基于粒子群破环的主动配电网故障重构协同优化

Collaborative Optimization of Active Distribution Network Fault Reconstruction by Ring-broken Based on Particle Swarm Optimization

针对主动配电网新能源接入时对故障自愈稳定性和节能优化运行的多重要求,文章提出一种粒子群“破环”的优化算法,以实现故障自愈过程中新能源接入承载力与线损协同的优化方案。首先给出配电网自愈重构的约束条件和优化目标函数,采用Floyd算法搜寻配电网的最小环结构,并采用一种改进的“破环”粒子群优化算法对故障自愈重构进行优化。最后通过与传统的粒子群优化算法的对比仿真,证实研究算法的寻优能力与收敛速度,可为主动配电网故障重构提供理论依据。

To meet the requirements of power supply stability and self-healing optimization of power loss for the active distribution network,this paper proposed a ring-broken method based particle swarm optimization algorithm to realize the collaborative optimization scheme of new energy resource accommodation and line loss in fault self-healing process.Firstly,the constraints and optimization objective function of the self-healing reconstruction are given.Then,the Floyd algorithm is used to search all the minimum ring structures of the distribution network,and a ring-broken method based on particle swarm optimization algorithm is presented to optimize the fault self-healing reconstruction.Though a simulation,the proposed algorithm is compared with the traditional particle swarm optimization algorithm,and the result verifies the optimization ability and convergence rate.The research results can provide a theoretical basis for active distribution network fault reconstruction.