摘要
针对在永磁同步电机矢量控制系统中应用模型预测控制方法设计控制器时依赖电机数学模型参数,当电机运行过程中参数变化时,引起控制器参数与电机参数失配,导致系统控制性能降低。提出一种无模型自适应预测控制方法,利用系统输入输出数据和时变的伪偏导数建立预测模型;又由于无模型自适应预测控制方法没有反馈校正环节,易受外部扰动的影响,设计一种新型高阶滑模补偿器作为校正部分,以提高控制系统的鲁棒性且抑制滑模自身的抖振,最后MATLAB仿真验证了无模型自适应高阶滑模补偿预测控制方法的优越性。
Aiming at the problem that using model predictive control method designs controllers which relies on the mathematical model parameters of PMSM in vector control system.It will cause the parameters mismatch of controllers and motor when the pa-rameters change at process of running.Thus the control performance is poor.So raising a method celled model-free adaptive pre-dictive control.The predictive model is established by using the input and output data of the system and the time-varying pseudo-partial derivatives;because model-free adaptive predictive control method has no feedback correction link and is susceptible to ex-ternal disturbance.A new high-other sliding mode compensator is designed as correction part,which is used to enhance robust-ness of control system and restrain sliding mode chattering by itself.Finally,MATLAB simulation proves the superiority of the model-free adaptive high-order sliding mode compensation predictive control method.
作者
刘慧博
张翀
黄前柱
LIU Hui-bo;ZHANG Chong;HUANG Qian-zhu(Inner Mongolia University of Science and Technology,Information Engineering Institute,Inner Mongolia Baotou 014010,China)
出处
《机械设计与制造》
北大核心
2024年第4期165-171,共7页
Machinery Design & Manufacture
基金
内蒙古自治区自然科学基金项目(2019MS05057)。
