基于微分方程模型阻抗算法的综合应用  

Application of impedance algorithms based on differential equation model

作　　者：文尚坤[1] 袁兆强[1] 

机构地区：[1]三峡大学电气信息学院,湖北宜昌443002

出　　处：《电力自动化设备》2006年第2期47-49,共3页Electric Power Automation Equipment

摘　　要：对解微分方程算法作了改进,方法是通过对传统微分方程算法在有限时段上进行积分变换,借助积分减少高频分量的影响。通过数字仿真计算验证了改进后算法的优良估计性能,将之与基于微分方程模型的最小二乘法、全波傅里叶算法作了比较。并根据各算法的估计性能特点,提出了一种具有反时限特性的距离保护算法的实现方案。The algorithm for differential equation solution is improved,which adds integral transform in finite period to it to lessen the influence of high-frequency component. The digital simulative results show its good performance of estimation. It is compared with differential equation model-based least square algorithm and all-ware Fourier algorithm. According to the characteristics of different algorithms,an implementation scheme of distance protection with inverse time characteristic is brought forward.

关 键 词：微机距离保护 反时限 解微分方程算法 

分 类 号：TM44[电气工程—电器]