插入式永磁同步电主轴无传感器弱磁控制技术研究  

Research on Sensorless Field Weak Magnetic Control Technology of Plug in Permanent Magnet Synchronous Motor Spindle

作　　者：曹伟长 单文桃 吕冬喜 林奇 池云飞 CAO Weichang;SHAN Wentao;LV Dongxi;LIN Qi;CHI Yunfei(School of Mechanical Engineering,Jiangsu University of Technology,Changzhou Jiangsu 213001,China)

机构地区：[1]江苏理工学院机械工程学院,江苏常州213001

出　　处：《机床与液压》2024年第6期31-37,共7页Machine Tool & Hydraulics

基　　金：江苏省高校自科重大项目(19KJA510001)。

摘　　要：为了提高电主轴的电流利用率和鲁棒性,在矢量控制的基础上,对插入式永磁同步电主轴进行研究。对最大转矩电流比控制的四阶方程进行标幺化处理,采用拟合曲线的方式对方程进行近似求解;利用弱磁调速扩展主轴的速度范围。通过滑模观测器估算电主轴转速,为了改善传统滑模观测器的抖振问题,将Sigmoid函数引进传统滑模观测器中,通过李雅普诺夫判据对所提策略的稳定性进行推导说明。以实验室中高速磨削电主轴FL170-20-15为例,通过以上算法搭建基于MATLAB的仿真实验平台进行实验验证,并分析该控制策略的效果。实验结果表明:采用该方法的高速磨削电主轴减小了滑模观测的抖振现象,提高了控制系统的鲁棒性。In order to improve the current utilization and robustness of the motorized spindle,based on vector control,the plug in permanent magnet synchronous motorized spindle was studied.The fourth order equation of the maximum torque current ratio control was processed in normalization,and the equation was approximately solved by fitting the curve.The speed range of the spindle was expanded by using field weak magnetic speed regulation.The spindle speed was estimated by sliding mode observer.In order to overcome the chattering problem of traditional sliding mode observer,the Sigmoid function was introduced into the traditional sliding mode observer,the stability of the proposed strategy was deduced and explained by Lyapunov criterion.The high-speed grinding motorized spindle FL170-20-15 in the laboratory was taken as an example,and a simulation experimental platform based on MATLAB was built by using the above algorithm for experimental verification,and the effect of the control strategy was analyzed.The experimental results show that the chattering phenomenon of sliding mode observation is reduced and the robustness of the control system is improved.

关 键 词：插入式永磁同步电主轴 滑模观测器 弱磁调速 最大转矩电流比 

分 类 号：TH133[机械工程—机械制造及自动化]