基于较高采样频率的MATLAB的微机保护傅氏算法仿真  

Simulation of Fourier Algorithm of Microcomputer Protection Based on High Sampling Frequency by MATLAB

作　　者：韩笑[1] 王凡 孙杰 蒋剑涛 HAN Xiao;WANG Fan;SUN Jie;JIANG Jiantao(Nanjing Institute of Technology,Nanjing 211100,China)

机构地区：[1]南京工程学院,江苏南京211100

出　　处：《电工技术》2021年第8期140-142,168,共4页Electric Engineering

摘　　要：在微机保护中,傅氏算法和微分算法都是常用的算法,随着采样频率的提高,微机保护对算法的速度和精度有着更高的要求。通过MATLAB对各算法进行仿真比较,发现采样频率较高的半波傅氏算法有着良好的精度和速度,可替代采样频率较低的全波傅氏算法和微分算法。Fourier algorithm and differential algorithm are commonly used in the microcomputer protection.With the development and improvement of sampling frequency,microcomputer protection has even higher requirements on the speed and accuracy of the algorithm.In this paper,after simulation and comparison of various algorithms by MATLAB,it is found that the half-wave Fourier algorithm with higher sampling frequency has good accuracy and speed,and can replace the full-wave Fourier algorithm and differential algorithm with lower sampling frequency.

关 键 词：采样频率 全波傅氏算法 半波傅氏算法 微分算法 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]