摘要
针对步进电机在开环运行时容易受到摩擦力、负载变化、电磁干扰等扰动,导致其运行中出现转速不平稳的现象,提出一种结合T-S模糊控制的抗干扰模型。该方法采用T-S模糊模型将高度非线性的二相混合式步进电机线性化逼近,为抵抗持续随机干扰,再将线性化逼近的模型离散化。通过设计对应的扰动观测器,对外部干扰进行预测,使用预测值来补偿外部干扰,以达到抗干扰的目的。仿真结果显示,与开环控制相比,该方法能较好地降低干扰影响,使步进电机的运行更加平稳。
The stepper motor,which is easy to be disturbed by friction force,load changes,electromagnetic interference and other disturbances,is running unstably in the open loop.An antiinterfernce model combining T-S fuzzy control was proposed.The highly nonlinear two-phase hybrid stepping motor was linearized by T-S fuzzy model,and then the linearized approximation was discretized to resist the continuous random disturbance.The disturbance observer was designed to predict the external disturbance,and the predicted value was used to compensate the external disturbance in order to achieve the purpose of anti-interference.The simulation results show that this method can more efficiently reduce the disturbance than the open-loop control and can make the stepper motor run more smoothly.
作者
郑秋桐
孟婥
杜诚杰
李锐
ZHENG Qiutong;MENG Chuo;DU Chengjie;LI Rui(College of Mechanical Engineering,Donghua University,Shanghai 201620,China)
出处
《东华大学学报（自然科学版）》
CAS
北大核心
2019年第6期875-880,共6页
Journal of Donghua University(Natural Science)
基金
教育部优秀创新团队滚动支持计划资助项目（IRT_16R12）
关键词
T-S模糊模型
步进电机
抗干扰控制
干扰补偿
T-S fuzzy model
stepper motor
anti-interference control
interference compensation
