基于改进粒子群算法的微直线电机动子位置辨识策略研究  

Research on the mover position detection strategy of micro linear motor based on improved particle swarm algorithm

作　　者：徐奇伟 龙胜 程智浩 张艺璇 支钞 XU Qi-wei;LONG Sheng;CHENG Zhi-hao;ZHANG Yi-xuan;ZHI Chao(State Key Laboratory of Power Transmission Equipment&System Security and New Technology,Chongqing University,Chongqing 400044,China;Institute of Electronic Engineering,Chinese Academy of Engineering Physics,Mianyang 621999,China)

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [2]中国工程物理研究院电子工程研究所,四川绵阳621999

出　　处：《电机与控制学报》2021年第8期56-66,共11页Electric Machines and Control

基　　金：重庆市自然科学基金(cstc2018jcyjA3148);重庆市研究生科研创新项目(CYS18071)。

摘　　要：本文针对一种新型平面结构的微直线电机展开研究,在分析其平面结构及其工作原理的基础上,探索新型电机内部电磁耦合对动子位置检测精确度的影响。基于新型微直线电机动子结构物理模型推导动子纵向磁场强度,并通过有限元仿真分析验证理论推导结果。利用隧道磁阻传感器监测磁场强度,本文提出一种基于纵向磁场检测的动子位置辨识策略,并采用改进粒子群算法减小动子辨识误差。最后,搭建基于隧道磁阻传感器的微直线电机测试平台进行实验研究,新型微直线电机的定位控制精确度小于30μm,实验结果验证了本文提出的动子位置辨识策略和误差校正方法的准确性和可行性。In this paper,micro-linear motor with plane structure is studied.Based on the analysis of its plane structure and its working principle,the influence of electromagnetic coupling inside the new motor on the position detection accuracy of the actuator was explored.The longitudinal magnetic field intensity of the actuator was deduced based on the physical model of the new micro-linear electric motor structure,and the theoretical results were verified by finite element simulation analysis.Using tunneling reluctance sensor to monitor the magnetic field intensity,a position identification strategy based on longitudinal magnetic field detection was proposed,and an improved particle swarm optimization algorithm was adoptedto reduce the identification error of the actuator.Finally,a micro-linear motor test platform based on tunnel-based reluctance sensor was built for experimental research.The positioning control accuracy of the micro-linear motor is less than 30μm.The experimental results verify the accuracy and feasibility of the proposed actuator position identification strategy and error correction method.

关 键 词：微直线电机 薄膜永磁体 纵向磁场 位置检测 隧道磁阻传感器 改进粒子群算法 

分 类 号：TM382[电气工程—电机]