摘要
为解决故障限流器在电网中的配置问题,提出了基于虚拟支路法的故障限流器优化配置方法。通过对母联位置的虚拟支路化,实现了故障限流器在线路与母联位置的同时优化。以故障限流器的限流成本与限流效果为优化目标,以节点短路电流、单个限流器电抗值为约束条件,对故障限流器的安装数量、阻抗值、安装位置综合考虑,建立多目标优化模型。结合改进的免疫算法,得到限流成本与限流效果综合最优方案。最后在IEEE39节点标准网络进行分析,验证了该方法在保证求解模型通用性的前提下,能得到比仅考虑线路安装情况下更全面更适合的优化方案,改进后的免疫算法较改进前能更好地收敛到最优解。
In order to solve the configuration problem of fault current limiter in power grid,an optimal configuration method of fault current limiter based on virtual branch method is proposed.Through the virtual branch processing of the bus connection,the fault current limiter installed in the branch and bus connection is optimized simultaneously.The current limiting cost and current limiting effect of fault current limiter are taken as the optimization objectives and the node short-circuit current and the reactance value of a single fault current limiter are taken as the constraint conditions to establish a multi-objective optimization model after taking the number,impedance value and installation location of fault current limiter into comprehensive consideration.Combined with the improved immune algorithm,an optimal scheme under the consideration of current limiting cost and current limiting effect is obtained.Finally,IEEE39 node standard network is analyzed to verify that this method can obtain a more comprehensive and more suitable optimization scheme than the one only considering the line installation case on the premise of ensuring the universality of the solution model,and the improved immune algorithm can converge to the optimal solution better than before.
作者
付蓉
乔胜亚
刘开培
莫文雄
陈俊
谭甜源
FU Rong;QIAO Shengya;LIU Kaipei;MO Wenxiong;CHEN Jun;TAN Tianyuan(School of Electrical and Automation,Wuhan University,Wuhan 430072,China;Guangzhou Power Supply Company,Guangdong Power Grid Co.,Ltd.,Guangzhou 510620,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2020年第10期3680-3687,共8页
High Voltage Engineering
基金
国家重点研发计划(2018YFB0904300)
中国南方电网公司科技项目(GZHKJXM20180055)。
关键词
故障限流器
虚拟支路
多目标优化
免疫算法
短路电流
fault current limiter
virtual branch
multi-objective optimization
immune algorithm
short-circuit current
