电器与能效管理技术Issue(5)：25-33,9.DOI:10.16628/j.cnki.2095-8188.2025.05.004
基于隧道磁阻效应的剩余电流检测方法研究
Research on Residual Current Detection Method Based on Tunnel Magnetoresistance Effect
摘要
Abstract
Residual current is an important monitoring parameter in power systems.Aiming at the certain defects existing in the residual current detection methods such as electromagnetic current transformer method and magnetic modulation method when measuring various residual currents,and the respective shortcomings in terms of detection accuracy,sensitivity,zero drift and other performance aspects,a residual current detection method based on the tunnel magnetoresistance effect is proposed.The tunnel magnetoresistive sensor and the average value recognition method are used to measure and identify the waveform of various typical residual currents such as AC and pulsating DC.The influence of some parameters on the measurement is analyzed by building a model and simulation,and the particle swarm optimization algorithm is used to optimize the values of some parameters of the sensor to improve the performance of the sensor.Through experiments,the measurement accuracy reaches 5％and the recognition accuracy reaches 97％.关键词
隧道磁阻效应/剩余电流/波形测量与识别/粒子群优化算法Key words
tunnel magnetoresistance effect/residual current/waveform detection and recognition/particle swarm optimization(PSO)algorithm分类
信息技术与安全科学引用本文复制引用
王庚环,陈威,许海波..基于隧道磁阻效应的剩余电流检测方法研究[J].电器与能效管理技术,2025,(5):25-33,9.基金项目
浙江省"尖兵领雁+X"研发攻关计划(2024C01153) （2024C01153）
温州市揭榜挂帅项目(ZG2023032) （ZG2023032）
