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2009 IEEE Power & Energy Society General Meeting最新文献

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An Adaptive mimic filter — Based algorithm for the detections of CT saturations 基于自适应模拟滤波的CT饱和度检测算法
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275886
C. Yu, Zong-Sian Wu, Joe-Air Jiang
{"title":"An Adaptive mimic filter — Based algorithm for the detections of CT saturations","authors":"C. Yu, Zong-Sian Wu, Joe-Air Jiang","doi":"10.1109/PES.2009.5275886","DOIUrl":"https://doi.org/10.1109/PES.2009.5275886","url":null,"abstract":"An adaptive mimic filter-based algorithm for detecting the saturation of Current Transformers (CTs) has been presented and implemented in this paper. First, an adaptive method was developed for obtaining the line impedance of a digital mimic filter. The variations of the obtained line impedance were then used to detect the CT saturations. By using the proposed algorithm, the saturation period of a current waveform can be accurately detected. This paper finally utilized the MATLAB/SIMULINK software and a DSP-based environment to verify the proposed algorithm. Test results show the proposed algorithm can accurately detect the CT saturations.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"24 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120890069","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
Induction motor loads and voltage stability assessment using PV curves 利用PV曲线评估感应电机负载及电压稳定性
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5276032
L.M. Vargas, J. Jatskevich, J. Martí
{"title":"Induction motor loads and voltage stability assessment using PV curves","authors":"L.M. Vargas, J. Jatskevich, J. Martí","doi":"10.1109/PES.2009.5276032","DOIUrl":"https://doi.org/10.1109/PES.2009.5276032","url":null,"abstract":"Knowledge of the load composition and characteristics, such as corresponding PV curves, are necessary tools for the voltage stability analysis. This paper investigates small industrial induction motors that are operated under different mechanical load conditions. Experimental tests were performed to determine the system's PV characteristics and assess the voltage stability under different loading composition. The load characteristics of induction motor directly connected to the grid, as well as operated with a variable frequency drive (VFD) in open and closed loop speed control configurations were investigated experimentally. An equivalent exponential load model was identified for each configuration. The paper compares the constant power loads with the induction motor loads and shows that the VFD will have a pronounced effect on the load characteristic, which in turns affects the voltage stability.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120954703","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: 10
Investigation on the phase selection criterion based on improved modular fault component 基于改进模块化故障分量的选相准则研究
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275596
Xiangning Lin, Zhimin Zhao, Z. Bo
{"title":"Investigation on the phase selection criterion based on improved modular fault component","authors":"Xiangning Lin, Zhimin Zhao, Z. Bo","doi":"10.1109/PES.2009.5275596","DOIUrl":"https://doi.org/10.1109/PES.2009.5275596","url":null,"abstract":"Under the conditions of the various system parameters and fault types, the performance of the phase selector based on modular fault component are analyzed. Compared with the phase selector based on difference of two phase currents, this phase selector is better in terms of overall performance. However, this phase selector cannot achieve theoretical selectivity for a real fault. Furthermore, this phase selector may lack of sensitivity where the relay is equipped on the side of weak source. So an improved scheme is presented to make up for above shortcomings, and the EMTP simulation has shown that the improved scheme is effective.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121175763","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
GENCO's long term expansion model in a competitive electricity market GENCO在竞争激烈的电力市场中的长期扩张模式
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275797
D. Hernández-González, G. Gutiérrez-Alcaraz
{"title":"GENCO's long term expansion model in a competitive electricity market","authors":"D. Hernández-González, G. Gutiérrez-Alcaraz","doi":"10.1109/PES.2009.5275797","DOIUrl":"https://doi.org/10.1109/PES.2009.5275797","url":null,"abstract":"Liberalization and privatization in the electricity industry have led to increased competition. At the same time, generation companies are now exposed more than ever to risk and uncertainties which they cannot pass through to their customers in the form price increases as in a regulated environment. The central challenge for electricity generators is to maximize profits under uncertainty. But this optimization is not possible without a thorough understanding of long term expansion planning and competitors' behavior. In this paper a long-term expansion model (excluding hydroelectric plants) for a generation company operating in the deregulated electricity industry is presented. The model takes into account uncertainties such as electricity demand, fuel cost, pricing, expansion rate and investment under different scenarios and time periods. Numerical examples are provided.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116258525","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
Transmission expansion and pricing in Colombia: An appraisal of current practices 哥伦比亚输电扩张和定价:对当前做法的评价
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275428
H. Salazar, Luis J. Zuluaga-Lopez, R. Leon
{"title":"Transmission expansion and pricing in Colombia: An appraisal of current practices","authors":"H. Salazar, Luis J. Zuluaga-Lopez, R. Leon","doi":"10.1109/PES.2009.5275428","DOIUrl":"https://doi.org/10.1109/PES.2009.5275428","url":null,"abstract":"This paper summarizes the current practices of transmission expansion and pricing in Colombia. Transmission expansion in Colombia is formulated by a central governmental agency that is commissioned to establish the required transmission enhancements. The commission consolidates all the needs based on economic growth and the current regulation into a single plan. We review how the single plan is elaborated and consolidated. Assumptions and institutional arrangements are analyzed in order to establish how the decision making process is affected by current polices. Transmission pricing is also assessed in this paper in order to have a comprehensive overview of the power transmission sector in Colombia.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113977098","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: 3
