基于广义预测控制和滑模观测器的永磁同步电机级联控制  

Cascade Control of Permanent Magnet Synchronous Motor Based on Generalized Predictive Controland Sliding Mode Observer

作　　者：王鹏程 崔佳伦 申江卫[1] 李万超 WANG Peng-cheng;CUI Jia-lun;SHEN Jiang-wei;LI Wan-chao(School of Transportation Engineering,Kunming University of Science and Technology,Yunnan 650500,China;Kunming Branch of the 705 Research Institute,China Shipbuilding Industry Corporation,Yunnan 650101,China)

机构地区：[1]昆明理工大学交通工程学院,云南650500 [2]中国船舶重工集团公司第705研究所昆明分部,云南650101

出　　处：《组合机床与自动化加工技术》2022年第10期83-87,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：云南省高校科技创新团队支持计划资助(140520180004)。

摘　　要：为改进永磁同步电机(permanent magnet synchronous motor,PMSM)的动态性能和鲁棒性,提出了一种基于非线性广义预测控制(nonlinear generalized predictive control,NGPC)策略和滑模扰动观测器(sliding mode disturbance observer,SMDO)的级联控制策略。在永磁同步电机数学模型的基础上,根据NGPC策略设计转速-电流级联控制器。为进一步消除NGPC策略中由电机参数不匹配和外部扰动产生的稳态误差,设计了一种新型趋近率的SMDO对系统扰动估算并对NGPC控制器前馈补偿,充分抑制扰动对系统的影响。为验证策略的可行性与稳定性,开展了仿真试验,通过d-q轴电流绝对误差、超调量等对比分析,结果表明所设计控制策略具有良好的静、动态性能和强鲁棒性。In order to improve the dynamic performance and robustness of permanent magnet synchronous motor(PMSM),a cascade control strategy based on nonlinear generalized predictive control(NGPC)and sliding mode disturbance observer(SMDO)is proposed.Based on the mathematical model of permanent magnet synchronous motor,the speed current cascade controller is designed according to ngpc strategy.In order to further eliminate the steady-state error caused by motor parameter mismatch and external disturbance in ngpc strategy,a new smdo with reaching rate is designed to estimate the system disturbance and feedforward compensate the ngpc controller to fully suppress the influence of disturbance on the system.In order to verify the feasibility and stability of the strategy,simulation experiments are carried out.The absolute error and overshoot of d-q axis current are compared and analyzed,The simulation results show that the designed control strategy has good static and dynamic performance and strong robustness.

关 键 词：广义预测控制 滑模扰动观测器 永磁同步电机 

分 类 号：TH165[机械工程—机械制造及自动化] TG68[金属学及工艺—金属切削加工及机床]