辐射状配电系统可靠性评估的故障遍历算法

提出一种辐射状配电系统可靠性评估的故障遍历算法。该算法能有效地考虑系统的容量约束 ,尤其适用于含大量子馈线和隔离开关的复杂配电网络。利用树的后向父节点搜索技术确定故障所属断路器的动作 ,利用树的广度优先遍历算法和深度优先遍历算法分别确定隔离开关的故障隔离范围及负荷点的故障类型。该算法根据配电系统的结构特点 ,将树的先根优先遍历和后根优先遍历技术分别用于配电网潮流的功率前推和回代计算 ,能较好地与可靠性评估算法相结合。经算例验证 ,该算法能有效地考虑配电系统的各种网络拓扑结构 ,提高可靠性评估的精度 ,是一种较为实用的可靠性评估算法

FAULT-TRAVERSE ALGORITHM OF RADIAL-DISTRIBUTION-SYSTEM-RELIABILITY EVALUATION

A reliability evaluation algorithm for radial distribution system is proposed.The algorithm effectively considers capacity constraint,and is fit to evaluate the relatively complex distribution system s consisting of m any sub- feeders and disconnects.The parent- searching m ethod is applied to determine the breaker influenced by the faults,and the breadth- first- searching and depth- first- searching are respectively applied to determine the disconnection areas and the fault types of load points.The proposed algorithm,according to the features of radial distribution system s,adopts back/ forward sweep m ethod to distribution power flow calculation,and is consistent with the above algorithm.The DRTS- bus2 and DRTS- bus6 are evaluated by using the proposed algorithm,which verifies the effectiveness of this algorithm.