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PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)最新文献

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EGAT's legacy and the transition towards a competitive electricity market in Thailand EGAT的遗产和泰国向竞争性电力市场的过渡
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.897110
N. Leeprechanon, S. Moorthy, C. Greacen, P. Vongthanet, A. K. David
{"title":"EGAT's legacy and the transition towards a competitive electricity market in Thailand","authors":"N. Leeprechanon, S. Moorthy, C. Greacen, P. Vongthanet, A. K. David","doi":"10.1109/ICPST.2000.897110","DOIUrl":"https://doi.org/10.1109/ICPST.2000.897110","url":null,"abstract":"The paper undertakes a discussion of the process of restructuring towards a competitive electricity market which is divested to some degree from the facilities of the Electricity Generating Authority of Thailand (EGAT). A model proposed to the government of Thailand by a consulting consortium and an alternative model proposed by the authors are both outlined. The authors' model offers key new options and elaborates alternative points of view for restructuring in developing nations, especially in Asia. This model is sensitive to many fundamental background differences. The case for an independent national transmission entity model is argued, and an investment strategy to achieve national transmission expansion is presented.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131238211","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
Problem-based learning in teaching electricity economics 电力经济学教学中的问题导向型学习
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.900118
J. Hovila, T. Ristimaki, K. Laitinen, P. Trygg, S. Kuusiluoma, L. Korpinen
{"title":"Problem-based learning in teaching electricity economics","authors":"J. Hovila, T. Ristimaki, K. Laitinen, P. Trygg, S. Kuusiluoma, L. Korpinen","doi":"10.1109/ICPST.2000.900118","DOIUrl":"https://doi.org/10.1109/ICPST.2000.900118","url":null,"abstract":"Problem-based learning is one of the latest educational methods. The aim of this paper was to illustrate how PBL has been used in electric power engineering education and what kinds of experiences have been reached. In the department of Electric Power Engineering at Tampere University of Technology (TUT), PBL was used for three different case exercises in the \"Energy Economics\" course. The problems of the cases were designed to correspond to real-life situations. To encourage the students to solve the cases they were given activity points to examination. The analysis of questionnaires, which were filled in by students, indicates that students liked problem-based learning as a teaching method and that PBL is worth further development.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133701295","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
Nonlinear equilibrium point controller for multi-machine power system 多机电力系统非线性平衡点控制器
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.898156
S. Kawamoto, Y. Sugimoto, H. Nishigaito
{"title":"Nonlinear equilibrium point controller for multi-machine power system","authors":"S. Kawamoto, Y. Sugimoto, H. Nishigaito","doi":"10.1109/ICPST.2000.898156","DOIUrl":"https://doi.org/10.1109/ICPST.2000.898156","url":null,"abstract":"The authors have proposed an equilibrium point controller (EPC) for nonlinear systems, and have applied it to model power systems, in which each generator has a strong nonlinearity and limiters of AVR and GOV. The aim of this paper is to apply the nonlinear EPC to two model systems, and to show that good control responses and a long critical clearing time can be obtained by the nonlinear decentralized control for the ten-machine system.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123168665","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
A solution of optimal power flow with voltage stability constraints 具有电压稳定约束的最优潮流解
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.897095
J. Kubokawa, R. Inoue, H. Sasaki
{"title":"A solution of optimal power flow with voltage stability constraints","authors":"J. Kubokawa, R. Inoue, H. Sasaki","doi":"10.1109/ICPST.2000.897095","DOIUrl":"https://doi.org/10.1109/ICPST.2000.897095","url":null,"abstract":"A competitive electricity market often requires the separation of transmission and generating services; therefore, the transmission system operator does not have an impact on short and long term generation patterns. At the same time, the transmission operator needs to accommodate various transactions and generation patterns. In the desire to accommodate market-based transactions, the transmission operator is very much interested in quantifying the various stability margins (voltage, dynamic, etc.) and in determining the level of robustness of the transmission system. In the case of voltage stability, the index of robustness used is the difference from the current operating condition to an infeasible point. Particularly relevant is the amounts of additional reactive load that can be accommodate before the system experience a voltage collapse. In this paper, the authors propose a development of OPFs based on a primal-dual nonlinear interior-point method, which can handle maximum loadability constraint under contingency state. The developed OPF can solve the optimal operating point while keeping enough loadability margin under contingency state. In order to demonstrate the advantage of the proposed methods, the OPFs are applied to several test systems under various operating conditions.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133766047","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
Composite system reliability evaluation using AC equivalent network 基于交流等效网络的复合系统可靠性评估
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.897116
K. Audomvongseree, B. Eua‐arporn
{"title":"Composite system reliability evaluation using AC equivalent network","authors":"K. Audomvongseree, B. Eua‐arporn","doi":"10.1109/ICPST.2000.897116","DOIUrl":"https://doi.org/10.1109/ICPST.2000.897116","url":null,"abstract":"Network size is a main factor for computation time in composite power system reliability evaluation. This paper presents an evaluation method based on AC equivalent. The proposed method categorises a system into three main sections, i.e. internal area, boundary buses, and external area which will later be represented by an AC equivalent network. The method has been tested with the IEEE-RTS79 and IEEE-RTS96 of which the reliability indices of the whole system is evaluated and compared with those obtained from a completed enumeration analysis of the original network.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124099049","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
