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新能源电力系统国家重点实验室(华北电力大学),北京市 102206
李振钊(1998—),男,硕士研究生,主要研究方向:电力系统继电保护。E-mail:hd_lzz@sina.com
王增平(1964—),男,通信作者,教授,博士生导师,主要研究方向:新能源电力系统继电保护新原理与新技术、基于信息融合的系统安全保护。E-mail:wangzp1103@sina.com
张玉玺(1998—),男,硕士研究生,主要研究方向:电力系统继电保护。E-mail:zhangyuxi_ncepu@163.com
收稿日期:2021-05-12,
修回日期:2021-09-14,
网络出版日期:2021-11-10,
纸质出版日期:2021-12-25
移动端阅览
李振钊,王增平,张玉玺等.基于升维线性规划的主动配电网故障区段定位方法[J].电力系统自动化,2021,45(24):122-132.
LI Zhenzhao,WANG Zengping,ZHANG Yuxi,et al.Fault Section Location Method for Active Distribution Network Based on Linear Programming with Ascending Dimension[J].Automation of Electric Power Systems,2021,45(24):122-132.
李振钊,王增平,张玉玺等.基于升维线性规划的主动配电网故障区段定位方法[J].电力系统自动化,2021,45(24):122-132. DOI: 10.7500/AEPS20210512007.
LI Zhenzhao,WANG Zengping,ZHANG Yuxi,et al.Fault Section Location Method for Active Distribution Network Based on Linear Programming with Ascending Dimension[J].Automation of Electric Power Systems,2021,45(24):122-132. DOI: 10.7500/AEPS20210512007.
分布式电源接入配电网导致传统故障定位方法面临巨大挑战。为此,提出一种基于升维线性规划的主动配电网故障区段定位方法。首先,以状态逼近思想和最小故障集理论为基础,构建适用于整数线性规划的新型目标函数。然后,通过升维将多点故障区段定位问题转变为系数矩阵高度稀疏的0-1整数线性规划问题,提高区段定位结果的可靠性。最后,使用MATLAB对整数线性规划问题进行求解。仿真结果表明:该方法具有一定的容错能力,不受畸变类型的影响,求解速度快,可以适应分布式电源的动态投切以及分布式电源通过“T”接方式接入配电网的供电模式。
The traditional fault location method is confronted with great challenges when the distributed generators is connected to the distribution network. Therefore
a fault section location method for active distribution network based on linear programming with ascending dimension is proposed. Firstly
a new objective function for integer linear programming is constructed based on the idea of state approximation and the theory of the minimum fault set. Secondly
the multi-point fault section location problem is transformed into a 0-1 integer linear programming problem with highly sparse coefficient matrix by ascending dimension so that the reliability of section location results is improved. Finally
MATLAB is used to solve the integer linear programming problem. The simulation results show that the method has a certain fault-tolerant ability and fast solution speed
and is not affected by the distortion types. It can adapt to the dynamic switching of the distributed generator and the power supply mode that the distributed generator is connected to the distribution network through the “T” connection.
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