摘要
当配电网中发生故障时,需要快速准确定位故障,以避免更大损失。针对此问题,提出一种考虑灵活性分布式电源的配电网故障定位方法。首先,构建一个基于代数运算的开关函数,其可以适应分布式电源接入;其次,针对传统算法易造成局部收敛问题,提出一个线性整数规划模型和求解方法,以定位出故障区段。该方法不仅可以适应分布式电源投切,还有较高容错性;最后,在MATLAB环境下,利用CPLEX求解器求解该模型,仿真结果表明所提方法能够快速准确定位出故障区段。
When faults occur in distribution networks,it is necessary to locate them quickly and accurately to avoid greater losses.To address this issue,this paper proposes a fault location method for distribution networks that considers the flexibility of distributed power sources.Firstly,a switch function based on algebraic operations is constructed to accommodate the connection of distributed power sources.Secondly,to address the issue of local convergence that traditional algorithms may cause,a linear integer programming model and solution method are proposed to locate the fault section.This method not only accommodates the switching of distributed power sources but also has a high fault tolerance.Finally,the proposed method is implemented in the MATLAB environment using the CPLEX solver,and simulation results demonstrate that the method can accurately and quickly locate the fault section.
作者
王欣
WANG Xin(State Grid Hubei Electric Power Co.,Ltd.Ezhou Power Supply Company,Ezhou 436000,China)
出处
《电气开关》
2025年第3期72-74,77,共4页
Electric Switchgear
关键词
分布式电源
配电网
故障定位
distributed power generation
fault location
distribution network
