基于Simulink的零磁通微电流传感器的仿真与实验  

Simulation and Experiment of Zero Flux Current Sensor Based on Simulink

作　　者：王文[1] 吝伶艳[1] 乔记平[1] 宋建成[1] 

机构地区：[1]太原理工大学矿用智能电器技术国家地方联合工程实验室,太原030024

出　　处：《传感技术学报》2017年第9期1343-1347,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金面上项目(51377113);山西省研究生联合培养基地人才培养项目(2016JD17)

摘　　要：根据零磁通补偿原理,基于Simulink平台建立了带有零磁通补偿的微电流传感器模型。为了快速准确地补偿微电流传感器的误差,提高微电流传感器的测量精度。该模型中的补偿单元采用有源与无源相结合的方法对对输出电流进行相位和幅值补偿。通过对仿真结果的分析,证明了该模型的正确性和有效性。并根据模型研制出了一种零磁通微电流传感器,对其误差进行测量。结果表明利用该补偿方法时电流传感器在测量微安级到毫安级的工频电流时准确度可达到0.2级,且补偿方式方便快捷。This paper establishes a model of current sensor based on Simulink according to the principle of zero flux.In order to compensate error of micro current sensor accurately,and improve the accuracy measured,active compensation and passive compensation are combined to decrease current sensor measurement error in the area of small current. Simulation results are given to demonstrate the validity and correctness of the model. On the basis of established model,this paper develops a micro current sensor,and its error has been measured. The results show that the accuracy of the current sensor can reach to grade 0.2 by using the above compensating process,when the measuring range is from milliampere to microampere.

关 键 词：微电流传感器 零磁通 有源补偿 无源补偿 

分 类 号：TM452[电气工程—电器]