影响配电系统可靠性的因素分析及提高对策  

Analysis of Distribution System Reliability Affection Factors and Indices Improvement

作　　者：邓立华[1] 陈星莺[2] 孙炳军[3] 

机构地区：[1]河海大学计算机及信息工程学院(常州),江苏常州213022 [2]河海大学电气工程学院,江苏南京210098 [3]常州供电公司,江苏常州213000

出　　处：《现代电力》2006年第6期45-49,共5页Modern Electric Power

摘　　要：配电系统可靠性分析是电力系统可靠性计算的重要内容,广泛使用于电网规划、运行和改造中。可靠性分析方法分为解析法和蒙特卡罗模拟法两大类。以IEEE可靠性测试系统的母线4为研究对象,进行可靠性指标计算。母线4共38个负荷点,系统规模不大,采用解析法进行计算。通过定量分析系统接线方式、元件故障率、元件故障时间对配电系统可靠性的影响,发现接线方式五可靠性最高。但由于变压器造价昂贵,出于经济因素的考虑通常选接线方式一作为基本接线方式,即主馈线有隔离开关、分支线有保护、有备用电源、变压器无备用。元件故障率和元件故障时间的升高会降低系统供电可靠性。针对这些影响因素,提出可以从改善系统结构、选用高质量元件、采用配电自动化和带电作业几个方面提高系统可靠性,具有一定的实践意义。Distribution system reliability analysis is used widely on power network plan, running and reconstruction, which is an important content of power system＇s reliability analysis. Two methods are commonly used. One is analytic method, the other is Monte-Carlo simulation method. In this paper, the analytic method is chosen. The example is the IEEE, reliability test system bus 4. The affection factors are found out through IEEE, RBTS BUS4 reliability indices calculation, such as connection cases, equipment＇s failure rate, equipment＇s failure time. Conclusion can be drawn that reliability of case 5 is the highest, and the base case is case 1 considering economical diathesis. Increase of equipment＇s failure rate and time may decrease the system reliability. Several improvement means are presented, which are of practical value.

关 键 词：配电系统 分析 可靠性 提高 解析法 

分 类 号：TM732[电气工程—电力系统及自动化] TM727.2