发布求助
文献互助 智能选刊 最新文献

2012 10th International Power & Energy Conference (IPEC)最新文献

筛选
英文 中文
Frequency Response Analysis to recognize inductance variation in transformer due to internal short circuit 频率响应分析识别变压器内部短路引起的电感变化
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523350
M. Bagheri, M. Naderi, T. Blackburn, Bao Toan Phung, Zhenyu Liu
{"title":"Frequency Response Analysis to recognize inductance variation in transformer due to internal short circuit","authors":"M. Bagheri, M. Naderi, T. Blackburn, Bao Toan Phung, Zhenyu Liu","doi":"10.1109/ASSCC.2012.6523350","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523350","url":null,"abstract":"Transformer diagnosis methods have been introduced and employed to recognize transformer internal defects since many years ago. In terms of mechanical defects in transformers, turn to turn and disc to disc short circuits in transformer windings are considered as one of the main problems in transformer active part. On the other hand, Frequency Response Analysis (FRA) is considered as a robust, sensitive and high accurate method to identify transformer mechanical defects. This study has concentrated on self-inductance variation recognition due to an internal short circuit in transformer using FRA signature. A single phase 11/0.25 kV, 25 kVA transformer has been taken as test object. Frequency response of the test object was recorded for open circuit and short circuit situations. Frequency response alteration in low frequencies caused by short circuit is interpreted through mathematical calculations. Frequency response trace deviation is employed to recognize self-inductance changes due to the internal short circuit.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129397161","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: 14
Assessment of the impact that individual voltage source has on a generator's stability 评估单个电压源对发电机稳定性的影响
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523261
E. Dmitrova, H. Jóhannsson, A. Nielsen
{"title":"Assessment of the impact that individual voltage source has on a generator's stability","authors":"E. Dmitrova, H. Jóhannsson, A. Nielsen","doi":"10.1109/ASSCC.2012.6523261","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523261","url":null,"abstract":"This paper presents an approach for splitting equivalent Thevenin voltage into components induced by each voltage source in the reduced grid. Thevenin equivalent representation of the system is sometimes used for stability assessment of a given generator, where the Thevenin voltage is one of the key variables affecting the stability conditions. Thevenin voltage is formed by components induced by each voltage source in the grid, while depending on topology and system parameters, the impact of these components on the equivalent Thevenin voltage Eth might vary considerably. This paper demonstrates how the impact of individual voltage source to Eth might be defined utilizing system admittance matrix. Knowledge about alternation of Eth, while applying changes to either the admittance matrix or the generators' excitation and torque, gives a promising perspective for determination of effective countermeasures aimed at preventing instability. Suggested approach for Eth decomposition is applied to the IEEE 30 bus test system.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131234090","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: 14
The design of switched reluctance motor variable-speed system based on digital signal controller 基于数字信号控制器的开关磁阻电机调速系统设计
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523291
Guojun Yu, He Cheng, Rui Li, Haowei Chen, Jian Wang, Y. Huo
{"title":"The design of switched reluctance motor variable-speed system based on digital signal controller","authors":"Guojun Yu, He Cheng, Rui Li, Haowei Chen, Jian Wang, Y. Huo","doi":"10.1109/ASSCC.2012.6523291","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523291","url":null,"abstract":"Switched reluctance machine combines the electrical machine theories with power electronics technique and the microprocessor control technique, measurement technique .It has a lot of advantages, such as simple structure, strong structure, high efficiency, wide speed adjusting range, multivariable control. The paper introduces the theory and features of SRM, the composing of SRM drive system and research survey. The paper proves that fuzzy controller has the best effect. Finally, we tested and compared the different strategies on the hardware experiment system, and got the experimental waveforms. It validates that the control strategy is correct. And the SRM drive system has a good static and dynamic performance.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131250608","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: 2
Assessment of effects of capacitor banks on harmonic distortion by a direct Z-bus power flow method 用直接z -母线潮流法评估电容器组对谐波畸变的影响
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523293
Ting-Yen Hsieh, Tsai-Hsiang Chen, Van-Tan Tran
