Proceedings of 1995 Industrial and Commercial Power Systems Conference最新文献_第2页

Dynamic testing of frequency relays 频率继电器的动态测试

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526985

N. Stringer

引用次数: 3

Considerations for generator ground fault protection in mid size cogeneration plants 中型热电联产电厂发电机接地故障保护的考虑

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.527006

R. Rifaat

引用次数: 14

A comparison between the ANSI/IEEE and the CENELEC/IEC approach to overload protection of insulated power cables ANSI/IEEE和CENELEC/IEC绝缘电力电缆过载保护方法的比较

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.528568

G. Parise, G. Rubino

引用次数: 19

Calculation of ampacities and sizing of line and neutral conductors in the presence of harmonics 在存在谐波的情况下计算线路和中性导体的电容和尺寸

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526989

A. Hiranandani

引用次数: 6

Minimizing the effects of voltage disturbances on continuous industrial processes 将电压干扰对连续工业过程的影响降到最低

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.527000

K. Carrick

引用次数: 2

Computer-aided coordination and overcurrent protection for distribution systems 配电网计算机辅助协调与过流保护

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.527005

L. Tolbert

引用次数: 1

Distribution feeder loss computation by artificial neural network 基于人工神经网络的配电馈线损耗计算

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526992

S. Kau, M. Cho

{"title":"Distribution feeder loss computation by artificial neural network","authors":"S. Kau, M. Cho","doi":"10.1109/ICPS.1995.526992","DOIUrl":"https://doi.org/10.1109/ICPS.1995.526992","url":null,"abstract":"This paper proposes an artificial neural network (ANN) based\u0000feeder loss calculation model for distribution system analysis. In this\u0000paper, the functional-link network model is examined to form the\u0000artificial neural network architecture to derive the various loss\u0000calculation models for feeders with different configuration. Such an\u0000artificial neural network is a feedforward network that uses a standard\u0000back-propagation algorithm to adjust weights on the connection path\u0000between any two processing elements (PEs). Feeder daily load curve in\u0000each season are derived by field test data. A three-phase load flow\u0000program is executed to create the training sets with exact loss\u0000calculation results. A sensitivity analysis is executed to determine the\u0000key factors including power factor, feeder loading primary conductors,\u0000secondary conductors, and transformer capacity as the variables for\u0000components located at the input layer. By using an artificial neural\u0000network with pattern recognition ability, this study has developed\u0000seasonal and yearly loss calculation models for overhead and underground\u0000feeder configurations. Two practical feeders with both overhead and\u0000underground configurations in the Taiwan Power Company distribution\u0000system are selected for computer simulation to demonstrate the\u0000effectiveness and accuracy of the proposed models. Compared with models\u0000derived by the conventional regression technique, results indicate that\u0000the proposed models provide more efficient tools to the district\u0000engineer for feeder loss calculation","PeriodicalId":138670,"journal":{"name":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125353306","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

Transient effects of PWM drives on induction motors PWM驱动对感应电机的瞬态影响

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526990

C. Melhorn, Le Tang

引用次数: 59

Review of technologies for current-limiting low-voltage circuit breakers 限流低压断路器技术综述

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526988

C. Brice, R. Dougal, J. Hudgins

{"title":"Review of technologies for current-limiting low-voltage circuit breakers","authors":"C. Brice, R. Dougal, J. Hudgins","doi":"10.1109/ICPS.1995.526988","DOIUrl":"https://doi.org/10.1109/ICPS.1995.526988","url":null,"abstract":"Conventional air-magnetic circuit breakers, which are widely used in low-voltage applications, utilize magnetic forces that are produced by blowout coils, the geometry of the arcing contacts, or both. The magnetic forces act to push the arc off the contacts into an arc chute, which consists of a number of metal plates. The arc chute causes the arc to be split into a number of smaller arcs, thereby facilitating the process of extinguishing the arc. In the last 20 years, the technology of circuit breakers has dramatically advanced, now including mature devices based on gas-blast (such as SF/sub 6/) and vacuum interruption. At the same time, the technology of power electronic devices has evolved rapidly, leading to suggestions of a purely static circuit breaker based on solid-state electronic devices. Recently, several different proposals have appeared for current-limiting devices to be used in conjunction with or in replacement of conventional circuit breakers. The technologies involved in these proposals have ranged from very familiar (series reactors) to quite innovative (conductive polymer devices). Several of these proposed technologies have been used to a limited extent in commercial products, but they are very likely to see increasing applications as the technology matures. This paper begins with a short review of conventional circuit breaker action for background, then reviews the recent literature for current-limiting technologies that could be applied to low-voltage electric power systems. The paper concludes with a description of work underway for further development of conductive polymer current limiters.","PeriodicalId":138670,"journal":{"name":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121413469","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: 75

A microcomputer-based testing station for dynamic and static testing of protective relay systems 基于微机的继电保护系统动态和静态测试试验台

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.527004

Weijen Lee, Ren-Jun Li, J. Gu

{"title":"A microcomputer-based testing station for dynamic and static testing of protective relay systems","authors":"Weijen Lee, Ren-Jun Li, J. Gu","doi":"10.1109/ICPS.1995.527004","DOIUrl":"https://doi.org/10.1109/ICPS.1995.527004","url":null,"abstract":"Dynamic and static relay performance testing before installation in the field is a subject of great interest to utility relay engineers. The common practice in utility testing of new relays is to put the new unit to be tested in parallel with an existing functioning relay in the system, wait until an actual transient occurs and then observe and analyze the performance of new relay. It is impossible to have a thorough test of the protective relay system through this procedure. An equipment, Microcomputer-Based Testing Station (or PC-Based Testing Station), that can perform both static and dynamic testing of the relay is described in this paper. The Power System Simulation Laboratory at the University of Texas at Arlington is a scaled-down, three-phase, physical power system which correlates well with the important components for a real power system and is an ideal facility for the dynamic and static testing of protective relay systems. A brief introduction to the configuration of this laboratory is presented. Test results of several protective functions by using this laboratory illustrate the usefulness of this test set-up.","PeriodicalId":138670,"journal":{"name":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127360704","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