bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative Analysis of the Application of BPA and PSCAD in Voltage Sag Simulation
Authors: Zheng Zongan , Wu Minhui , Chen Jingteng , Li Huibin , Ruan Zhengxin , Zhang Yi 
Published: December 2020

Abstract
As there is no special engineering software for simulating voltage sags caused by grid faults, this paper compares the differences between the existing BPA and PSCAD simulation software in the voltage sag simulation process, and analyzes the applicability. First, analyze the similarities and differences between the transient and steady-state characteristics of the basic devices in BPA and PSCAD, as well as the parameter conversion method; Secondly, based on actual grid data, two sets of software are used to model and simulate the voltage sag caused by grid faults. Finally, through the comparison and analysis of simulation results, the different applicability of the two sets of simulation software in voltage sag simulation is summarized.
Equivalent calculation of aperiodic component of thermal effect of DFIG with short circuit fault
Authors: Li Yongbo , He Chuan , Zhang Yahai , Qian Hanhan , Li Shenghu 
Published: December 2020

Abstract
The temperature rise caused by three-phase short current at stator side of doubly fed induction generator (DFIG) may damage DFIG and its adjacent electrical equipment. By using the step-by-step integration, the thermal effect may be quantified, but the contribution of periodic component and aperiodic component of thermal effect cannot be distinguished, and the amount of calculation is large. In this paper, the steady-state component of rotor flux is considered to reduce the error of analytical expression of short current. The components of short current are decomposed and the square of the short current is integrated. The calculation method of equivalent duration of aperiodic component of thermal effect is proposed, and the effect of equivalent duration on different crowbar resistance and stator voltage drop ratio is quantified. The simulation results are provided to validate the accuracy of the proposed models.
Ultra-High Frequency Partial Discharge Signal Recognition in GIS based on Fisher Linear Discriminant Theory
Authors: Xudong Pei , Xubing Pei , Haiqi Xu 
Published: December 2020

Abstract
In this paper, dual tree complex wavelet transform (DT-CWT) is used to decompose UHF partial discharge (PD) signal in multi-scale. The optimal decomposition level of complex wavelet is solved. The wavelet energy features of real part and imaginary part of UHF-PD signal under the optimal decomposition scale are extracted. Fisher linear discriminant method is used to select the features of energy features and to identify the PD types. The results show that the optimized real part and imaginary part high frequency wavelet energy features can effectively identify four kinds of typical insulation defects, and the recognition rate can reach to 92.5%. Meanwhile, the optimal complex wavelet energy (OCWEF) feature has better sensitivity and recognition effect in PD type identification.
Effect of binding wire on electric field distribution of overhead insulated conductor in distribution network
Authors: Liang Yuanpeng , Xiang Nianwen , Li Kejie , He Kai , Yang Jin , Tian Ye , Zhou Lijun 
Published: December 2020

Abstract
In recent years, the ablation damage of overhead insulated conductor on the top of insulators has posed a threat to the safe and stable operation of distribution network. In this paper, a three-dimensional model including insulator, binding wire and conductor is established in the finite element simulation. Then analyse the influence of the existence of binding wire and the diameter of binding wire on the electric field distribution of conductor. Providing a theoretical basis for the cause and prevention of the ablation damage of conductor insulation layer. The simulation results are as follows: When binding wire exists, electric field distortion will occur in the insulation layer and surface air around the conductor. The maximum electric field intensity of the surface air around conductor reaches 15.5kV/cm, which is about 690% higher than that without a binding wire. The maximum electric field intensity of the insulation layer reaches 4.3kV/cm, which is 980% higher than that without binding wire. In addition, as the diameter of the binding wire increases, the maximum electric field intensity in the insulating layer decreases and the maximum electric field intensity in the air on the surface around the conductor has small change.
Coordinated Optimization Model of Planning and Operation of Integrated Energy System Based on Mixed Integer Programming
Authors: Wang Xiaohui , Xu Nan , Liu Yaqiong , Lu Yanchao 
Published: December 2020

