用于复杂配电网潮流计算和可靠性评估的树状链表和递归搜索方法

Dendroidal Link Table and Recursion Search Technique for Power Flow Calculation and Reliability Estimation of Complex Distribution Networks

以文件或数据库形式存储的工程数据存储量大、搜索复杂、难以直接反映网络的实际拓扑结构,从而使配电网可靠性评估的计算过程较复杂。为降低配电网潮流计算和可靠性评估的计算复杂度,针对配电网的结构特点,提出了树状链表和递归搜索方法,得到的反映配电网树状链表关系的数据结构具有存储过程不依赖输入数据、直观反映网络结构、可避免大规模矩阵存取等优点。基于该数据结构的节点和分块递归搜索方法可有效提高配电网潮流计算和故障解析分析的效率。测试算例和工程算例结果表明该方法能有效减少配电网可靠性评估的计算时间和空间复杂性,具有较高的工程实用价值。

Due to the huge memory capacity and complex search process, it is difficult to directly reflect the practical topology structure of distribution network for the engineering data stored in the form of files or database, thus the calculation of reliability assessment of distribution network is complicated. To reduce the complexity of load flow calculation and reliability assessment of distribution network, according the structural feature of distribution network the dendroidal link table and recursion search technique are proposed, the obtained data structure reflecting the dendroidal link table relation of distribution network possesses following advantages： not relying on input data, directly reflecting network structure, avoiding large scale access of matrices, etc. With the recursive search of bus and partitioning based on such a data structure, the computing time and spatial complexity of distribution network reliability assessment can be effectively reduced, so this search method can be applied in practice.