New technologies that foster a system integration of power electronics and a merging with the mechanical environment are presented. The focus is on power modules and passive components.

title: Power electronics and electrical insulation systems Part 1: Phenomenology overview
abstract: It is well known that the wide use of power electronic converters (PEC) is one of the main causes of current and voltage distortion in the electrical networks. These converters generate harmonic components propagating toward the supply network side and nonsinusoidal voltage at the load side. Distorted waveforms generated by power electronics can dramatically reduce the reliability of insulation systems. Such systems should be designed bearing this important factor in mind.

title: Power Electronic Signaling Technology A New Class of Power Electronics Applications
abstract: The application of power electronics to facilitate the transmission or conversion of electric energy has been well known. This paper presents a different class of power electronic applications the power electronic circuits are deployed to create small but discernible signals online. The signals are utilized for monitoring, power line communication and other information oriented purposes. We use the term "power electronic (PE) signaling technology" to designate the technologies involved in these applications. The objective of this paper is to survey and review the developments in this fascinating field. Several highly successful PE signaling technologies and their applications are illustrated. It is believed that signaling oriented power electronic techniques will have many potential applications in power systems and can be a major source of innovation for the smart grid initiative.

title: Survey of power electronics and electric machine application for on site railway power system in Japan to realize eco friendly transportation
abstract: In this paper, a survey of novel applications of power electronics and electric machine technology for on site railway power supply system during the last decade in Japan to realize environmentally friendly transportation is conducted. The applications for high speed railway transportation called Shinkansen are described in Chapter 2 and for conventional railway are in Chapter 3. Not only the technologies which have been put into practical use but also the technologies which are just proposed and tested are introduced. The railway transportation in Japan has already realized CO2 emission index about 19g CO2/person km while the index of car is about 168g CO2/person km. Electrification is, as a matter of course, key technology to realize such a eco friendly transportation and its system progresses day by day applying power electronics and electrical machine technologies. The continuing effort of railway companies and manufacturers in Japan to make the system more reliable and more ecological will be grasped in this paper.

title: Future role of power electronics
abstract: In two years of survey project on "GreenElectronics technology toward 2050 highly electrified society" (Report ID No. Q05018) funded by New Energy and Industrial Technology Development Organization (NEDO) it has been found that power electronics is the key technology for the future reduction of CO2 emission with power electronics equipment used ubiquitous way in variety of application including EV, heat pumps, lightings, renewable energy systems, ICTs and motor drives. This paper reports scenarios in terms of "Negawatt" (efficiency as energy resource without CO2 emission) with power electronics technology.

title: Teaching Electrical Drives and Power Electronics: eLearning and Beyond
abstract: Today the education is influenced by eLearning facilities and the accent lies in skills and (deep) understanding rather than in knowledge. In the paper survey of the present state of development of eLearning in Electrical Drives and Power Electronics (ED&PE) is given. Problem based and project based education are the keywords for modern education. This gives to the student a very good knowledge in individual disciplines while integrating the disciplines together to a useful whole of knowledge and skills is difficult. Integrating the disciplines and finding new challenging examples and teaching methods is illustrated on example of an electrical drive for a hybrid car. The paper summarizes the results achieved in the development of multimedia based eLearning tools in the field of electrical drives and power electronics as well as distance and virtual laboratories. Finally many challenges for future development of the eLearning are listed

title: Building block integration in Power Electronics
abstract: This paper accompanies an overview presentation at the ISIE 2010 Panel Session on "PEBB Concept in the Industrial Power Electronics Systems." Therefore, the talk and the paper use the material that was previously presented by the author elsewhere, primarily in the invited papers at PCIM 2005, and CIPS 2008 and 2010. The presentation addresses possible directions for the improvement of power processing technology through advanced integration. The central focus is to advance the integration of electromagnetic power passives, EMI filters, control, sensing, and interconnect structures in the power converters, in addition to the integration of the power semiconductor switch assemblies. The fundamental functions in electronic power processing, the materials, processes, partitioning and integration approaches, multi disciplinary design optimization, and future concepts are discussed.

title: Analysis of the effects of a high power electronics controller on electrical Grids during faulted and post faulted conditions using wavelets
abstract: FACTS controllers and HVDC links are high power electronics based structures which have shown its strength in improving the operation and control of nowadays electrical networks worldwide. Alongside the many benefits they provide, there are also collateral effects on the grid as consequence of dynamically deviating localized network parameters, which affects the protection system for instance. This paper reviews some effects of the STATCOM, TCSC and UPFC on equivalent parameters of the grid on faulted and non faulted conditions. As main point, this paper also analyses the dynamic effects of the TCSC on the equivalent reactance of the neighborhood of the controller in the transit from pre faulted to faulted condition. The steady state waveforms and those from the transient oscillations emerged during the faulted state are processed using wavelets to determinate effective protection and control actions. The results presented have been obtained by combining the capabilities of PSCAD and MATLAB Simulink.