继电保护装置递推算法的容错机制

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摘要递推傅里叶算法是常用的继电保护数字信号处理算法,其特点是利用上次计算结果推算本次结果,优点是计算效率非常高。但是,递推算法具有记忆效应,偶然因素导致的错误会一直保持且不易察觉,给继电保护装置的安全稳定运行带来隐患。因此,本文提出一种适用于递推算法的容错机制,可消除递推算法的记忆效应,防止因偶然出错导致不可恢复的计算偏差,从而有效防范此类问题引发继电保护误动或拒动。

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关键词 ：继电保护, 递推算法, 容错, 记忆效应

Abstract：Recursive Fourier algorithm is a commonly used digital signal processing algorithm for protection relays. Its characteristic is to use the last calculation result to calculate the current result. Its calculation efficiency is very high. However, the recursive algorithm has a memory effect. Errors caused by accidental factors will be kept and be difficult to detect, bringing hidden dangers to the operation of the protection device. In this paper, a fault-tolerant mechanism suitable for recursive algorithm is proposed to eliminate the memory effect and prevent irrecoverable calculation deviation caused by occasional or accumulated errors, thus effectively preventing such problems from causing misoperation or failure of protection devices.

Key words： protection relays recursive algorithm fault-tolerant memory effect

收稿日期: 2024-09-18

作者简介: 王亮（1973—）,男,江苏省南京市人,硕士,高级工程师,主要从事继电保护方向研究工作。

引用本文:

王亮, 吕航, 顾乔根, 张晓宇, 李力. 继电保护装置递推算法的容错机制[J]. 电气技术, 2025, 26(2): 81-84. WANG Liang, LÜ Hang, GU Qiaogen, ZHANG Xiaoyu, LI Li. Fault-tolerant algorithm for recursive algorithm in protection relays. Electrical Engineering, 2025, 26(2): 81-84.

链接本文:

https://dqjs.cesmedia.cn/CN/Y2025/V26/I2/81