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IEEE PES Power Systems Conference and Exposition, 2004.最新文献

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An auction to procure capacity in a load pocket 一场拍卖，以获得装载口袋的容量
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397689
J. Bowring, P. Cramton, S. Stoft
{"title":"An auction to procure capacity in a load pocket","authors":"J. Bowring, P. Cramton, S. Stoft","doi":"10.1109/PSCE.2004.1397689","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397689","url":null,"abstract":"This paper presents a novel feature of the use of financial transmission rights (FTR) auction that is used to solve market power and other problems. The goal is to identify the least-cost resources to provide the level of required reliability in the load pocket via the purchase of additional transmission capability or generation capacity. The design complications confront are lump resources, market power in the auction and in the load pocket after auction and competition between resources: transmission lines, baseload generators and peakers. Three auctions have been suggested to solve this problem but at the end FTR subsidy auction approach with bottom capped has proved advantageous over the other two.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117280498","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
Applications of fuzzy inference mechanisms to power system relaying 模糊推理机制在继电保护中的应用
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397443
O. Youssef
{"title":"Applications of fuzzy inference mechanisms to power system relaying","authors":"O. Youssef","doi":"10.1109/PSCE.2004.1397443","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397443","url":null,"abstract":"Most transmission line protective schemes are based on deterministic computations on a well defined model of the system to be protected. This results in difficulty because of the complexity of the system model, the lack of knowledge of its parameters, the great number of information to be processed, and the difficulty in taking into consideration any system variation as the rules are fixed. The application of fuzzy logic for exploring complex, nonlinear systems, diagnosis systems and other expert systems, particularly when there is no simple mathematical model to be performed, provides a very powerful and attractive solution to classification problems. In this paper, a feasibility study on the application of different fuzzy reasoning mechanisms to power system relaying algorithms is conducted. Those mechanisms are namely, Mamdani's mechanism, Larsen's mechanism, Takagi-Sugeno's mechanism, and Tsukamoto mechanism. A comparative analysis on the application of these fuzzy inference mechanisms to a novel fault detection and phase selection technique on EHV transmission lines is reported. The proposed scheme utilises only the phase angle between two line currents for the decision making part of the scheme. A sample three-phase power system was simulated using the EMTP software. An online wavelet-based preprocessor stage is used with data window of 10 samples (based on 4.5 kHz sampling rate and 50 Hz power frequency). The performance of the proposed model was extensively tested in each case of fuzzy inference mechanism using the MATLAB software. The advantages and disadvantages of each mechanism are reported and compared together. Some of the test results are included in this paper.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116479101","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: 23
A probabilistic approach of Hirschman-Herfindahl Index (HHI) to determine possibility of market power acquisition 用赫希曼-赫芬达尔指数(HHI)的概率方法来确定市场支配力获得的可能性
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397699
Anil Kanagala, Mandhir Sahni, Siddharth Sharma, Bei Gou, T. JunYu
{"title":"A probabilistic approach of Hirschman-Herfindahl Index (HHI) to determine possibility of market power acquisition","authors":"Anil Kanagala, Mandhir Sahni, Siddharth Sharma, Bei Gou, T. JunYu","doi":"10.1109/PSCE.2004.1397699","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397699","url":null,"abstract":"This paper presents a probabilistic approach of the application of the Hirschman-Herfindahl Index (HHI) for the estimation of market concentration. A region of uncertainty in terms of the HHI is defined, the probability of any market participant acquiring market power is estimated, and a trend for this probability with the changes of HHI is identified by the analytical approach. The analysis is supported by simulation results of different markets with various numbers of participants. The probability of any market participant acquiring market power is seen to rise exponentially until it saturates at the upper limit.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116314963","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
Definition and digital algorithms of dielectric loss factor for condition monitoring of high voltage power equipment with harmonics emphasis 以谐波为重点的高压电力设备状态监测介质损耗因子的定义及数字算法
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1049/IP-GTD:20045043
Qingmin Li, T. Zhao
