电气二次继电保护装置的抗干扰设计与性能验证研究

Research on Anti-Interference Design and Performance Verification of Electrical Secondary Relay Protection Devices

摘要

电气二次继电保护装置是电力系统安全运行的关键环节，其抗干扰性能直接关系到保护动作的准确性与系统稳定性。随着电网智能化程度提升，电磁干扰、电源波动及通信噪声等问题愈加突出。本文基于干扰源与传导机理分析，提出硬件电磁兼容设计、信号隔离与滤波优化、软件容错与抗干扰算法协同的综合防护体系。通过仿真与实测验证发现，屏蔽与接地优化结合数字滤波技术可显著降低干扰幅值，提高系统抗扰度；自适应算法与数据冗余机制进一步增强装置稳健性。研究为提升继电保护装置可靠性和智能电网运行安全提供了重要技术支撑。

Abstract

Electrical secondary relay protection devices serve as critical components for the safe operation of power systems, where their anti-interference performance directly impacts the accuracy of protection actions and system stability. With the increasing intelligence of power grids, challenges such as electromagnetic interference, power fluctuations, and communication noise have become more prominent. Based on analysis of interference sources and transmission mechanisms, this paper proposes a comprehensive protection system integrating hardware electromagnetic compatibility design, optimized signal isolation and filtering, and collaborative software fault tolerance with anti-interference algorithms. Simulation and field tests demonstrate that combining shielding and grounding optimization with digital filtering technology can significantly reduce interference amplitude and enhance system immunity. Adaptive algorithms and data redundancy mechanisms further improve device robustness. This research provides crucial technical support for improving the reliability of relay protection devices and ensuring the safe operation of smart grids.

关键词

电气二次系统 / 继电保护 / 抗干扰设计

Key words

electrical secondary system / relay protection / anti-interference design

参考文献

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