Proceedings of 1995 Industrial and Commercial Power Systems Conference最新文献_第3页

Comparison between different procedures of reliability analysis for emergency and stand-by power systems 应急与备用电力系统可靠性分析不同方法的比较

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.527002

U. Grasselli

引用次数: 2

A feasibility study for a fault current limiter to reduce voltage sags at sensible loads 故障限流器在合理负载下降低电压跌落的可行性研究

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526995

H. Sarmiento, C. Tovar, E. Molero

{"title":"A feasibility study for a fault current limiter to reduce voltage sags at sensible loads","authors":"H. Sarmiento, C. Tovar, E. Molero","doi":"10.1109/ICPS.1995.526995","DOIUrl":"https://doi.org/10.1109/ICPS.1995.526995","url":null,"abstract":"In relatively weak electrical networks, that is, those with sparse interconnection between them; a fault occurring in any part of the network causes voltage sags to appear in different nodes, more severely in those adjacent to the fault. This occurs at every voltage level in an electrical network. Particularly so in distribution systems, when radial feeders originate from a same substation. In this case, a fault in one of the feeders will produce a voltage sag at the substation bus, thus affecting adjacent feeders. If any of these feeders supplies sensitive loads, like adjustable speed drives, PLC`S, computer systems, etc.; problems may arise at the customer loads where these voltage sags are seen as interruptions. It is suggested that a way to reduce these voltage sags to acceptable values can be achieved by limiting the fault current in the distribution feeders. A fault current limiter is defined as a series device that presents a low impedance to steady state currents, but acts quickly to limit the instantaneous magnitude of a fault current to a predetermined value. Many new fault current limiters (FCL) have been proposed lately in the literature but for this feasibility study a FCL of the LC resonantmore » link type was chosen for its simplicity.« less","PeriodicalId":138670,"journal":{"name":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","volume":"38 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":"131347758","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: 5

A new method for both harmonic voltage and harmonic current suppression and power factor correction in industrial power systems 一种工业电力系统谐波电压、谐波电流抑制和功率因数校正的新方法

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526986

Haozhong Cheng, H. Sasaki, N. Yorino

{"title":"A new method for both harmonic voltage and harmonic current suppression and power factor correction in industrial power systems","authors":"Haozhong Cheng, H. Sasaki, N. Yorino","doi":"10.1109/ICPS.1995.526986","DOIUrl":"https://doi.org/10.1109/ICPS.1995.526986","url":null,"abstract":"This paper proposes a new method for designing a group of single tuned filters for both harmonic current injection suppression and harmonic voltage distortion reduction and power factor correction. The proposed method is based on three purposes: (1) reduction of harmonic voltage distortion in the source terminals to an acceptable level, (2) suppression of harmonic current injection in the source terminals to an acceptable level, (3) improvement of power factor at the source terminals. To determine the size of the capacitor in a group of single tuned filters, three new NLP mathematical formulations will be introduced. The first is to suppress harmonic current injection within an acceptable level. The second is to minimize the fundamental reactive power output while reducing harmonic voltage distortion to an acceptable level. The third is to determine an optimal assignment of reactive power output based on the results of harmonic voltage reduction and power factor correction. This new method has been demonstrated for designing a group of single tuned filters and its validity has been successfully confirmed through numerical simulation in a 35 KV industrial power system. The proposed method can efficiently provide an optimal coordination in a group of single tuned filters relating tomore » suppressing harmonic current injection, reducing harmonic voltage distortion and improving power factor.« less","PeriodicalId":138670,"journal":{"name":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","volume":"21 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":"114357978","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: 7

Reliability of lightning resistant overhead power distribution lines 防雷架空配电线路的可靠性

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.527001

L. Tolbert, J. Cleveland, L. Degenhardt

引用次数: 5

Tentative criteria for the design and installation of electrical power systems subject to seismic hazard 易受地震危害的电力系统设计和安装的暂定标准

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1995-05-07 DOI: 10.1109/ICPS.1995.526994

G. Parise, F. Ferranti, R. Colozza

{"title":"Tentative criteria for the design and installation of electrical power systems subject to seismic hazard","authors":"G. Parise, F. Ferranti, R. Colozza","doi":"10.1109/ICPS.1995.526994","DOIUrl":"https://doi.org/10.1109/ICPS.1995.526994","url":null,"abstract":"This paper discusses the need to study the criteria for the design and installation of electrical power systems in buildings subject to seismic hazards. Nowadays, all the recommended seismic requirements (according to the Uniform Building Code [UBC], Structural Engineers Association of California [SEAOC] and National Earthquake Hazards Reduction Program [NEHRP]) do not specifically take into account the electrical or technological power systems. This paper analyzes the problems an earthquake can cause with regard to the functional reliability and continuity of supply of electrical power systems. Therefore, it proposes design and installation requirements, to be graduated according to building occupancy categories. Basically, the criteria relative to the installation of the electrical equipment are an appropriate extension of those general static ones for nonstructural components. Their consideration is essential for the settlement of the design criteria, which, as far as the configuration and the size of the electrical power system are concerned, aim at limiting the same installation problems. Other general design criteria, designed as a guarantee for supply continuity and power system reliability, have a particular use in these appliances.","PeriodicalId":138670,"journal":{"name":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","volume":"31 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":"123337009","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

Vacuum contactor retrofit of a low-voltage power circuit breaker 低压电源断路器真空接触器改造

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1900-01-01 DOI: 10.1109/ICPS.1995.527003

J. Fischer

引用次数: 0

Power quality and line considerations for variable speed AC drives 变速交流驱动器的电源质量和线路考虑

Proceedings of 1995 Industrial and Commercial Power Systems Conference Pub Date : 1900-01-01 DOI: 10.1109/ICPS.1995.526984

D. Shipp, W. Vilcheck

引用次数: 1