{"title":"Definition and digital algorithms of dielectric loss factor for condition monitoring of high voltage power equipment with harmonics emphasis","authors":"Qingmin Li, T. Zhao","doi":"10.1049/IP-GTD:20045043","DOIUrl":"https://doi.org/10.1049/IP-GTD:20045043","url":null,"abstract":"Experience and applications of the currently available methods for on-line monitoring and diagnostics of high voltage power apparatus is briefly reviewed. Based on the dielectric physics, a new definition of dielectric loss factor with harmonics emphasis is proposed to evaluate the operational conditions of power apparatus on a more reasonable basis, along with corresponding digitised algorithms. Two approaches, namely the decoupling algorithm and the approximating algorithm, are presented to implement the methodologies with the new definition of dielectric loss factor. The impacts of background noise and power frequency fluctuation on estimation accuracy are analysed by computer simulations showing better application qualities of the approximating algorithm than the decoupling one. A comprehensive strategy of simultaneous monitoring of the sum current, dielectric loss factor, resistive current and capacitive current is recommended to give an effective assessment and diagnosis of both the insulation degradation and heat behaviours.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116441951","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
Promotion of energy-efficiency in the electricity sector in restructuring markets-the Portuguese case 在重组市场中提高电力部门的能源效率——葡萄牙的例子
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397624
A.C. Lopes, A. D. de Almeida
{"title":"Promotion of energy-efficiency in the electricity sector in restructuring markets-the Portuguese case","authors":"A.C. Lopes, A. D. de Almeida","doi":"10.1109/PSCE.2004.1397624","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397624","url":null,"abstract":"This paper analyses demand-side energy efficiency promotion mechanisms compatible with the ongoing electricity market restructuring in the European Union. Three main strategies are presented. The first one is based in the present regulatory framework, the second one consists in the implementation of a public benefit charge, and the third one is related with setting up an energy certificate (white certificates) competitive market. These strategies essentially rely on the definition of financial and market-transformation mechanisms, to promote energy efficiency in the demand side. Environmental externalities, the Kyoto emission targets, and the implementation of a European Union Directive on the promotion of energy efficiency and energy services are also considered during the mechanism design, using Portugal as a case study for its application.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115039528","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
Real-time simulation for relay performance evaluation 继电器性能评估的实时仿真
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397607
R. Das
{"title":"Real-time simulation for relay performance evaluation","authors":"R. Das","doi":"10.1109/PSCE.2004.1397607","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397607","url":null,"abstract":"With the introduction of high-speed relaying systems, the need for extensive testing of these systems for different fault and abnormal conditions has become more important, to ensure the security and dependability of the electric power systems. Testing of relays can be summarized into three groups: steady state, dynamic and transient. While the first two types are performed during bench testing, they are not adequate for performance evaluation of subcycle modern relays. Transient testing is performed for verification of relay performance under transient conditions of power system to address such requirement. ABB has been using real-time simulations of power systems, for relay performance evaluation, for around seventy years in the US. This paper discusses the methodology employed for real-time simulations of power systems with different technology, with specific focus on the state-of-the-art real-time digital simulator from EDF. Specific case study related to the performance evaluation of a line relay system is discussed in this paper.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124455328","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: 4
Automatic vacuum capacitor switch with modified digital filter design for enhanced speed and power optimization 自动真空电容开关与改进的数字滤波器设计，提高速度和功率优化
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397446
P. Harish, L.A. Basha, G. Prashant
{"title":"Automatic vacuum capacitor switch with modified digital filter design for enhanced speed and power optimization","authors":"P. Harish, L.A. Basha, G. Prashant","doi":"10.1109/PSCE.2004.1397446","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397446","url":null,"abstract":"A high-speed microprocessor based automatic vacuum capacitor switch with a modified digital filter design using distributed arithmetic has been designed in this paper. The automation trends particularly the automatic vacuum capacitor switch has helped ameliorate the power factor essentials and automatically triggered to close when the line current exceeds rated value. Microprocessor relays use digital filters to extract only the fundamental and attenuate harmonics. To provide optimum speed characteristics a distributed arithmetic based filter design in the microprocessor controller, which not only enhances filtering speed but additionally enables lower power consumption at the cost of area has been introduced. The result is a unified description that describes a digital filter structure down to the bit level.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125246092","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