{"title":"Assessment of effects of capacitor banks on harmonic distortion by a direct Z-bus power flow method","authors":"Ting-Yen Hsieh, Tsai-Hsiang Chen, Van-Tan Tran","doi":"10.1109/ASSCC.2012.6523293","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523293","url":null,"abstract":"The effects of shunt capacitor banks on the harmonic distortion in a radial power distribution system have been evaluated and discussed in this paper. To assess the harmonic pollution level, some indices such as the telephone influence factor (TIF), the total demand distortion (TDD) and total harmonic distortion (THD) are introduced first. Modeling of distribution system loads for harmonic studies and a novel algorithm for harmonic power flow are also presented. Four cases considering the placement and deterioration of shunt capacitor banks were examined using a five-bus test system. The results are of value to engineers and experts for planning and designing better power distribution systems with high power quality and system efficiency.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130842772","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
Consumer energy portal and home energy management system for smart grid applications 面向智能电网应用的消费者能源门户和家庭能源管理系统
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523302
Cheah Peng Huat, R. Zhang, H. Gooi, H. Yu, M. K. Foo
{"title":"Consumer energy portal and home energy management system for smart grid applications","authors":"Cheah Peng Huat, R. Zhang, H. Gooi, H. Yu, M. K. Foo","doi":"10.1109/ASSCC.2012.6523302","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523302","url":null,"abstract":"This paper presents a web-based consumer energy portal (CEP) and home energy management system (HEMS) developed in Laboratory for Clean Energy Research (LaCER), School of Electrical & Electronic Engineering in Nanyang Technological University (NTU). The CEP developed will be deployed in NTU campus to provide home users at staff quarters with improved energy services such as electricity billing, outage detection and notification, metering information and energy analysis via websites, distributed generation (DG) aggregation for market participation, home energy management system (HEMS), Time of Use (ToU) pricing scheme selection and demand response management (DRM). A ZigBee based HEMS has been developed with NI-LabVIEW software to take advantage of the CEP. With the CEP and HEMS, home users can manage their energy consumption wisely based on ToU pricing and increase in energy efficiency with the help of the DRM function. Simulation studies were done with the historical data collected from the smart meters installed at staff quarters to show the impact of implementing load shifting technique and incorporating distributed energy resources (DERs) such as Solar Photovoltaic (PV) system and battery storage system (BESS) for noncontestable consumers in NTU.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117223001","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: 30
Multiple-poles multilevel diode-clamped inverter (M2DCI) topology for alternative multilevel converter 备选多电平变换器的多极多电平二极管箝位逆变器(M2DCI)拓扑结构
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523318
G. H. P. Ooi, A. Maswood, A. Venkataraman
{"title":"Multiple-poles multilevel diode-clamped inverter (M2DCI) topology for alternative multilevel converter","authors":"G. H. P. Ooi, A. Maswood, A. Venkataraman","doi":"10.1109/ASSCC.2012.6523318","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523318","url":null,"abstract":"This paper introduces a multiple-poles multilevel diode-clamped inverter (M2DCI) topology. Presented topology is able to synthesis nth-level of output voltage steps with isolated dc voltage source and simple cascaded sub-cell can be easily connected in parallel mode to achieve higher voltage levels. This paper discusses seven-level voltage steps on the output terminal of the inverter. The presented topology provides several merits of low output voltage distortion, low voltage stress and higher voltage levels. The basic structure of seven-level multiple-poles multilevel diode-clamped inverter (7L-M2DCI) topology is to keep the design simple and reduce number of components count as compared with classical seven-level multilevel flying capacitor inverter (7L-MFCI) and seven-level multilevel diode-clamped inverter (7L-MDCI) topologies. Hence, components comparisons of classical MDCI and M2DCI topologies are presented and simple analysis of 7L-M2DCI topology is discussed in this context. To operate effectiveness of 7L-M2DCI topology, a level-shifted pulse width modulation (LS-PWM) technique is presented and simulation results are verified for the operating stages of the proposes 7L-M2DCI converter.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128561526","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: 16
Condition health monitoring of offshore wind turbine based on wireless sensor network 基于无线传感器网络的海上风力机状态健康监测
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523345
