双定子直线振荡电机动子位移自传感技术研究  

Research on Self-Sensing Technique of Mover Displacement for Linear Oscillatory Motor with Two Separated Stators

作　　者：于明湖[1] 张玉秋[1] 叶云岳[1] 卢琴芬[1] 夏永明[2] 

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]浙江理工大学机控学院,杭州310000

出　　处：《传感技术学报》2010年第6期803-807,共5页Chinese Journal of Sensors and Actuators

基　　金：国家教育部博士点基金资助(200803350051)

摘　　要：基于建立的双定子直线振荡电机系统数学模型,提出了电机动子位移自传感算法,通过对于电机端电压及电流信号的处理实现了动子位移的自传感。在此基础上,通过实验对此算法进行了验证。实验结果显示,在有效行程范围(20mm)内,定频变行程和谐振点变行程控制方式下的估算行程的最大绝对误差分别为0.4mm和0.3mm,最大相对误差分别为4.76%和3.7%,可以满足控制要求。此算法可用于直驱压缩机的变行程控制及上死点控制。Based on mathematical model of the motor system,the self-sensing algorithm of mover displacement for the linear oscillatory motor with two separated stators is established,which is achieved through the voltage and current signal processing.Then,the method is verified by corresponding experiment.Under two control styles of constant frequency variable displacement and resonance variable displacement,the results show that the maximum absolute error of estimated stroke are 0.4 mm and 0.3 mm,and the maximum relative error are 4.76 % and 3.7 % respectively,which are suitable to actual control requirement.This method could be applied in the variable stroke control and top dead point control of directly driven compressor.

关 键 词：直线振荡电机 位移 自传感 气体力负载 

分 类 号：TM359.4[电气工程—电机]