Regional ancillary services procurement in simultaneous energy/reserve markets 同步能源/储备市场的区域辅助服务采购
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397467
T. Wu, G. Angelidis, Z. Alaywan, A. Papalexopoulos
{"title":"Regional ancillary services procurement in simultaneous energy/reserve markets","authors":"T. Wu, G. Angelidis, Z. Alaywan, A. Papalexopoulos","doi":"10.1109/PSCE.2004.1397467","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397467","url":null,"abstract":"Ancillary services are essential to the reliability and security of power system operation in any competitive electricity market environment. Procurement of ancillary services must take into account effective use of the capacity under emergency conditions, delivery time, transmission limitations, and local area requirements. Regional procurement of ancillary services is an approach that results in effective distribution of reserves and ensures continuous reliability in the event of a contingency occurring anywhere in the system. However, most ISOs procure and price ancillary services based on the least-cost service with little regard to zonal dispersion. In general, such an approach is not sufficient to ensure continuous reliability and security of the power system This paper presents a new methodology and numerical examples for procuring and pricing ancillary services on a regional basis, with an explicit representation of imports in a simultaneous energy/reserve market environment.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124087721","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: 13
Nodal price uncertainty analysis considering random failures and elastic demand 考虑随机失效和弹性需求的节点价格不确定性分析
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397524
Y.X.P. Wang, Y. Ding
{"title":"Nodal price uncertainty analysis considering random failures and elastic demand","authors":"Y.X.P. Wang, Y. Ding","doi":"10.1109/PSCE.2004.1397524","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397524","url":null,"abstract":"The introduction of competition in the electric power industry and customer choices on its reliability and price have changed the pricing mechanism. Uniform price used in conventional power system has been replaced by nodal prices in a deregulated power system. This paper investigated the price uncertainty caused by random failures and customer response. The expected nodal prices are used to represent the price uncertainty. The effect of customer response on nodal price is considered using elastic demand. The results of IEEE-RTS are presented.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"297 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128575762","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
The optimum distribution characteristics of active power among power plants in complex power system 复杂电力系统中各电厂间有功功率的最优分配特性
IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI: 10.1109/PSCE.2004.1397519
N. Islam, N. Zelenokhat, K. Sheikh
{"title":"The optimum distribution characteristics of active power among power plants in complex power system","authors":"N. Islam, N. Zelenokhat, K. Sheikh","doi":"10.1109/PSCE.2004.1397519","DOIUrl":"https://doi.org/10.1109/PSCE.2004.1397519","url":null,"abstract":"In this paper a method for optimum active power distribution among power plants of electrical power system (EPS) has been proposed. The optimum active power distribution among power plants is a ongoing problem. It's very important from economic sight when integrated power system is maintained by different companies. For solving this problem in different contributions usually Lagrange method is used. In order to improve the process of optimization, Lagrange method has been expanded. The paper proposes to accept the changes of system active power losses only to determine the power balance. Partial derivatives with regard to the change of power losses has been implemented for the power of separate transmission lines through which it is transported from remote power plants instead of the total power losses of whole system usually used in Lagrange method. Although distributive characteristics of active power in this paper are determined applying Lagrange method, the use of existing control algorithms for the process of active power dispatch confirms the effectiveness of proposed algorithm. The proposed method can be applied for solving the problem of optimum distribution of active power among power plants of EPS serving by different companies in industrial developed countries as USA, Canada, Japan and Germany.","PeriodicalId":308184,"journal":{"name":"IEEE PES Power Systems Conference and Exposition, 2004.","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128604415","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
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