2014 49th International Universities Power Engineering Conference (UPEC)最新文献_第2页

EMpower university efficiency. Solutions investigation within the buildings of technical university of Cluj-Napoca 提高大学效率。克卢日纳波卡技术大学建筑内的解决方案调查

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934632

Krisztina Vezer, A. Ceclan, L. Czumbil

引用次数: 1

Optimal control of a hybrid system of photovoltaic and fuel cell in residential use 住宅光伏与燃料电池混合系统的最优控制

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934629

Juniku Matsuura, K. Kawahara, Zoka Yoshifumi

引用次数: 4

Integration of electric vehicles in a microgrid with distributed generation 微电网中电动汽车与分布式发电的集成

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934641

A. Hassan, A. Firrincieli, C. Marmaras, L. Cipcigan, M. Pastorelli

引用次数: 7

Design optimisation of Permanent Magnet Synchronous Motor for electric vehicles traction using the Bees Algorithm 基于蜜蜂算法的电动汽车牵引用永磁同步电机优化设计

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934742

N. Braiwish, F. Anayi, A. Fahmy, E. Eldukhri

{"title":"Design optimisation of Permanent Magnet Synchronous Motor for electric vehicles traction using the Bees Algorithm","authors":"N. Braiwish, F. Anayi, A. Fahmy, E. Eldukhri","doi":"10.1109/UPEC.2014.6934742","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934742","url":null,"abstract":"Electric machines designs for traction application are concerned with paying particular attention to power density and efficiency. Therefore, this paper is focused on applying Bees algorithm (BA) for optimal design of Brushless Permanent Magnet Synchronous Motor (BLPMSM) for propulsion application. The analytical approach for the motor magnetic circuit is performed using the radial instantaneous magnetic field distribution in the airgap under specified loading condition; taking into account the magnetic core saturation and motor overall performance. The design aims to maximize the power density. Therefore, the optimisation objective function is formed to minimise motor weight and maximise efficiency. While the Bees Algorithm (BA) is applied to search for the optimum design parameters; the optimised design is then verified using Finite Element Method (FEM). Comparing with an existing machine, called here basic motor; the obtained results show that motor weight can be reduced by approximately 20%, while motor output power is kept constant. As the motor is designed for traction applications, the characteristics of the developed torque and speed were investigated under different gearing levels using magnetic gearing technique, the efficiency shows improvements in comparison to the basic motor.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128766756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analysis and simulation of quasi-resonant inverter for induction heating applications 感应加热类谐振逆变器的分析与仿真

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934831

O. Pop

引用次数: 1

Fundamental study on voltage stability of induction generators for wind power generation — Voltage-power curves for various types of generators 风力发电用感应发电机电压稳定性的基础研究——不同类型发电机的电压-功率曲线

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934656

Kiyoto Kuraishi, T. Nanahara

{"title":"Fundamental study on voltage stability of induction generators for wind power generation — Voltage-power curves for various types of generators","authors":"Kiyoto Kuraishi, T. Nanahara","doi":"10.1109/UPEC.2014.6934656","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934656","url":null,"abstract":"Large-scale integration of wind power generation causes various concerns for its impacts on an electricity grid. One of the concerns is voltage stability of a power system because most wind power generators use an induction generator and the generator does not basically have a voltage supporting ability. Meanwhile, one of the authors has observed a phenomenon that limited variable speed machines kept a stable operation after a system disturbance with voltage level lower than that in a normal condition. However, operation of an induction generator in a low voltage solution is generally considered to be unstable. This paper analyzes voltage stability of wind power generations using the voltage-power curves (nose curves). Sensitivity studies are conducted for line impedance of fixed speed machine, for external resistance of a limited variable speed machine and for power factor of a variable speed machine. The results suggest the possibility for stable operation of a limited variable speed machine at a low voltage solution by controlling its external resistance.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128573283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The value of PV electricity generation for domestic properties in the West of England 英格兰西部家用物业的光伏发电价值

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934652

Xiayun Duan, M. Redfern

引用次数: 3

Improving distribution network state estimation by means of Phasor Measurement Units 利用相量测量单元改进配电网状态估计

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934710

Amanda E. Kahunzire, K. Awodele

引用次数: 12

Impact of controlled charging of an electrical vehicle fleet on business efficiency 电动汽车控制充电对商业效率的影响

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934708

E. Plota, C. Rehtanz

引用次数: 4

Small signal stability performance of power system during high penetration of wind generation 风电高侵彻时电力系统的小信号稳定性能

2014 49th International Universities Power Engineering Conference (UPEC) Pub Date : 2014-10-23 DOI: 10.1109/UPEC.2014.6934766

H. Iswadi, D. Morrow, R. Best

{"title":"Small signal stability performance of power system during high penetration of wind generation","authors":"H. Iswadi, D. Morrow, R. Best","doi":"10.1109/UPEC.2014.6934766","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934766","url":null,"abstract":"The small signal stability of interconnected power systems is one of the important aspects that need to be investigated since the oscillations caused by this kind of instability have caused many incidents. With the increasing penetration of wind power in the power system, particularly doubly fed induction generator (DFIG), the impact on the power system small signal stability performance should be fully investigated. Because the DFIG wind turbine integration is through a fast action converter and associated control, it does not inherently participate in the electromechanical small signal oscillation. However, it influences the small signal stability by impacting active power flow paths in the network and replacing synchronous generators that have power system stabilizer (PSS). In this paper, the IEEE 39 bus test system has been used in the analysis. Furthermore, four study cases and several operation scenarios have been conducted and analysed. The selective eigenvalue Arnoldi/lanczos's method is used to obtain the system eigenvalue in the range of frequency from 0.2 Hz to 2 Hz which is related to electromechanical oscillations. Results show that the integration of DFIG wind turbines in a system during several study cases and operation scenarios give different influence on small signal stability performance.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125584962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7