基于二层规划的电力系统无功优化混合算法研究

摘要

结合电力系统电压无功综合调控特点,建立无功优化的二层规划模型.上、下层分别选取系统网损最小和各节点电压偏移最小为目标函数,根据上、下层解空间的不同,上层采用原-对偶内点法,下层采用森林算法.搭建基于电力系统全数字实时仿真装置(A DPSS)的无功优化闭环检测平台,综合对比分析文中提出的二层规划程序和OPEN3000中的嵌入式AVC系统的优化策略,结果表明:该算法可以显著将低电力系统的网损,提高电压合格率.%In this paper,a bi-level programming model for reactive power optimization is established based on the characteristics of the grid voltage-reactive power control.The mini-mum grid loss and the minimum voltage offset are selected as t he objective functions for the upper-level and lower-levelrespectively.According to the differences of the solution space of the two levels,the primal-dual interior point algorithm is re-commended for the upper-level while random forests algorithm (RFA) for the lower-level.A reactive power optimization closed-loop detection platform is established based on advanced digital power system simulator (ADPSS) for a comprehensive comparative analysis of the optimization strategy of the bi-level programming proposed in the paper and the embedded AVC system in the OPEN30000.