考虑多场景运行的电网继电保护定值区正确性校核方法  

Verification Method for Correctness of Relay Protection Setting Zone in Power Grid Considering Multi Scenarios Operation

作　　者：李正新 李波 陈斗沙 李忠 罗琨 刘丽 张增权 Li Zhengxin;Li Bo;Chen Dousha;Li Zhong;Luo Kun;Liu Li;Zhang Zengquan(Bijie Power Supply Bureau,Guizhou Power Grid Co.,Ltd.,Bijie Guizhou 551700,China;Beijing Zhongheng Borui Digital Power Technology Co.,Ltd.,Beijing 100085,China)

机构地区：[1]贵州电网有限责任公司毕节供电局,贵州毕节551700 [2]北京中恒博瑞数字电力科技有限公司,北京100085

出　　处：《电气自动化》2024年第4期44-46,49,共4页Electrical Automation

基　　金：贵州电网有限责任公司科技项目“基于可视化与专家系统的地区电网保护定值配置及变更智能生成技术研究”(GZKJXM20200641)。

摘　　要：为了确保继电装置在不同运行场景中能稳定运行,提出一种考虑多场景运行的电网继电保护定值区正确性校核方法。根据继电保护装置的瞬时流速,计算出装置运行方式,结合关联矩阵、支路阻抗矩阵、信息矩阵以及多场景区域矩阵计算出每个场景抗阻,并利用相间距离原则完成对继电保护定值区的正确性校核。试验结果表明:所提方法的校核误差小、时间短和校核能力强。所提方法有利于提高故障处理的速度和准确性,确保电网的稳定运行。In order to ensure the stable operation of relay devices in different operating scenarios,a method for verifying the correctness of relay protection setting areas in power grids considering multi scenarios operation was proposed.Based on the instantaneous flow rate of the relay protection device,the operation mode of the device was calculated,and the impedance of each scene was calculated by combing the correlation matrix,branch impedance matrix,information matrix,and multi scenario area matrix,and the correctness of the relay protection setting area was checked by using the principle of phase-to-phase distance.The experimental results show that the proposed method has small verification error,short time,and strong verification ability.The proposed method is beneficial for improving the speed and accuracy of fault handling,ensuring the stable operation of the power grid.

关 键 词：多场景 继电保护 定值区 相间距离 正确性校核 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]