基于最小暂降幅值搜索的电压监测点优化配置研究  

Optimal allocation method of voltage monitoring points

作　　者：祁永胜 QI Yongsheng(State Energy Group Henan Electric Power Co.,LTD.,Zhengzhou 450000,China)

机构地区：[1]国家能源集团河南电力有限公司,郑州450000

出　　处：《自动化与仪器仪表》2023年第2期37-41,共5页Automation & Instrumentation

摘　　要：针对电压监测时的监测盲区问题,建立了一种基于最小暂降幅值搜索的电压监测点优化配置方法。首先对电压暂降特征进行计算,依据电压阈值确立可观测域后构建出最恶劣可观察矩阵,最后依次建立电压暂降监测点优化配置方案。研究结果表明:该方法利用更少的监测点完成了对位置故障的监测,可有效消除监测盲区;随着凹陷区域不断扩大,监测点的数量与MRA法相比,不断减少,适应能力好;且该方法与其他方法相比,时间消耗较少,计算效率更高。由此说明,该基于最小暂降幅值搜索的电压监测点优化配置方法在实际运用中的有效性。Aiming at the problem of monitoring blind zone in voltage monitoring, an optimization method of voltage monitoring point configuration based on minimum sag amplitude search is established. Firstly, the characteristics of voltage sag are calculated, and then the observable region is established according to the voltage threshold. Then the worst observable matrix of various short-circuit fault situations is constructed. Finally, the optimal configuration scheme of voltage sag monitoring points is established in turn. The research results show that the method uses fewer monitoring points to complete the location fault monitoring, and can effectively eliminate the monitoring blind area;With the continuous expansion of the depression area, the number of monitoring points is decreasing compared with MRA method, and the adaptability is good;Compared with other methods, this method consumes less time and has higher computational efficiency. This shows that the method of optimal configuration of voltage monitoring points based on minimum sag amplitude search is effective in practical application.

关 键 词：电压暂降 最小暂降幅值 冗余度 优化配置 最恶劣矩阵 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置] TM72[自动化与计算机技术—控制科学与工程]