摘要
过调制区域的有效利用对于永磁同步电机在高速运行状态下的母线电压利用率以及转矩输出能力提升具有重要意义。传统的过调制策略更多强调对于直流母线电压利用率的提升,忽略了高速状态下、动态过程中电机控制系统的动态性能。为此,提出了一种基于动态电压修正的动态过调制策略,在提升直流母线电压利用率的基础上,有效改善了高速状态下、工况突变过程中控制系统的动态性能。仿真与实验结果表明了所提算法的可行性与优越性。
The effective utilization of an overmodulation region is of significance to improving the bus voltage utilization ratio and torque output capability of a permanent magnet synchronous motor(PMSM)under high-speed operation.However,the conventional overmodulation strategy emphasizes more on the improvement of DC bus voltage utilization ratio while ignoring the dynamic performance of the motor control system in the dynamic process of high-speed conditions.A dynamic overmodulation strategy based on dynamic voltage modification is proposed,which can effectively improve the dynamic performance of the control system in the mutation process of high-speed conditions based on increasing the DC bus voltage utilization ratio.Simulation and experimental results show the feasibility and superiority of the proposed algorithm.
作者
李银露
舒志兵
LI Yinlu;SHU Zhibing(Department of Automation Engineering,Nanjing Institute of Mechanical and Electrical Technology,Nanjing 211306,China;Institute of Motion Control,Nanjing University of Technology,Nanjing 211816,China)
出处
《电源学报》
CSCD
北大核心
2022年第5期187-195,共9页
Journal of Power Supply
基金
江苏省高等学校自然科学研究面上资目(18KJB470009)。
关键词
永磁同步电机
矢量控制
动态过调制
动态性能
permanent magnet synchronous motor(PMSM)
vector control
dynamic overmodulation
dynamic performance