Modified augmented hopfield neural network for optimal thermal unit commitment 改进的增强hopfield神经网络的最优热机组承诺
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5260222
M. Kamh, A. Abdelaziz, S. Mekhamer, M. Badr
{"title":"Modified augmented hopfield neural network for optimal thermal unit commitment","authors":"M. Kamh, A. Abdelaziz, S. Mekhamer, M. Badr","doi":"10.1109/PES.2009.5260222","DOIUrl":"https://doi.org/10.1109/PES.2009.5260222","url":null,"abstract":"This paper develops a novel solution methodology of the Thermal Unit Commitment Problem (TUCP) using modified Augmented Hopfield Network (AHN) with enhanced performance. The modifications are mandatory to eliminate the error that conventional AHN structure is reported to suffer from. This error originates from the mapping process, the corner stone in using AHN as an optimization tool. A new solution algorithm is developed by combining the AHN with the proposed modifications. In order to verify the effectiveness of the new algorithm, it is applied and tested to some examples reported in literature and the solution is then compared with that obtained by counterpart Artificial Intelligence (AI) techniques. Unlike other AI techniques, the solution obtained using the modified AHN is more optimal and satisfying all the operating constraints.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124270552","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
Interfacing techniques for simulation tools 模拟工具的接口技术
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275553
V. Dinavahi, M. Steurer, K. Strunz, J. Martinez
{"title":"Interfacing techniques for simulation tools","authors":"V. Dinavahi, M. Steurer, K. Strunz, J. Martinez","doi":"10.1109/PES.2009.5275553","DOIUrl":"https://doi.org/10.1109/PES.2009.5275553","url":null,"abstract":"This panel paper presents an overview of techniques to address: (a) the interfacing of an electromagnetic transient simulation program with a transient stability simulation program, (b) interfacing of an electromagnetic transient simulation program with an electromagnetic field simulation program, and (c) interfacing issues of a real-time digital simulator. The salient features of each type of simulation program are discussed with the highlights on technical challenges for interfacing, and the classification of the various interfacing methods available in the literature is presented.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124512023","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: 3
Using hardware and software studies to teach power-system modeling and analysis 使用硬件和软件研究来教授电力系统建模和分析
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275243
A. Shrestha, R. Cox, Z. Salami, Jason M. Anderson, P. Parikh
{"title":"Using hardware and software studies to teach power-system modeling and analysis","authors":"A. Shrestha, R. Cox, Z. Salami, Jason M. Anderson, P. Parikh","doi":"10.1109/PES.2009.5275243","DOIUrl":"https://doi.org/10.1109/PES.2009.5275243","url":null,"abstract":"The power industry desperately needs talented young engineers. Researchers in the ECE Department at UNC Charlotte (UNCC) have partnered with AREVA to address this issue. Together, we have developed new curricula that tightly integrate theory with practice. This paper describes a three-level approach used in the senior-level electric machines course at UNCC. In this course, students move directly from theory to hands-on exploration to real-world application. Following the first two stages of that process, students are able to model individual components. Using that ability, they then analyze a complete system. The course culminates in a design project focused on the design of a small power system similar to that encountered in a generating station. Specific curriculum examples are discussed, and some feedback on the initial offerings is presented.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124054649","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
Risk analysis of volume cheat strategy in a competitive capacity market 竞争容量市场中容量欺骗策略的风险分析
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275804
D. Feng, Zhao Xu
{"title":"Risk analysis of volume cheat strategy in a competitive capacity market","authors":"D. Feng, Zhao Xu","doi":"10.1109/PES.2009.5275804","DOIUrl":"https://doi.org/10.1109/PES.2009.5275804","url":null,"abstract":"Capacity market provides additional revenue stream for the power suppliers. In a capacity-energy combined market environment, suppliers have incentives to deliberately over-offer their capacities in the capacity market while bid very high price in the energy and ancillary markets to avoid operation. This paper analyzes the risks and profits of this capacity-over-offer behavior, and develops a method for computing non-operable penalty level which can prevent the capacity-over-offer behavior. It is found that the effective penalty level is highly correlated with the stochastic characteristics of the supplier's profit streams and attitudes towards risk. Two types of suppliers are identified with high potential of capacity cheating behavior in the analysis. The methodology and the results are potentially useful for regulating participants' misbehaviors and enhancing the operation security in a capacity-energy market environment.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127591590","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: 3
A performance comparison of probabilistic techniques for electricity market simulation 电力市场模拟的概率技术性能比较
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275873
P. Fonseka, Z. Dong, T. K. Saha
{"title":"A performance comparison of probabilistic techniques for electricity market simulation","authors":"P. Fonseka, Z. Dong, T. K. Saha","doi":"10.1109/PES.2009.5275873","DOIUrl":"https://doi.org/10.1109/PES.2009.5275873","url":null,"abstract":"This paper compares the performances of two probabilistic techniques, namely (i) two-point estimate (2PE) method and (ii) Monte Carlo (MC) method, when modelling the uncertainties in market simulation. The demand, bid price, and capacity offer quantities are modelled as uncertain variables. A generalized zonal market model has been analysed with relaxed generation and network representation. A simplified version of National Electricity Market (NEM) of Australia has been studied and results are discussed.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126245930","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
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