基于二次协作优化方法的配电网重构

Distribution network reconfiguration based on a secondary collaborative optimization method

针对现今配电网线损大的问题,构建以网损最优为目标函数的配电网重构数学模型,提出二次协作优化方法.该方法利用模拟渔夫捕鱼算法的局部寻优能力来寻找遗传算法的初始种群,再通过遗传算法的全局寻优能力寻找最优解,从而提高算法的搜索效率.对IEEE 69节点测试系统的算例仿真结果表明:所构建的配电网重构数学模型能有效地降低配电网中的网损;所提出的二次协作优化方法具有搜索效率高、性能好的特点.

In order to solve the line power losses problem of distribution network, a distribution network reconfiguration mathematical model with the objective function of minimizing the line power losses is constructed. And a secondary collaborative optimization method is first proposed. By using the Simulation fisherman fishing algorithm, the method can effectively find the initial population of genetic algorithm, and then the global optimization capability of genetic algorithm is selected to improve the algorithm searching efficiency. Simulation results in IEEE 69-bus tes- ting system show that the developed model can effectively reduce the line power losses of distri- bution network ,and the presented optimization method has the characteristics of high calculating speed and preferable capability.