Abstract
In recent years, the planning and operation of integrated energy system has received extensive attention. The traditional two-stage nonlinear model of planning and operation has problems such as inability to reach the global optimum and low solution efficiency. By linearizing the nonlinear constraints, this paper introduces a coordinated optimization model of planning and operation of integrated energy system based on mixed integer programming, which takes the minimum annual cost as the objective function and considers the coupling characteristics of electrical, thermal, and cooling load. The model achieves the optimal capacity configuration and operating scheme at the same time. Results of the testing data verify the effectiveness of the model.
Study on Anti-Magnetic Pollution Ability of Ni-Cd Battery
Authors: Xu Chaoqun , Han Xiaodong , Liu Chaobo , Meng Lifei , Xiao Qi , Yi Zhong 
Published: December 2020

Abstract
Ni-Cd battery pack is an important part of spacecraft, and its performance is easily affected by the changing magnetic field. In order to grasp the anti-magnetic pollution ability of the battery pack, this paper conducted a charge and demagnetization test study on the battery pack in a magnetic field environment simulation site by adjusting the intensity, frequency, waveform and other magnetic parameters to investigate the charging and demagnetizing effect of the battery pack. The results show that the Ni-Cd battery pack has weak resistance to magnetic pollution and is easily magnetized. In addition, when the magnetic strength is 4.5 mT and the frequency is 1.5 Hz, the demagnetization in three directions of the Ni-Cd battery pack can be well accomplished. This study provides a reference for the use of Ni-Cd battery packs in the magnetic environment and the removal of magnetic pollution effects.
Application of acoustic imaging technology in power transformer condition evaluation
Authors: Hao Ma , Minghui Duan , Chuang Yao , Wei Wang , Junji Feng , Liqing Liu 
Published: December 2020

Abstract
Power transformer is the core equipment of the power system. Its operation status directly affects the security and reliability of the whole system. Therefore, it is of great significance to evaluate its status timely and accurately. Acoustic imaging technology is first used in medical, communication and other fields, which can effectively sense abnormal sound and locate it accurately, which greatly improves the work efficiency. This paper introduces the application of acoustic imaging technology in live detection of power transformer. The result shows that the combination of acoustic imaging technology and traditional live detection technology can improve the working efficiency of live detection and the accuracy of transformer condition evaluation, which is conducive to maintaining the safe and reliable operation of power grid.
Integration Of Quality Function Deployment (QFD) And Value Engineering In Improving The Quality Of Product : A Literature Review
Authors: Ginting Rosnani , Riski Satrio Muhammad 
Published: December 2020

Abstract
Product development using the QFD method is often applied in the industry to meet customer satisfaction by improving quality. Quality improvement is an important factor for a company to be able to maintain its existence in the industrial world. Value engineering is used to provide improvements to the materials used to reduce production costs. This paper discusses the Integration of QFD with Value Engineering in the product planning process. QFD improves service/product performance based on customer requirements, whereas Value Engineering changes the cost of a service with product regardless of mode of work and quality. The combination of QFD and Value Engineering methods focuses on costs and improving services and products. This paper describes the integration of the two methods given the implementation simulation implementation. The methodology is used to collect, analyze, and display data used for the design process. This paper summarizes the experience gained during implementing QFD and Value Engineering for component redesign improvements. Research shows that this method is used to keep the team focused in carrying out the design.
Design of Standard Operational Procedures of Flip and Lifting Material Processes
Authors: Ardinata B I , Fajrah N 
Published: December 2020

