配电网网络重构策略研究

Strategy Researc h on Distribution Network Reconfiguration

针对离散优化问题,以粒子群优化算法(PSO)信息更新的本质机理为基础,在基本PSO算法的基本思想、算法框架下,引入分布估计算法思想,重新定义离散粒子的表示方式。将分布估计离散粒子群算法应用到配电网优化重构中,每一维粒子的取值,须根据概率向量产生,在寻优过程中,根据粒子能力的差异,自适应调整其惯性权重,从而寻找对配电网拓扑结构的优化策略,达到降低配电网的网络损耗、提高电压可靠性的目的。

On the basis of basic thought of PSO algorithm and algorithm framework,the estimation of distribution algorithm is introduced to solve discrete optimization problem by using PSO algorithm to update the information essential mechanism.Estimation of distribution discrete particle swarm optimization algorithm is opplied to ditribution network reconfiguration,each value for optimization of one-dimensional particles depends on the probability vector.In the process of optimization,according to the particle ability difference,adaptive adjustment of the inertia weight,the topology of distribution network optimization can be achieved,to reduce network loss,improve the distribution network voltage reliability objective.