【摘要】 电力系统限流措施优化配置是复杂的非凸、非线性问题,在考虑潮流约束后,模型更复杂。为此,通过分析节点阻抗矩阵与各种限流措施的关系,提出一种措施变量的筛选策略,缩减变量数目,避免维数灾难。根据限流措施优化配置问题的特点,提出先对候选可开断支路采用枚举法求解支路开断的优化方案,再采用改进离散粒子群算法(MDPSO)求解综合限流方案。新英格兰39节点系统的仿真计算表明,该方法具有良好的优化效果,且收敛速度快,验证了所提出的模型和算法的可行性。更多还原

【Abstract】 The optimal deployment of short-circuit current limiters for power system is a complex,nonconvex and nonlinear problem,and it is more complex with power flower constraints.Consequently,the relationship between node impedance matrix and current limiters was analyzed,and a variable selection strategy was proposed to reduce the number of variables to avoid the dimensionality curse.An enumeration method was used to get the optimal splitting of the candidate branches.A modified discrete particle swarm optimization algorithm (MDPSO) was used to get the final strategy.The feasibility of the proposed method was verified by the simulation results of the New England 39-bus system,showing good optimization results and fast convergence.更多还原