基于电机参数失配的模型预测转速控制系统运行稳定性研究  

Research on operation stability for model predictive speed controlsystem based on parameter mismatch for motors

作　　者：牛峰[1,2] 高禄辰 胡艳芳 梁栋[1,2] 王笑雪 NIU Feng;GAO Luchen;HU Yanfang;LIANG Dong;WANG Xiaoxue(Key Lab of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China;State Key Lab of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学河北省电磁场与电器可靠性重点实验室,天津300130 [2]河北工业大学省部共建电工装备可靠性与智能化国家重点实验室,天津300130

出　　处：《电机与控制学报》2023年第6期55-63,共9页Electric Machines and Control

基　　金：国家自然科学基金(51707174)。

摘　　要：随着模型预测控制方法广泛应用于电机系统,电机控制性能显著提高,但电机参数失配等因素会影响模型预测控制系统运行性能,甚至会导致系统运行不稳定,相关运行稳定性问题缺乏深入研究。以永磁同步电机为控制对象,分析参数失配对模型预测转速控制系统运行稳定性的影响,针对传递函数和Lyapunov理论的局限性,提出一种基于状态方程的模型预测转速控制系统运行稳定性分析方法,探究模型参数失配对电机系统稳定运行区域的影响规律,并进一步明确系统稳定运行的边界条件,分析表明电机系统运行稳定性主要受电机电感和转动惯量影响。搭建永磁同步电机驱动系统实验平台验证了运行稳定性结论的正确性,研究结论能够为电机系统的稳定运行提供支撑,推动模型预测控制理论在电机领域的发展和应用。With the wide application of model predictive control in motor control system,motor control performance has been significantly improved,but factors such as motor parameter mismatch will affect the operational performance of the model predictive control system and even lead to unstable system operation,and the related operation stability of motor system is lack of in-depth research.Permanent magnet synchronous motor is taken as the control object,and the influence of parameter mismatch on operation stability of model predictive speed control system is analyzed.Considering the limitations of transfer functions and Lyapunov theory,the operation stability analyzing method of model predictive speed control system is proposed based on the state equations,while the influence law of model parameter mismatch on the motor stable operation area are studied.Furthermore,the marginal conditions for motor stable operation are determined.Theoretical analysis shows that the operational stability of the motor system is mainly affected by the motor inductance and rotational inertia.The experimental platform of permanent magnet synchronous motor was built to verify the correctness of theoretical conclusions.The research results support the stable operation of motor system and promote the development and application of model predictive control theory in the field of electric motors.

关 键 词：永磁同步电机 模型预测转速控制 参数失配 状态方程 稳定性 边界条件 

分 类 号：TM344.6[电气工程—电机]