基于TMR传感器阵列的微电网过载电流检测方法  

Micro grid overload current test method based on TMR sensor array

作　　者：谢冰 张杲 秦玉新 陈昌鑫 XIE Bing;ZHANG Gao;QIN Yuxin;CHEN Changxin(Department of Network Security,Henan Police College,Zhengzhou 450046,China;School of Intelligent Engineering,Zhengzhou University of Aeronautics,Zhengzhou 450015,China;School of Electrical and Control Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]河南警察学院网络安全系,郑州450046 [2]郑州航空工业管理学院智能工程学院,郑州450015 [3]中北大学电气与控制工程学院,太原030051

出　　处：《中南民族大学学报（自然科学版）》2023年第3期343-348,共6页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：河南省科技攻关资助项目(222102210041,222102320191);河南省高等学校重点科研资助项目(22A510002);河南警察学院院级科研资助项目(HNJY-2022-25)。

摘　　要：过载电流状态检测是微电网安全稳定运行的重要内容,针对单个传感器的测试误差问题以及测试过程中外界磁场的干扰问题,采用高灵敏度的TMR传感器构成传感阵列,减小微电网过载电流检测的测试误差.通过Ansoft Maxwell分析TMR传感器的安装位置,然后对TMR传感器阵列的模型进行了分析;最后通过测试实验,验证了所提测试方案的可行性.实验结果表明:TMR传感器阵列可以完成过载电流的检测,相比于单个TMR传感器,使用TMR传感器阵列可以将过载电流的峰值误差减少到0.12%.这对于微电网运行的状态监测提供了强有力的数据支撑.The detection of overload current state is an important part of the safe and stable operation of micro grid.Aiming at the test error of single sensor and the interference of external magnetic field during the test,the high sensitive tunneling magnet oresistance sensor is used to form the sensor array to reduce the test error of overload current detection of micro grid.The installation position of TMR sensor is analyzed througth Ansoft Maxwell,then the model of TMR sensor array is analyzed,and test verification and data analysis processing are carried out in the laboratory.The experimental results show that the TMR sensor array can detect the overload current.Compared with a single TMR sensor,the TMR sensor array can reduce the peak error of the overload current to 0.12%,which provides a strong data support for the status monitoring of the micro-grid operation.

关 键 词：隧道磁阻 TMR传感器阵列 微电网 过载电流检测 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]