基于网络等值法的配电网可靠性研究  

The Research Based on Distribution-network Reliability of Network Equivalent Method

作　　者：周云海[1] 曹小伟[1] 危雪[1] 

机构地区：[1]三峡大学电气信息学院,宜昌443002

出　　处：《电气开关》2008年第2期20-24,共5页Electric Switchgear

摘　　要：配电网可靠性评价是电力系统可靠性研究的重要环节,电力部门必需尽力保证配电网的可靠性。介绍了对于带有复杂分支馈线的配电网进行可靠性评估的网络等值法的基本原理。该方法首先用等效元件代替一部分网络分支馈线,从而将复杂网络逐步等值为简单的辐射形配电网,然后通过等效的简单辐射网计算系统的可靠性指标,从而运用可靠性指标对配电网的可靠性进行评价,通过实例验证了等值法的有效性。The reliability assessment of distribution network is an important subject in the reliability study of power system. In this paper, a method of reliability - network - equivalent of distribution system is introduced, which is based on analyzing the working mechanism of the distribution system. In this method, some equivalent elements are used to replace some portions of feeders of the distribution network, thus a complex distribution system is decomposed into a series of simple one. Then the reliability indices are calculated in the equivalent network, which are used to evaluate the reliability of distribution system. The validity of this method is examined by a example.

关 键 词：配电网 可靠性评估 等值 指标 

分 类 号：TM71[电气工程—电力系统及自动化]