摘要
针对永磁同步电机负载转矩波动及负载转动惯量的变化对控制性能的影响,采用一种模型参考自适应控制方法实时辨识转动惯量,利用设计的扰动补偿观测器,结合辨识出的转动惯量估算出负载转矩值,然后将观测的负载转矩转换为观测电流值与给定电流值的误差,从而对控制系统进行前馈补偿,以减小转矩电流脉动,提高系统的抗扰能力和响应速度。通过模型在环实物仿真平台验证,所采用的控制策略对系统的抗扰性能和响应速度都有很好的改善效果,增强了系统的鲁棒性。
In view of the negative influence of load torque fluctuation and load moment of inertia exerted on the control performance of permanent magnet synchronous motor,a model reference adaptive control method has thus been adopted to identify the moment of inertia in real time.By using the designed disturbance compensation observer,the load torque value combined with the identified moment of inertia can be estimated,with the observed load torque converted into the observed current value for the error with the given current value.Thus,the feed forward compensation of the control system helps to reduce the torque current ripple,thus improving the anti-interference ability and response speed of the system.Based on the verification of model in the loop physical simulation platform,it is testified that the control strategy has a good effect on the anti-interference performance and response speed of the system,thus enhancing the robustness of the system.
作者
李江坪
王兵
颜伟平
郭皓源
李罗
LI Jiangping;WANG Bing;YAN Weiping;GUO Haoyuan;LI Luo(College of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China;Hunan Provincial Key Laboratory of Electric Drive Control and Intelligent Equipment,Hunan University of Technology,Zhuzhou Hunan 412007,China)
出处
《湖南工业大学学报》
2022年第1期53-60,共8页
Journal of Hunan University of Technology
基金
湖南省自然科学基金资助项目(2018JJ2093)
湖南省教育厅科研基金资助项目(21C0446)。
关键词
永磁同步电机
滑模控制
扰动补偿观测器
转动惯量辨识
模型参考自适应
permanent magnet synchronous motor
sliding mode control
disturbance compensation observer
moment of inertia identification
model reference adaptation
作者简介
李江坪(1995-),男,四川巴中人,湖南工业大学硕士生,主要研究方向为电力传动技术及其故障诊断,E-mail:lsy75313@qq.com;通信作者:王兵(1965-),男,湖南株洲人,湖南工业大学副教授,主要研究方向为特种电机及其控制,E-mail:wb1112@126.com。