Abstract
The manufacturing industry is inseparable from the process of lifting material using a crane. The demands of the machining process require the material to be flipped and lifting material. In many companies, flip and lifting material is a high-risk process, because the material has a big load so can be potential to work accident. Mostly, the operator of the crane does the flip material process based on their experience, so that each operator has a different way. The design of SOP aims to equate the procedure and to reduce the HARC score so that the process becomes safer and controlled. The approach that the researchers used was the RIE project. Based on the design of SOP, founded that SOP for flip and lifting material is highly recommended for the operator of a crane, so the operator can work safely. Based on the validation process with the HSE Expert, the SOP is declared as a suitable guide for the operator in conducting flip and lifting material. Therefore, the HARC score decreased from 6 to 4. It means the process of flip and lifting material is safer and still needs continuous improvement with the SOP to the next improvement with different conditions.
Design of Effective Positioning and Form of Front-of-Pack Nutrition Labelling on Food Products Based on Eye-Tracking Method
Authors: Winarno D A , Link S , Muslim E , Moch B N 
Published: December 2020

Abstract
Nowadays, Indonesian consumers are very lacking in attention to nutrition labels. This research focused on front-of-pack nutrition labelling. Based on a research conducted in US, Europe, Australia, and New Zealand, front-of-pack nutrition labels ease consumers to choose healthier food products. The objective of this research for the food manufacturers is as a recommendation of effective front-of-pack nutrition labelling, and for the consumers as a consideration to choose proper and healthier products. This research was begun with consumer preference questionnaire and was continued with eye-tracking. The results of questionnaire and eye-tracking were compared and were validated using eye-tracking. This research shows that the most effective front-of-pack nutrition label should be placed at upper left and using PDI (Percent Daily Intake) format.
Product design of post-stroke static bicycle
Authors: Ginting Rosnani , Ishak Aulia , Syahda Aulia 
Published: December 2020

Abstract
This research was conducted to design a standart static bicycle for post-stroke patients using Quality Function Deployment method combined Analytic Hierachy Process, Value engineering, and Brainstorming model. The product was designed from strong metal material, portable, by considering the strength to withstand the load, ergonomic aspects, and the stability. Quality Function Deployment was used to determine the characteristics of the product. pair wise comparison in Analytic Hierachy Process model was chosen to obtain and identify the optimum attributes alternative. Meanwhile, Brainstorming applied to collect and generate various ideas of characteristic products. Open and closed questionnaire were used as a survey tool. The results showed that optimum weight is on the backrest material, while the smallest weight is the color of the additional function.
Design of Anti Overload Bag product with the Nigel Cross Approach
Authors: Ginting Rosnani , Ishak Aulia , Sihombing Nicholas , Ramadhan Muhammad 
Published: December 2020

AbstractThe use of a backpack that is not appropriate has a significant negative impact on users. These negative effects can cause back pain and changes in body posture. Many students who carry backpacks on their backs exceed 10% of the total body weight. Therefore, an innovative backpack product, Anti Overload Bag. This bag is equipped with sensors and alarms that will sound if the load that lifted does not match the load that it should be. In the process of making the product design, the Anti Overload Bag is first used a brainstorming technique to determine the characteristics of the product to be made, then draw conclusions from the brainstorming that has been collected. Then the sampling technique done by distributing open and closed questionnaires to determine the type of product. Then a market survey is conducted using a sampling technique, to determine the validity and reliability of the main products with products of competitors I, II, III. Sub problem steps to sub solutions are carried out to determine the Product Quality Function Deployment (QFD). The sub-solution step to the solution is determined to generate and evaluate alternatives by the sum of the paired matrices between attributes.
Design of the box type evaporator in the solar adsorption refrigerator
Authors: Sinurat N S , Sitorus T B , Hutasoit M B , Putra M F , Siahaan P B M 
Published: December 2020

