一种新型故障限流器选址与配置优化方法  

A novel fault current limiter location and configuration optimization method

作　　者：刘玲玲 金国锋 谭捷 赵树野 杨世峰 王川 袁铁江[2] LIU Lingling;JIN Guofeng;TAN Jie;ZHAO Shuye;YANG Shifeng;WANG Chuan;YUAN Tiejiang(State Grid East Inner Mongolia Economic Research Institute,Huhhot 010020,China;School of Electrical Engineering,Dalian University of Technology,Dalian 116024,China;Anhui Huidian Science Technology Co.,Ltd.,Hefei 230088,China)

机构地区：[1]国网内蒙古东部电力有限公司经济技术研究院,内蒙古呼和浩特010020 [2]大连理工大学电气工程学院,辽宁大连116024 [3]安徽徽电科技股份有限公司,安徽合肥230088

出　　处：《电力科学与技术学报》2021年第5期161-168,共8页Journal of Electric Power Science And Technology

基　　金：国家重点研发计划(2017YFB0903500);国家电网公司科技项目(SGTYHT/17-JS-199)。

摘　　要：随着电网规模日趋扩大,电网短路水平不断地攀升,安装限流器是一种经济可行的限流措施。首先,提出一种新型故障限流器选址优化与容量规划方法,基于电网节点与支路的分布特性,定义全网短路电流水平与开断裕度向量以及成本与电能损耗向量;然后,通过对所定义向量的赋范空间特性的研究,定义一类有具体物理含义的超空间范数作为各向量的距离度量,导出全网故障限流器配置方案的成本与增益指标,并构建限流器选址与容量配置的目标函数;最后,考虑电网安全运行约束,利用可变染色体长度的遗传算法进行求解,并基于IEEE 14母线标准试验系统进行算例分析,结果证明该方法的有效性与实用性。The scale of the power grid is expanding day by day,and the short-circuit short circuit level of the power grid is continuously rising.Installing the current limiter is an economically feasible current limiting measure.Under the background,this paper proposes a new fault current limiter location optimization and capacity planning method.Based on the distribution characteristics of the grid nodes and branches,the vector of short-circuit current level and breaking margin and the vector of the cost and power loss of the whole network are defined.By studying the normative space characteristics of the defined vectors,a class of hyperspace norms with specific physical meanings is defined as the measure of vector distance,the cost and gain indicators of the fault-limiting device configuration scheme of the whole network are derived,and the objective function of the current limiter location and capacity configuration is constructed.Considering the safe operation constraint of power grid,the paper uses a genetic algorithm with variable chromosome length to solve the problem.The example analysis is based on the IEEE 14 bus standard test system to verify the effectiveness and practicability of the proposed method.

关 键 词：故障限流器 电力系统优化选址 短路电流 遗传算法 赋范空间 

分 类 号：TM56[电气工程—电器]