卡尔曼滤波技术在距离保护上的应用

THE APPLICATION OF KALMAN FILTERING TECHNIQUEIN DISTANCE PROTECTION

本文介绍了利用卡尔曼滤波算法，实施微机距离保护的方法。该设计方案共分五个主要部分：故障检测、故障后电流和电压的估计（滤波）、故障分类、区域计算和故障定位。并着重介绍了在向量信号处理器ＴＭＳ３２０上完成卡尔曼滤波算法的方法。实验结果表明，该方案的计算精度、收敛速度和计算的工作量俱称满意。

This paper presents a set of micro-computer distance protection scheme using Kalman Filtering algorithms.The scheme can be divided into five major components:fault detection,postfault current and voltage estimation(filtering),fault classification,zone computation,and fault location.This research focuses on the implementation of filtering algorithms on the Vector Signal Processor(VSP)TMS320.The test results show that the precision,convergency speed and the quantity of the calculation are all satisfied.