基于改进蚁群算法的配电网重构  

Distribution Network Reconfiguration Based on Improved Ant Colony Algorithm

作　　者：李焱 时芝勇[2] 海晓涛[3] 

机构地区：[1]张家港市供电公司,江苏张家港215600 [2]北京市电力公司,北京102100 [3]中国电力科学研究院,北京100192

出　　处：《陕西电力》2010年第9期22-25,共4页Shanxi Electric Power

摘　　要：配电网重构可以提高配电网运行的安全性、经济性和供电质量,对于当前国内配电自动化系统的建设和应用具有重要意义。以网络损耗最小为目标,提出了一种改进的蚁群算法来求解正常运行条件下配电网络的重构问题。针对基于蚁群算法在求解过程中存在搜索易陷入局部最优解和收敛到全局最优解的时间较长的缺点,从蚁群算法的转移概率和信息素动态更新2方面进行了改进,提高了蚁群算法全局搜索能力与收敛到最优解的速度。最后通过对69节点配电系统算例的仿真,取得了较好的效果,证明了该算法的有效性和可行性。Distribution network reconfiguration can improve security and quality of network operation as well as minimize the power loss, and it is of great importance for the construction and application of distribution automation system at present in China. In this paper, setting the object function to be loss minimization, an improved ant colony algorithm is applied to solve the distribution network reconfiguration. In the light of low convergent efficiency and easily trapping into local optimal solution with traditional ant colony algorithm, it is modified from two aspects of transition probability and dynamic updating pheromone to realize the all-round and speedy search in whole feasible region. The result of distribution network optimization reeonfiguration shows that the modified algorithm is effective and feasible by the simulation of 69 nodes distribution system.

关 键 词：配电网 网损 蚁群算法 重构 

分 类 号：TM714.2[电气工程—电力系统及自动化]