Abstract
The evaporator is a device used to separate two phases between liquid-gas and liquid-liquid by using heating media. The model uses aluminum material with dimensions 170 mm x 170 mm x 240 mm and uses 3 mm aluminum thickness and three pieces of aluminum pipe with dimensions of 100 mm. The choice of material used it aims to obtain optimal results from the work of the evaporator. The effect of temperature is significant in the process that occurs in the evaporator will determine the effectiveness of the evaporator so that it can separate the water content in methanol. By heating, until one component evaporates on its boiling route, it can separate it from other parts by using methanol with 90% purity. The results of the design that is made produce an evaporator with a volume of 5 liters. The minimum evaporator temperature obtained during testing occurs in the second cycle of 0.5°C. Several factors affect the performance of an evaporator. The total heat needed in the process of reducing the maximum water temperature to the minimum water temperature and the latent heat required by methanol to evaporate.
Aromatherapy Pillow Design Using QFD Method to Cure Pinched Nerve
Authors: Ginting Rosnani , Ishak Aulia , Humaira Chalisa 
Published: December 2020

Abstract
The therapeutic hot pillow is a blend of science and ancient health techniques concoction that are Able to cure various ailments and maintain the body. Heat therapy can open blood vessels wider, thus increasing blood flow and supply of oxygen and nutrients to reduce pain in joints, muscles, and ligaments. Warm temperatures can also reduce the potential for muscle spasms. The specific purpose of this product design is to cure neck pain. The sub-issue of the Aromatherapy Pillow product / device specification will find a sub-solution with steps from Nigel Cross, Determining product characteristics with Quality Function Deployment (QFD). Evaluate alternatives by using Pairwise Comparison and AHP measurements to calculate the weights of each attribute and determine the ranking of each alternative. Value Engineering is the final step of the design process in order to increase of the value of the product for the consumer and reduce the cost to be paid by the manufacturer. Value engineering steps are to list the product components and identify the function of each component, determine the value of the identified function, calculate the cost of each component, find ways to reduce costs without reducing value, and Ultimately Evaluate alternatives.
The box-type condenser design used in solar adsorption refrigerator
Authors: Siahaan P B M , Sitorus T B , Hutasoit M B , Sinurat N S , Putra M F 
Published: December 2020

Abstract
This study aims to create a fin-type condenser design on a solar adsorption refrigerator with a cross-flow to condense the working fluid, methanol, cooling fluid, and environmental air. The designed condenser has a height of 57 cm, a width of 40 cm. A diameter of horizontal pipe 2.5 cm, a diameter of vertical pipe of 1.9 cm, the distance between pipes 5 cm, fin length of 40 cm, fin width of 7 cm, fin thickness of 0.2 cm, the distance between the fin is 2.05 cm, the number of fins 15 pieces, the number of vertical pipes 5 and 2 horizontal pipes. From the theoretical calculations, the effectiveness of the condenser 0.57.
Product Design of a Multifunctional Wheeelchair Using Nigel Cross Approach
Authors: Ginting Rosnani , Ishak Aulia , Diyana Etaniya Lani 
Published: December 2020

Abstract
A wheelchair is a tool used by people who have difficulty walking due to illness, injury or disability. In general, wheelchairs can only be used for sitting and as a tool that helps users move from one place to another. The multifunctional wheelchair that will be designed aims to make it easy for wheelchair users to carry out their activities. This multifunctional wheelchair has an additional function in the form of a toilet as a place to defecate and is equipped with a table and basket. In the process of making this multifunctional wheelchair product design, first a brainstorming technique is used to determine the characteristics of the product to be made, then draw conclusions from the brainstorming that has been collected. Furthermore, the sampling technique was carried out by distributing open and closed questionnaires to determine the type of product. Then conducted a market survey using sampling techniques, and determine the validity and reliability of the main product with competitor I, competitor II and III competitors. The step of the problem to the sub-problem is determined in order to classify the objectives to be made in designing a multifunctional wheelchair product.
Design assembling and testing of the oil palm bunches cutting machines
Authors: Hamsi A , Sitorus T B , Isma T B 
Published: December 2020

