摘要
针对快速开关型故障限流器(fast switch fault current limiter,FSFCL)在电网中布点和容量优化问题,提出一种基于改进PSO-GSA算法的FSFCL全局优化配置模型。首先分析了FSFCL的基本原理,采用基于支路阻抗的灵敏度法缩小搜索空间;将限流效果及限流器成本作为优化目标,构造适应度函数;然后利用粒子群算法改进万有引力搜索算法(PSO-GSA)并对该混合算法进一步改进,制定算法优化流程。同时,由于依据人工经验在直接选择最终配置方案时可能会达不到最佳的效果,通过建立方案评价模型,依据相对熵原理确定各指标组合权重,再利用加权逼近理想点排序法(technique for order by similarity to an idea solution,TOPSIS)对方案进行排序,选取了最终配置方案。文中的方案评价模型可避免仅凭人工经验选择安装FSFCL线路的盲目性,有效地降低了电网规划成本。最后采用IEEE39节点系统算例仿真验证了该全局优化配置模型和方案评价模型的有效性。
Aiming at the problem of fast switch fault current limiter(FSFCL)in power grid,a global optimal configu⁃ration model of FSFCL based on improved PSO⁃GSA algorithm is proposed.Firstly,the basic principle of FSFCL is analyzed,and the sensitivity method based on branch impedance is used to narrow the search space.The current lim⁃iting effect and the cost of limiter are taken as optimization targets to construct the fitness function.Then,the particle swarm optimization algorithm is used to improve the gravitational search algorithm(PSO⁃GSA)and the hybrid algo⁃rithm is further improved.The algorithm optimization process is formulated.At the same time,due to the best results may not be achieved when selecting the final configuration scheme based on artificial experience.The scheme evalua⁃tion model is established.The weights of each index combination are determined according to the principle of relative entropy.The scheme is sorted by TOPSIS method,and the final configuration scheme is selected.The scheme evalua⁃tion model can avoid the blindness of installing FSFCL line only by manual experience and effectively reduce the cost of power grid planning.Finally,the effectiveness of the global optimal configuration model and the scheme eval⁃uation model is verified by the simulation of IEEE39 node system.
作者
王博
马莉
王国东
WANG Bo;MA Li;WANG Guodong(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;Ningxia Electric Power Research Institute,State Grid Ningxia Electric Power Company,Yinchuan 750001,China;Maintenance Company,State Grid Ningxia Electric Power Company,Yinchuan 750011,China)
出处
《高压电器》
CAS
CSCD
北大核心
2020年第6期189-196,共8页
High Voltage Apparatus
基金
国家电网公司总部科技项目(5229DK160005)。