Research on fault sample knowledge abstraction and fault fuzzy diagnosis for large power station halving-style condenser 大型电站半式凝汽器故障样本知识提取与故障模糊诊断研究
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.900082
Ma Liang-yu, Wang Bing-shu, Ma Yongguang, Gao Jian-qiang, Tong Zhensheng
{"title":"Research on fault sample knowledge abstraction and fault fuzzy diagnosis for large power station halving-style condenser","authors":"Ma Liang-yu, Wang Bing-shu, Ma Yongguang, Gao Jian-qiang, Tong Zhensheng","doi":"10.1109/ICPST.2000.900082","DOIUrl":"https://doi.org/10.1109/ICPST.2000.900082","url":null,"abstract":"Typical fault sample knowledge library of the halving style condenser is abstracted and completed based on the dynamic simulation model of halving-style condenser developed by the authors. The fuzzy pattern recognition is used to realize halving-style condenser fault diagnosis. A new kind of subordinate function is given to overcome the demerit of one old function. Diagnostic effects of the two different functions are compared by example.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115986400","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
Design and implementation of constant frequency soft switched regulated power supply for aerospace applications 航空航天用恒频软开关稳压电源的设计与实现
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.900103
G. Uma, C. Chellamuthu
{"title":"Design and implementation of constant frequency soft switched regulated power supply for aerospace applications","authors":"G. Uma, C. Chellamuthu","doi":"10.1109/ICPST.2000.900103","DOIUrl":"https://doi.org/10.1109/ICPST.2000.900103","url":null,"abstract":"A new method of voltage regulation of the constant frequency (CF) zero voltage switching (ZVS) quasi-resonant converter (QRC) based DC-DC switched mode power supply is presented. The output voltage of the half wave (HW) CF-QRC varies, when the load and the input voltage changes. To maintain constant output voltage, a closed loop system with a PI controller is proposed. The present work deals with the design and implementation of CF-ZVS-QRC operating in the HW mode. A high-speed micro-controller is used for the realization of PI controller and for the generation of trigger pulses for the switches. The experimental results are compared with theoretical results and they closely agree with each other.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116449745","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: 8
Branch-and-bound dispatching for feeder capacitors on distribution system 配电系统馈线电容器的分支定界调度
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.898205
S. Wang, W. Liao, K. Shen, Y. Chen
{"title":"Branch-and-bound dispatching for feeder capacitors on distribution system","authors":"S. Wang, W. Liao, K. Shen, Y. Chen","doi":"10.1109/ICPST.2000.898205","DOIUrl":"https://doi.org/10.1109/ICPST.2000.898205","url":null,"abstract":"A new branch-and-bound algorithm for the placed capacitors dispatch on a distribution feeder in daily system operation is presented in this paper. An efficient branching method based on the heap data structure and a simple intuitive bounding rule based on the forecast hourly loads are proposed to reach an optimum capacitor dispatching schedule and minimize the total feeder losses. The operation constraints, including bus voltage limits and maximum allowable number of switching operations for each switchable capacitor, have been taken into account to optimize the real-time scheduling problem under varying loading conditions. The feature of the devised solution algorithm is their numerically fast computation and mathematically justified optimality. To demonstrate the effectiveness of the proposed approach, capacitors dispatch on a distribution feeder of the Taiwan Power Company (TPC) is studied. Numerical computation gives satisfactory results and illustrates that the devised approach locates the optimum schedule in greater loss reduction and less computation time than many existing techniques.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117203397","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
An efficient method for power distribution system restoration based on mathematical programming and operation strategy 一种基于数学规划和运行策略的配电系统恢复方法
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.898201
T. Nagata, S. Hatakeyama, M. Yasouka, H. Sasaki
{"title":"An efficient method for power distribution system restoration based on mathematical programming and operation strategy","authors":"T. Nagata, S. Hatakeyama, M. Yasouka, H. Sasaki","doi":"10.1109/ICPST.2000.898201","DOIUrl":"https://doi.org/10.1109/ICPST.2000.898201","url":null,"abstract":"This paper proposes an efficient and computationally fast solution algorithm for distribution system restoration based on a mathematical programming approach. The computation time is improved greatly by dividing the problem into two stages and incorporating restoration strategies, which are derived from an operator's knowledge and experience. It is shown from simulation results that this method is able to obtain an optimal target configuration in all cases. In addition, the computation time has been reduced to within 30% of our previous method.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117223917","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: 43
High frequency partial discharge measurement by capacitive sensor for underground power cable system 用电容式传感器测量地下电力电缆系统高频局部放电
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.898196
Chang-Young Lee, S. Nam, Su-Gil Lee, Dong-Wook Kim, M.K. Choi
{"title":"High frequency partial discharge measurement by capacitive sensor for underground power cable system","authors":"Chang-Young Lee, S. Nam, Su-Gil Lee, Dong-Wook Kim, M.K. Choi","doi":"10.1109/ICPST.2000.898196","DOIUrl":"https://doi.org/10.1109/ICPST.2000.898196","url":null,"abstract":"This paper deals with partial discharge (PD) measurement technique on the range of high frequency by capacitive sensor for the power cable system. This sensor is installed inside of cable joints and terminations without affecting the insulation design. The sensitivity of the sensor depending on the installation condition was investigated by simulation and compared with the results of experiments with joint occurring PD. It was shown that the dominant factor affecting sensitivity of the sensor was resistance formed between sensor and ground sheath. It was proven that the sensitivity of this sensor was much higher than that of the conventional method in accordance with IEC270 standard. This sensor is available for the on-line PD monitoring system.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128516142","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
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