2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262)最新文献_第9页

Security constrained optimal power flow for the evaluation of transmission capability on Korea electric power system 韩国电力系统输电能力评估的安全约束最优潮流

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970224

D. Hur, Jong-keun Park, B.H. Kim, K. Son

{"title":"Security constrained optimal power flow for the evaluation of transmission capability on Korea electric power system","authors":"D. Hur, Jong-keun Park, B.H. Kim, K. Son","doi":"10.1109/PESS.2001.970224","DOIUrl":"https://doi.org/10.1109/PESS.2001.970224","url":null,"abstract":"This paper presents an algorithm for the parallel solution of the security constrained optimal power flow (SCOPF) problem in a decentralized framework, consisting of regions, using a price-based mechanism that models each region as an economic unit. We first solve the distributed optimal power flow (OPF) problem to determine the maximum secure simultaneous transfer capability of each tie-line between adjacent regions by taking only the security constraints imposed on the tie-lines into account. In this study, the line outage distribution factors (LODF) calculated at the current state are used to formulate the appended constraints. Once the secure transfer capability of each tie-line is determined, the maximum secure transfer capability of tie-lines joining two regions is solved in such a way that the transmission system can also stay within limits in the event of turning generation units off when they are not needed. A description on the inclusion of security constraints with distributed optimal power flow algorithm is given, followed by case studies for Korea power system.","PeriodicalId":273578,"journal":{"name":"2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115039066","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: 28

Development of digital distance relaying algorithm in combined transmission lines with underground power cables 输电线路与地下电缆组合中数字距离中继算法的研究

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970108

J.B. Lee, C. Ha, C. Jung

{"title":"Development of digital distance relaying algorithm in combined transmission lines with underground power cables","authors":"J.B. Lee, C. Ha, C. Jung","doi":"10.1109/PESS.2001.970108","DOIUrl":"https://doi.org/10.1109/PESS.2001.970108","url":null,"abstract":"This paper presents a digital distance relaying algorithm in combined transmission lines with underground power cables. When underground power cables are used as part of a transmission line, the design and setting of the protective relay will have to consider the different impedance characteristics because of the configuration characteristics of the cables. A power cable system consists of the conductor, a sheath, several kinds of joints, grounding types of such joints, cable covering protection units and grounding wires with resistance. Simulation for an actual complex transmission line with 154 kV XLPE cables was carried out to develop a correct distance relaying algorithm using modeling which was, in detail, established using EMTP and ATP Draw. This paper describes the accurate calculation algorithm of line impedance with a compensation factor at the relay point as well as a method to discriminate the fault section between both sections when a single line-to-ground fault occurs. Simulation results reveal that the accuracy of the line impedance obtained by the proposed algorithm has been increased compared with the impedance obtained using the general distance relaying algorithm.","PeriodicalId":273578,"journal":{"name":"2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115648070","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

Evaluation of retail electricity supply contracts in deregulated environment 放松管制环境下零售电力供应合同的评价

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970205

T. Niimura, M. Dhaliwal, K. Ozawa

引用次数: 6

Decision support tools for trading in deregulated energy systems 解除管制的能源系统交易的决策支持工具

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970056

Chen-Ching Liu

引用次数: 3

A new multiobjective evolutionary algorithm for environmental/economic power dispatch 一种新的环境经济电力调度多目标进化算法

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970254

A.A. Abido

{"title":"A new multiobjective evolutionary algorithm for environmental/economic power dispatch","authors":"A.A. Abido","doi":"10.1109/PESS.2001.970254","DOIUrl":"https://doi.org/10.1109/PESS.2001.970254","url":null,"abstract":"In this paper, a new multiobjective evolutionary algorithm for environmental/economic power dispatch (EED) optimization problem is presented. The EED problem is formulated as a nonlinear constrained multiobjective optimization problem with both equality and inequality constraints. A new nondominated sorting genetic algorithm (NSGA) based approach is proposed to handle the problem as a true multiobjective optimization problem with competing and noncommensurable objectives. The proposed approach employs a diversity-preserving technique to overcome the premature convergence and search bias problems and produce a well-distributed Pareto-optimal set of nondominated solutions. A hierarchical clustering technique is also imposed to provide the decision maker with a representative and manageable Pareto-optimal set. Several optimization runs of the proposed approach are carried out on a standard IEEE test system. The results demonstrate the capabilities of the proposed NSGA based approach to generate the true Pareto-optimal set of nondominated solutions of the multiobjective EED problem in one single run. Simulation results with the proposed approach have been compared to those reported in the literature. The comparison shows the superiority of the proposed NSGA based approach and confirms its potential to solve the multiobjective EED problem.","PeriodicalId":273578,"journal":{"name":"2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123446661","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: 648

Roles of intelligent systems in power quality monitoring: past, present, and future 智能系统在电能质量监测中的作用:过去、现在和未来

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970216

A. McEachern

引用次数: 23

Robust design of a damping controller for static VAr compensators in power systems 电力系统静态无功补偿器阻尼控制器的鲁棒设计

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970150

Xuechun Yu, M. Khammash, V. Vittal

引用次数: 30

Compensator rating for radial distribution lines 径向配电线路的补偿器额定值

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.969984

F. Rossouw, H.J. Beukes

引用次数: 0

Proposal on the conversion of room temperature thermal energy into useful form 关于将室温热能转化为有用形式的建议

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970273

S. Gim

引用次数: 2

Progress in direct carbonate fuel cell for distributed generation 分布式发电用直接碳酸盐燃料电池的研究进展

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI: 10.1109/PESS.2001.970131

H. Maru, M. Farooque, J. Leitman

引用次数: 2