电动机微机保护算法分析研究  

Analysis and research on microcomputer-based algorithm of motor protection

作　　者：王伟 王静文 

机构地区：[1]鄂尔多斯应用技术学院电子信息工程系,内蒙古鄂尔多斯017010 [2]鄂尔多斯应用技术学院土木工程系,内蒙古鄂尔多斯017010

出　　处：《微型机与应用》2017年第14期16-19,22,共5页Microcomputer & Its Applications

基　　金：内蒙古自治区级大学生创新创业训练项目基金(201614532004)

摘　　要：针对电动机微机保护的软件算法进行了研究,介绍了微机保护中基于正弦函数模型和基于周期函数模型的常见算法,对各算法的原理进行了阐述,通过对比被测量的计算值和实际值,比较了各算法的运算速度和滤波性能,并重点分析了其计算精度,得出傅里叶算法适用于采样计算电力系统故障量的结论,为研究和确定电动机微机保护的软件设计提供理论参考。The algorithm of microcomputer protection for motor is studied. Some common algorithms in microcomputer-based protection are introduced, which are mainly divided into two categories： the sine function model algorithm and the periodic function model algorithm. The principle of each algorithm is expounded. By comparing the calculated value of each algorithm and the actual value, the calculating speed and filtering performance are listed, and the calculation precision is analyzed emphatically. It is concluded that Fourier algorithm is a suitable method for fault quantity sampling calculation of power system. It provides a theoretical reference for software research and design of the microcomputer-based protection.

关 键 词：微机保护 算法设计 性能分析 

分 类 号：TP311.11[自动化与计算机技术—计算机软件与理论]