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2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings最新文献

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The transfer characteristic of partial discharge propagation along power transformer winding based on vector fitting 基于矢量拟合的局部放电沿电力变压器绕组传播的传递特性
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338069
L. Yunpeng, Lu Fangcheng, Li Chengrong
{"title":"The transfer characteristic of partial discharge propagation along power transformer winding based on vector fitting","authors":"L. Yunpeng, Lu Fangcheng, Li Chengrong","doi":"10.1109/DRPT.2004.1338069","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338069","url":null,"abstract":"Partial discharge pulse is the basic information for power transformer insulation fault diagnosis, but it will be distorted during the propagating course in the transformer winding. In this paper, the transfer characteristic of partial discharge pulse propagation along its winding is investigated based on vector fitting. The frequency response curve of the winding has been tested. Vector Fitting using rational function consisting of real poles as well as complex conjugate poles and zeros to fitting the frequency response based on tested data. Then the transfer function of the winding is obtained by this way. It can remove the aberration, which caused by the partial discharge pulse propagation in transformer winding. The method is simple and effective. Its efficiency is verified by typical partial discharge measuring.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121109882","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
Control theory application in power market stability analysis 控制理论在电力市场稳定性分析中的应用
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338046
Youfei Liu, Y. Ni, F. Wu
{"title":"Control theory application in power market stability analysis","authors":"Youfei Liu, Y. Ni, F. Wu","doi":"10.1109/DRPT.2004.1338046","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338046","url":null,"abstract":"This paper proposes a new framework to model the system dynamics and study the system stability for the quantity bidding competition in power market. From the viewpoint of control theory, the quantity bidding competition is modeled as close-loop dynamic system, where market price is the system feedback signal. Based on the objective of maximizing individual profit in a shot-game, a general dynamic process is given to describe supplier's adjustment behavior, which can be used to model all classical bidding and CV-based bidding strategies. With the application of control theory, sufficient stability conditions and market equilibrium is presented. Computer test results support the analytic conclusion very well.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126648826","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: 11
Inter-area damping control of STATCOM using wide-area measurements 采用广域测量的STATCOM区域间阻尼控制
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338497
Xiaorong Xie, Jian Li, Jinyu Xiao, Yingduo Han
{"title":"Inter-area damping control of STATCOM using wide-area measurements","authors":"Xiaorong Xie, Jian Li, Jinyu Xiao, Yingduo Han","doi":"10.1109/DRPT.2004.1338497","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338497","url":null,"abstract":"This paper proposed an approach to combining the recently developed FACTS and WAMS technologies to damp inter-area low-frequency oscillations and enhance transfer capability of interconnected power systems. The approach includes three steps: Firstly we use PRBS probing technique and N4SID to obtain a reduced-order model of the studied system. Then wide-area measurements are employed as feedback signals and an optimal damping control loop is designed via LQR approach for the FACTS controller in a multi-machine environment. Finally with communication delays of WAMS considered, a least square prediction algorithm is developed to derive instant feedback quantities, and thus make the proposed control practicable in real systems. To verify the effectiveness of the proposed approach, case study is fulfilled using a two-area four-machine power system with STATCOM, one of the most promising FACTS controllers, connected to the inter-area transmission. Extensive digital simulation results demonstrate its validity in damping inter-area power oscillation and enhancing transfer capability along long-distance tie lines.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"297 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114442053","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: 17
Intelligent method for protection coordination 智能保护协调方法
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338525
C. So, K. Li
{"title":"Intelligent method for protection coordination","authors":"C. So, K. Li","doi":"10.1109/DRPT.2004.1338525","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338525","url":null,"abstract":"This paper presents the application of artificial intelligence in protection coordination. It can substantially improve the coordination of protection relay operations. The relay settings and coordination requirements are formulated into a set of constraint equations and an objective function is developed to manage the relay settings by the time coordination method (TCM). Modified evolutionary programming (MEP) is employed to search for the optimum relay settings with maximum satisfaction of coordination constraints. The results show that the intelligent method for protection coordination can optimize the protection relay settings, reduce relay mis-coordinated operations, and increase supply reliability. The efficiency of TCM taking the fault current changes into consideration is also discussed in this paper.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129770360","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: 29
The role of investments in the regulated electricity distribution business in Finland 投资在芬兰受监管的配电业务中的作用
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338001
S. Viljainen, L. Lassila, S. Honkapuro, J. Partanen
{"title":"The role of investments in the regulated electricity distribution business in Finland","authors":"S. Viljainen, L. Lassila, S. Honkapuro, J. Partanen","doi":"10.1109/DRPT.2004.1338001","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338001","url":null,"abstract":"This paper focuses on the role of investments in the regulated electricity distribution business in Finland. It introduces a method to handle investments in regulation so that sufficient network investments are encouraged but overinvestments are limited. This means that electricity distribution companies are enabled to keep their networks in proper technical shape whereas the possibility of over charge investments on end-customers is limited.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121425729","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
