中文摘要：

配电网综合优化问题涉及非线性组合和非线性整数规划，求解困难。应用电气剖分方法，由负荷受电路径的电气剖分信息构造一种求解配电网综合优化问题的物理寻优方法。它利用电气剖分信息分别构建求解网络重构子问题与电容器投切子问题的物理寻优过程，2个过程交替迭代进行，并在网络重构子问题计算负荷受电路径电气距离时考虑电容器投切点的影响，避免了交替迭代过程的振荡，加速了求解过程，改善了优化效果。整个算法属于物理寻优，不存在不收敛的情况。IEEE69系统分析表明，算法具有快速求得优良解的特点，适合在线应用。

英文摘要：

Comprehensive optimization of large-scale distribution network involves nonlinear combination and integer program, so its computation is very difficult. The electrical dissection method was applied to set up a new physical optimal algorithm using electrical dissection information of path linkage supplying loads. The electrical dissection information was used to build physical optimization processes that solve networks reconfiguration sub-problem and capacitor switching sub-problem separately. These two processes iterate alternately. And to the networks reconfiguration sub-problem, the influence of the capacitor switching was considered when computing the supplying load electrical distance. The oscillation in the alternative iteration is avoided, the solving process is accelerated, and the optimization effect is improved. The whole process is a physical optimization process, so bad convergence will not exist. The IEEE69 system was used to test this algorithm. The result shows that this algorithm can get the proper solution fast, and is adapt to on-line application.