IEEE/PES Transmission and Distribution Conference and Exhibition最新文献_第4页

Application of gas insulated transformers to underground substations in Japan 日本气体绝缘变压器在地下变电站中的应用

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1178440

S. Tsukao, Y. Oue, Y. Hasegawa

引用次数: 6

Performance evaluation of high-voltage circuit breakers by means of current zero analysis 用电流零分析方法评价高压断路器的性能

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1178398

R. Smeets, V. Kertész, S. Nishiwaki, K. Suzuki

{"title":"Performance evaluation of high-voltage circuit breakers by means of current zero analysis","authors":"R. Smeets, V. Kertész, S. Nishiwaki, K. Suzuki","doi":"10.1109/TDC.2002.1178398","DOIUrl":"https://doi.org/10.1109/TDC.2002.1178398","url":null,"abstract":"Proper combination of fast, high-resolution analogue to digital converters, optical signal transfer and digital signal processing tools with advanced current and voltage measurement sensors has led to the development of a compact current zero measurement system for application in high-power laboratories as an aid in testing SF/sub 6/ circuit breakers. The application of this system in the renovated high-power laboratory of Toshiba Co is described, including the results of short-line fault tests in the range 16-70 kA on a 300 kV single break model circuit breaker. Three levels of information on the 'quality of interruption', obtained from current zero measurements are discussed: (1) direct observation of post-arc current, arc voltage collapse phenomena, commutation process of arc current into (stray-) capacitance etc.; (2) the arc conductivity very shortly (200 ns) before current zero, an indicator of the performance of the breaker under test. A new quantitative method of electrical endurance mapping is presented; and (3) arc model parameters are extracted out of every individual test, that enable prediction of the performance under other conditions than those tested (e.g. with an internal capacitor).","PeriodicalId":289535,"journal":{"name":"IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131339804","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

Accurate fault location in high voltage transmission systems comprising an improved thyristor controlled series capacitor model using wavelet transforms and neural network 基于小波变换和神经网络的改进晶闸管控制串联电容模型在高压输电系统中的精确故障定位

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1177585

W. J. Cheong, R. Aggarwal

引用次数: 17

Thermal interruption capability of carbon dioxide in a puffer-type circuit breaker utilizing polymer ablation 利用聚合物烧蚀的泵式断路器中二氧化碳的热中断能力

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1177719

T. Uchii, T. Shinkai, Katsumi Suzuki

{"title":"Thermal interruption capability of carbon dioxide in a puffer-type circuit breaker utilizing polymer ablation","authors":"T. Uchii, T. Shinkai, Katsumi Suzuki","doi":"10.1109/TDC.2002.1177719","DOIUrl":"https://doi.org/10.1109/TDC.2002.1177719","url":null,"abstract":"When adopting an alternative arc quenching gas to SF/sub 6/ which has recently been recognized as a greenhouse gas, it is easily anticipated that the thermal interruption capability of the GCB will be lower than that in using SF/sub 6/. In this paper, adopting CO/sub 2/ as an alternative gas, the means utilizing ablation phenomenon of polymer materials as one of the breakthrough technologies compensating the drop in the interruption performance will be proposed and tested by a full-scaled GCB model. As a result, a change in the blasting pressure characteristics was observed, and also the peak pressure for the ablation application model was about 1.3 times higher than that of the conventional model without the ablation element. Furthermore, even if compared at the same blasting pressure condition at current zero, the thermal interruption capability of the CO/sub 2/ gas in the ablation application model was presumed to be improved with comparison to the conventional model without the ablation element. The thermal interruption capability of the CO/sub 2/ gas in the ablation application model could be estimated to be about 50 % of that of SF/sub 6/ gas in the conventional model in this interrupting test.","PeriodicalId":289535,"journal":{"name":"IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132345147","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: 25

Using artificial intelligence for the control of medium voltage substations 利用人工智能对中压变电站进行控制

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1177651

M. Ayala S, G. Botura, O.A. Maldonado A

引用次数: 0

Nonlinear optimal control applied to STATCOM for power system stabilization 非线性最优控制在STATCOM系统中的应用

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1178356

M. Sekoguchi, H. Konishi, M. Goto, A. Yokoyama, Q. Lu

引用次数: 20

Optimal strategy to split firm and recallable available transfer capability in the deregulated environment 解除管制环境下分割企业和可召回可用转移能力的最优策略

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1177592

Yun-Fa Chan, C. Chu, Sheng-Huei Lee

引用次数: 1

Unified power flow controller (UPFC): its versatility in handling power flow and interaction with the network 统一潮流控制器(UPFC):在处理潮流和与网络交互方面具有通用性

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1177674

R. Arnez, L. Zanetta

引用次数: 19

The application of neural networks and Clarke-Concordia transformation in fault location on distribution power systems 神经网络和Clarke-Concordia变换在配电系统故障定位中的应用

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1177783

L. Sousa Martins, J. Martins, V. Fernão Pires, C. Alegria

{"title":"The application of neural networks and Clarke-Concordia transformation in fault location on distribution power systems","authors":"L. Sousa Martins, J. Martins, V. Fernão Pires, C. Alegria","doi":"10.1109/TDC.2002.1177783","DOIUrl":"https://doi.org/10.1109/TDC.2002.1177783","url":null,"abstract":"This paper presents a new approach to fault location on distribution power lines. This approach uses an artificial neural network based learning algorithm and Clarke-Concordia transformation. The /spl alpha/,/spl beta/,0 components of line currents resulting from the Clarke-Concordia transformation are used to detect all types of fault. The neural network is trained to map the nonlinear relationship existing in fault location equations. The proposed approach is able to identify and locate all different types of faults (single line to ground, double line to ground, line-to-line and three-phase short-circuit). This approach is subdivided into several main steps: Data acquisition, corresponding on three-phase current signals; Mathematical treatment by the Clarke-Concordia transformation; Fault identification, obtained by the analysis of fault and pre-fault data; Fault location artificial neural network based learning algorithm. The fault position is presented as the output of the neural network on which, as the input, it was considered the eigenvalue of matrix representing transformed line current. Results are presented which shows the effectiveness of the proposed algorithm for a correct fault location on distribution power system networks.","PeriodicalId":289535,"journal":{"name":"IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134260586","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: 25

Applications of meta-heuristics to power systems in Japan 元启发式在日本电力系统中的应用

IEEE/PES Transmission and Distribution Conference and Exhibition Pub Date : 2002-10-06 DOI: 10.1109/TDC.2002.1178511

H. Mori

引用次数: 1