Abstract
One of Indonesia plantation products, which is considered very potential and strategic to be developed, is palm oil, which is a national mainstay product, and palm oil has a bright prospect for the growth of plantation commodity exports when compared to other vegetable oil products. Harvesting oil palm is cutting fresh fruit bunches from trees to transportation to the mill. This tool is designed from a lawnmower by changing the motion of lawn blades into a back and forth translational motion. Trimming or cutting blades will be converted into a back and forth movement of movements to cut oil palm bunches. From the results of this development found the results of research in the form of the speed required by the machine that is 1400 mm/min then the power needed to cut fresh fruit bunches with age 3-8 years which weighs 3.5-13 kg/bunch is 0.81 kilowatts or 810 watts which have a 6000 rpm combustion motor rotation using a cutting blade whose material is steel with an angle of 1350 with a pole length of 2.9 m which can be extended to 4.5 m.
Design of Multifunction Wheelchair with Nigel Cross Method
Authors: Ginting Rosnani , Ishak Aulia , Tefila Purba Agnes Aneni 
Published: December 2020

Abstract
Product design can be done with the initial steps of a systematic approach that is making concept ideas and evaluating them. With the concept, the product design is required to have a concept development, as well as testing of the concept. This research aims to add a multifunctional design to an existing product, a lever for an adjustable chair, and a place for drinking bottles. The design attributes are obtained from the designer’s brainstorm. The size of the design is obtained from a direct field survey of market desires for Multifunctional Wheelchair Products. This Multifunction Wheelchair was created because. Manual wheelchairs have the disadvantage of requiring a lot of energy for their users. The specifications of the Multifunctional Wheelchair are obtained from distributing questionnaires to the elderly and disability in hospitals. QFD method discusses a comparison between Multifunctional Wheelchair Products, with 3 other competitors with the same attributes. Solving each problem, resulting in sub-solutions from Nigel Cross’s steps to maintain product excellence. Pairwise Comparison and AHP calculate the weights of each attribute then rank them. The final step is value engineering to increase the value product for consumers and reduce the cost of producing.
Integration of Kansei Engineering and Quality Function Deployment (QFD) for Product Development : A Literature Review
Authors: Ginting Rosnani , Ishak Aulia , Fauzi Malik Alfin , Satrio M Riski 
Published: December 2020

Abstract
Kansei is a Japanese word that means consumers’ feelings and psychological imagery about new products. Kansei Engineering aims to produce new products based on the feelings and demands of consumers. Quality Function Deployment can be defined as a mechanism or process for determining customer requirements which are further translated into technical characteristics, so that every level of organization and functional area are able to understand and make improvements to achieve the objectives of consumer product selection that now seems irrational. However, price, quality assurance and functionality are no longer the choice’s main criteria, but what attracts and invites the five senses has become the choice. Spoiling customers is now critical issues to long-term business success. Through Kansei Engineering can help translate customer feelings into design specifications, while QFD can help companies to determine customer desires. This paper provides a combined analysis of method reviews from Kansei Engineering with Quality Function Deployment. Several international journal articles published in 2010-2019. Thorough analysis has been carried out and focused on this paper on practical use.
Quality Control Analysis on Poly cups Products Using Six Sigma Approach at PT “X”
Authors: Ishak Aulia , Siregar Khawarita , Daniel Damanik Jamichael 
Published: December 2020

Abstract
Quality in the manufacturing industry besides emphasize on the products produced, also need to be considered quality in the production process. Thus, the final product is defect free and there is no more waste to be paid handsomely because the product must discarded or reworked. PT. “X” is a company in the form of a Limited Liability Company in Deli Serdang Regency, North Sumatra. This limited liability company was established by several. PT. “X” is engaged in manufacturing namely producing poly cups. This company can produce 3900 poly cups box cartons / day. In a day can produce 352,800 poly cups/day. This quality control research was conducted at PT “X” with the product produced was poly cup. The study was conducted to determine the attribute defect of the poly cups with poly cups divided into 23 subgroups. Sampling is done by systematic sampling. Then, Six Sigma is one of the approaches that is used in this company quality control such as another make to stock company type.