Fu Zhixin, Yuan Yue
{"title":"Condition health monitoring of offshore wind turbine based on wireless sensor network","authors":"Fu Zhixin, Yuan Yue","doi":"10.1109/ASSCC.2012.6523345","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523345","url":null,"abstract":"Due to the harsh environment, the maintenance of offshore wind turbines (OWTs) is very difficult and the failure rate is very high. Improving the condition monitoring technologies will be beneficial to promote the performance of OWTs. Motivated by the application advantages of wireless sensor networks (WSNs) in environment monitoring, a wireless network based condition health monitoring system for OWTs is proposed, which is composed of different types of wireless sensor nodes. Sensor nodes are deployed on the key components of OWTs based on the fault feature analysis on the different components. In order to guarantee the reliabilities of information collection and communication of the sensor nodes, the principles of the deployment and communication of the sensor nodes are presented and the cluster-based distributed wireless sensor network topology is adopted to increase the efficiency of the system. An example is given to illustrate the proposed method of the condition health monitoring for OWTs.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128628008","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: 6
OPF computer program for reactive power dispatch 无功调度的OPF计算机程序
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523334
E. C. Castillo
{"title":"OPF computer program for reactive power dispatch","authors":"E. C. Castillo","doi":"10.1109/ASSCC.2012.6523334","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523334","url":null,"abstract":"In this paper the problem of reactive power dispatching in electrical power systems is studied. The problem is treated through optimal power flows (OPF) using an objective function that minimizes real power losses in transmission lines. A computer program that solves OPF was written in Matlab/Octave using the Newton-Raphson method (NR) and quadratic penalties. The employed algorithm is described, and is similar to one used in an ordinary power flow program (PF), therefore being an educational example on how the basic PF analysis is extended to include optimization. Simulations were run using small case studies found in the literature and the results show good agreement compared to those of a commercial simulator.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129337710","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: 2
EV bus system control strategy design with consideration of battery lifetime model 考虑电池寿命模型的电动客车系统控制策略设计
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523266
M. Sasaki, T. Shen
{"title":"EV bus system control strategy design with consideration of battery lifetime model","authors":"M. Sasaki, T. Shen","doi":"10.1109/ASSCC.2012.6523266","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523266","url":null,"abstract":"This paper focuses on the regular route running EV bus, and propose lithium-ion battery management system based on the prediction of on-board battery lifetime. By using the method, combining the battery charge infrastructure and the route operating mode, an optimal EV bus system control strategy is proposed. Finally, simulation results applying the control strategy to various EV Type buses are demonstrated.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129620396","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: 5
Numercial investigation of the thermal fatigue issue in the next generation nuclear power plants 新一代核电站热疲劳问题的数值研究
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523324
Jiyun Zhao, L. Bu
{"title":"Numercial investigation of the thermal fatigue issue in the next generation nuclear power plants","authors":"Jiyun Zhao, L. Bu","doi":"10.1109/ASSCC.2012.6523324","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523324","url":null,"abstract":"Strong temperature fluctuations caused by turbulent mixing of cold and hot fluid streams may occur in the variety of places inside a nuclear power plant. The structural materials subjecting to the strong temperature fluctuations may cause thermal fatigue failure. Since the supercritical fluids are supposed to be used widely in the next generation nuclear power plants, this paper aims at investigating the temperature fluctuation characteristics in a Tee junction using supercritical water as coolant. A three dimensional computational fluid dynamics (CFD) numerical model is developed using commercial software FLUENT. The measures to reduce the temperature fluctuations such as applying porous media and changing the inclined angles are investigated. It is concluded that the porous media can smooth away the fluctuations in the mixing zone region, and the thermal fatigue issue can be improved by changing the inclined angles.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130805898","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信