计及开关故障的复杂配电系统可靠性评估

结合中压配电网复杂的结构特点，提出一种计及开关故障的配电系统可靠性评估算法。首先给出邻接表的构造方法，基于此提出配电网分块快速形成算法。配电网常具有树状运行特点，在故障解析模拟时，将开关元件故障对系统可靠性的影响分摊到连接开关的相邻分块的故障后果中，进而提出计及开关故障的可靠性等值解析模型，不需单独进行开关元件故障的可靠性分析即可计算其对系统可靠性的影响，应用该算法对RBTS-BUS6和RBTS-BUS4系统及实际中压配电网进行了可靠性评估，结果表明该算法有较明显的速度优势，具有高效性和工程实用性。

Reliability Evaluation of Complex Distribution System Taking Switch Faults into Account

Combining with structural features of medium-voltage distribution network, a reliability evaluation algorithm for distribution system in which the switch faults are taken into account is proposed. First, the constructional method of adjacency list is given; then on this basis a fast forming algorithm of sections in distribution network is put forward. Usually, distribution networks operate in arborescence mode, so in the simulation of fault analysis the impact of faulty switch element on system reliability is apportioned to failure consequences of adjacent sections that connect to switch, and then an equivalent analytical model considering switch fault is proposed. Thus, not having to conduct the reliability analysis of switch element singly, the impact of switch element fault on system reliability can be calculated. Applying the proposed algorithm in RBTS-BDS6 system, RBTS-BUS4 system and actual medium-voltage distribution network to conduct reliability assessment, the results show that the proposed algorithm is superior in speed and possesses efficiency and engineering practicality.