基于树型结构的配电网故障处理新算法

配电网故障后，为快速恢复非故障失电区的供电，提出了一种基于树型结构的配电网故障恢复算法。该算法根据配电网闭环设计、开环运行的特点，用树型结构表示配电网，并对其分层，减少了启发式搜索的搜索空间，降低了求解的复杂度。同时将求解问题分为离线计算和在线计算2部分，把与故障模式无关的计算转移到离线方式下进行，减少了在线计算的工作量，提高了搜索速度。某配电网的算例结果表明该算法可快速有效地得到若干个供电恢复方案，具有可行性。

A New Tree Structure Based Fault Processing Algorithm for Distribution Network

In post-fault distribution network,to quickly restore power supply for the regions where power supply is interrupted no thanks to fault of local transmission lines,a tree structure based fault restoration algorithm for distribution network is proposed. Due to the feature of renovated domestic distribution networks that they are designed to be closed-looped and operated in radial mode,the distribution network is expressed by tree structure and by means of layering the space for heuristic search is reduced,thus the complexity of solution is decreased. The solution of the proposed algorithm is divided into two parts,namely off-line calculation and on-line calculation,the calculation independent of fault modes is performed in off-line part to reduce the burden of on-line calculation and quicken the search speed. Calculation results of a certain distribution network show that using the proposed algorithm several power supply restoration schemes can be obtained quickly and effectively,so this algorithm is feasible.