中文摘要：

配电网重构是1个非常复杂的大规模组合优化问题。蚁群算法作为1种现代启发式寻优技术，适合于求解组合优化问题，其主要特点是正反馈、分布式计算、易与其它算法结合以及富于建设性贪婪启发式搜索。提出以提高节点电压为目标的含分布式发电的配电网重构方法，该方法将电压平衡指数作为目标函数，通过改进蚁群算法来寻求配网的最佳结构。同时提出基于基本环路的解的编码方式，减少了不可行解的产生，从而进一步提高其计算效率。计算结果表明，在含有分布式发电情况下，该方法不仅可以提高供电电压质量，还可以降低网损。文中最后以IEEE33节点为例，验证了该方法的可行性。

英文摘要：

Distribution network reconfiguration is a complex, large-scale combinatorial optimization problem. As a new heuristic searching technique, ant colony search （ACS） algorithm is especially suitable for solving combinatorial optimization problem. ACS has positive feedback and the ability of distributed computation, and it is easy to combine with other algorithms and can do greedy heuristic search. A new network reconfiguration approach is presented in which the voltage balancing index is taken for objective function with distributed generations （DG）and the optimal structure of distributed network can be found through the adaptive ACS. At the same time the coding method based on the loop is adapted which greatly reduces the infeasible solutions when ACS is used in distribution system reconfiguration and has increased the efficiency of the algorithm. The test conducted on IEEE33-bus system showed that with this method not only the voltage profile can be improved, but also the objectives of reducing the network loss can be attained.