基于改进型滑模观测器的电主轴STA控制策略  

STA Control Strategy of Motorized Spindle Based on Improved Sliding Mode Observer

作　　者：陈昆鹏 单文桃 曹伟长 何之渊 CHEN Kunpeng;SHAN Wentao;CAO Weichang;HE Zhiyuan(Institute of Mechanical Engineering,Jiangsu University of Technology,Changzhou 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：《机械制造与自动化》2025年第1期67-71,80,共6页Machine Building & Automation

基　　金：江苏省高校自科重大项目(19KJA510001);江苏省青蓝工程中青年学术带头人项目(KYQ20004)。

摘　　要：为了改善永磁同步电主轴调速的观测精度,解决传统滑模观测器控制存在抖振的现象,提出一种将改进型滑模观测器与STA滑模相结合的控制方式。将传统的PI转速控制器替换成STA滑模控制器。采用积分滑模控制和饱和函数理论来搭建改进型滑模观测器仿真模型,李雅普诺夫判据可以为这一策略的稳定性提供有力的支持。搭建基于Matlab的仿真实验平台进行实验验证表明:采用该方法的永磁同步电主轴无位置传感器控制系统抗干扰能力及鲁棒性较好,有利于降低滑模抖振,改善电主轴系统的稳定性。To better the observation accuracy of speed regulation of permanent magnet synchronous motorized spindle and solve the problem of chattering in traditional sliding mode observer control,a control method combining the improved sliding mode observer with STA sliding mode is proposed.The traditional PI speed controller is replaced by STA sliding mode controller.Integral sliding mode control and saturation function theory are applied to build the simulation model of the improved sliding mode observer.Lyapunov criterion can be of strong support for the stability of the proposed strategy.The experiment verifies that the sensorless control system of permanent magnet synchronous motorized spindle with this method has good anti-interference ability and robustness,which is conducive to reducing sliding mode chattering and improving the stability of motorized spindle system.

关 键 词：高速电主轴 滑模观测器 STA滑模控制 饱和函数 矢量控制 

分 类 号：TM341[电气工程—电机]