基于卡尔曼滤波的交流输电线路暂态干扰源识别方法  

Identification Method of Transient Disturbance Source ofAlternating Current Transmission Line Based on Kalman Filtering

作　　者：王昊 李明远 孙伟楠 黄文宇 Wang Hao;Li Mingyuan;Sun Weinan;Huang Wenyu(Jiangsu Power Transmission and Transformation Co.,Ltd.,Nanjing Jiangsu 210028,China)

机构地区：[1]江苏省送变电有限公司,江苏南京210028

出　　处：《电气自动化》2023年第5期1-2,6,共3页Electrical Automation

基　　金：国网江苏省送变电有限公司科技项目“架空输电线路参数测试方法研究与应用”(J2021087)。

摘　　要：为识别交流输电线路上发生的不同暂态干扰源以及干扰变化,提出基于卡尔曼滤波的交流输电线路暂态干扰源识别方法。分析交流输电线路中的不同干扰源的特征,区分雷击暂态干扰与故障暂态干扰,将干扰源特征输入至卡尔曼滤波器中,通过递归滤波的方式判断滤波系统的最佳预测值。经试验验证:所提方法具有较低的识别误差,且能够精准识别电压均值与电流瞬时功率的变化,可精确识别不同类型的干扰源。In order to identify different transient disturbance sources and disturbance changes on alternating current(AC) transmission lines,a method for identifying transient disturbance sources in AC transmission lines based on Kalman filtering was proposed.By analyzing the characteristics of different interference sources in AC transmission lines,lightning transient interference and fault transient interference were distinguished,and then the characteristics of interference sources were input into Kalman filter,and then the best prediction value of filter system was judged by recursive filtering.It has been verified by experiments that the proposed method has a low identification error,and can accurately identify the changes of the average voltage and the instantaneous power of the current,and can accurately identify different types of interference sources.

关 键 词：卡尔曼滤波 交流输电线路 暂态干扰源 雷击干扰 电压零膜 

分 类 号：TM73[电气工程—电力系统及自动化]