Fuzzy logic based static synchronous series compensator (SSSC) for transient stability improvement 基于模糊逻辑的静态同步串联补偿器(SSSC)的暂态稳定性改进
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338500
V. Chandrakar, A. Kothari
{"title":"Fuzzy logic based static synchronous series compensator (SSSC) for transient stability improvement","authors":"V. Chandrakar, A. Kothari","doi":"10.1109/DRPT.2004.1338500","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338500","url":null,"abstract":"A fuzzy logic approach is applied to coordinate two control inputs: in phase voltage and quadrature voltage control of static synchronous series compensator (SSSC) to improve the transient stability of a SMIB system. The main aim of the paper is to analyze the effect of coordinated fuzzy logic based SSSC on real power flow, damping of first swing and to improve transient stability margin of a single machine infinite bus system. The two different controllers namely; [i] Conventional power oscillation damping controller of SSSC (NFLC), [ii] Fuzzy logic based coordinated controller of SSSC (CFLC) are considered for their comparative studies. Fuzzy rules for the controller are based on measurable components of the transmission line. Simulation results show that the proposed fuzzy logic based controller provides satisfactory performance in terms of increase in power transfer capability, improved damping of transients and transient stability margin of the test system. The performance of the controller is validated using advance software MATLAB.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127972120","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: 24
The ANN of UMCP forecast based on developed ICA 基于ICA的UMCP预测人工神经网络
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338073
Zheng Hua, Zhang Lizi, Xie Li, Shen Jingna
{"title":"The ANN of UMCP forecast based on developed ICA","authors":"Zheng Hua, Zhang Lizi, Xie Li, Shen Jingna","doi":"10.1109/DRPT.2004.1338073","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338073","url":null,"abstract":"This paper focuses on the relatively new application of independent component analysis (ICA) on the forecast problem of unconstrained market clearing price (UMCP) in the day-ahead spot market. The property extraction of UMCP and UMCP forecast model based improved ICA are presented in order to not only decrease the feature dimensions and the complexity of model, but also enhance the model practicability and forecast accuracy. Firstly, the whitened factor data as mixed input signals is extracted by improved fixed-point algorithm. Then artificial neural network (ANN) forecast model is built on the basis of the extracted feature samples and used to forecast UMCP. The UMCP data of America California during 1998 and 1999 is also applied to the algorithm of this paper, whose result has verified the validity of the model.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127889778","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
Stability impacts on cross-border electricity trading 稳定性对跨境电力交易的影响
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338048
W. So, T. Chung, C. Tse
{"title":"Stability impacts on cross-border electricity trading","authors":"W. So, T. Chung, C. Tse","doi":"10.1109/DRPT.2004.1338048","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338048","url":null,"abstract":"A major objective of cross-border electricity trading is to introduce competitive market structure with market transparency in order to avoid economic inefficiencies. Theoretically economists expect competitive behaviour in the deregulated electricity market would provide benefits on the economic aspects. However, it may also generate technical problems on the security and stability of the interconnected electricity system. This paper presents some preliminary studies carried out to investigate possible stability problems after the opening of electricity market in the region.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133948370","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
Price responsiveness in the new electricity market: a Singapore experience 新电力市场的价格响应:新加坡经验
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338466
Youngho Chang, T. H. Tay
{"title":"Price responsiveness in the new electricity market: a Singapore experience","authors":"Youngho Chang, T. H. Tay","doi":"10.1109/DRPT.2004.1338466","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338466","url":null,"abstract":"When electricity prices are allowed to fluctuate freely the price could transmit valuable market information and send the right signal to rate-payers for consumption and to generation companies for production and investment. This study briefly discusses the deregulation of the Singapore electricity sector before employing a log-linear form for estimating the coefficient of price-quantity relationships in the electricity demand. Two-stage least squares regression method is used and the estimation would yield the elasticity of demand. The more elastic is the demand, the more consumption efficient is the new electricity market. This is because consumers who are allowed to choose their retailers or purchase electricity on their own behalf will be able to choose the best package and also to make more efforts to respond to price fluctuations. The analysis reveals that the market would bring about some consumption-efficiency gains. However, more research needs to be done to quantify the extent of the gains.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"2418 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130755136","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
Standard market design for ISO New England wholesale electricity market: an overview ISO新英格兰批发电力市场的标准市场设计:概述
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338465
Kwok W. Cheung
{"title":"Standard market design for ISO New England wholesale electricity market: an overview","authors":"Kwok W. Cheung","doi":"10.1109/DRPT.2004.1338465","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338465","url":null,"abstract":"This paper discusses the standard market design (SMD) for ISO New England electricity market. SMD comprises a congestion management methodology for revealing and assigning costs of supplying electricity across limited transmission facilities and a two-part market settlement structure consisting of a \"day-ahead\" and a \"day-of\" settlement that allows for greater financial certainty to market participants. Day-ahead market, real-time market, and financial transmission rights (FTR) auction are the key market elements of SMD. Based on the problem of security-constrained economic dispatch, an extended LMP model with transmission loss consideration will be presented. Details of functional design for the multi-settlement system and the FTR auction system will be discussed.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130861981","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: 31
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