含微网的配电网多目标优化规划研究

摘要

With ever-increasing of the capacity of microgrids in the distribution network year by year,in order to increase reliability and reduce the line loss and redundant construction in the distribution network,the space truss structure of and power settings of the distribution network and are badly in need of optimization in the planning stage.At first,this paper selects a micro network model which is applicable to the planning study,and then puts forward two of the most important objective functions in the distribution network planning,namely the reliability and economy objective functions.According to the requirement of the distribution network planning optimization,the paper has selected the quantum particle swarm optimization (QPSO) to solve the optimization problem.Finally,the proposed method is applied in an actual engineering example in a certain area.The simulation results show that this optimization method can significantly improve the reliability and economic indicators of the distribution network containing microgrids.%随着配电网中微网容量的逐年增加,为了增加配电网可靠性并减少线路损耗及重复建设,亟需在规划阶段对配电网的网架结构及电源设置做出一定优化.选取了适用于规划研究的微网模型,提出了配电网规划中最重要的2个目标函数——可靠性及经济性目标函数,并根据配电网规划优化的要求,选取量子粒子群算法来求解该优化问题.将所提出含微网的配电网优化规划方法应用于某地区实例,结果表明,该优化方法可以显著提高含微网配电网的可靠性及经济性指标.