作　　者： ; ; (汪穗峰）; (代保明）; (吴国沛）;

机构地区： 华南理工大学电力学院

出　　处： 《电力系统自动化》 2004年第23期56-60,共5页

摘　　要： 引入了系统伪故障状态和伪故障指标的定义,并给出了系统伪故障指标的计算公式。提出了基于伪故障指标的系统状态空间截断的电力系统可靠性评估算法,利用伪故障指标包含的信息,找出所有系统伪故障状态对系统可靠性影响较大的状态集合,通过对该集合进行系统行为分析,统计计算出电力系统的可靠性指标。该算法能对系统状态空间截断,在计算速度上取得了很大的进展,协调了可靠分析中的计算速度和精度的矛盾。通过系统伪故障指标还可以分析系统的薄弱环节。 The definition of system false fault state and indices is presented and the calculating formula of false fault indices are given in this paper. The reliability evaluation algorithm using state pruning based on false indices is further proposed, viz. making the best use of the information of false fault indices covered to get the key states in all system false fault states. Hence, the reliability indices are calculated by analyzing those key states. The great progress in speed of evaluation is achieved and the conflict between speed and precision of reliability analysis is harmonized. Moreover, system weakness can also be analyzed by use of system false fault indices.

关 键 词： 电力系统 可靠性评估 伪故障指标 状态截断

领　　域： [电气工程] [电气工程]