电力推进永磁同步电机的无传感器控制研究  

Research on Sensorless Control of Permanent Magnet Synchronous Motor for Electric Propulsion

作　　者：张新宇 高良超 南盟 王卓 ZHANG Xinyu;GAO Liangchao;NAN Meng;WANG Zhuo(Research Institute of China State Shipbuilding Corporation Limited(Experimental Research Division),Harbin 100010,China)

机构地区：[1]中国船舶集团有限公司第七○三研究所(试验研究事业部),哈尔滨100010

出　　处：《微特电机》2024年第11期60-65,共6页Small & Special Electrical Machines

摘　　要：为提高电力推进无传感器永磁同步电机的稳定性,基于两相旋转坐标系和电机矢量模型,提出一种改进的电机滑模观测器。为增强滑模观测器的抗干扰性能和控制精度,采用sigmoid函数作为滑模观测器开关函数,并引入模糊控制策略改进开关增益;然后采用ACO算法优化滑模观测器的可调参数。仿真结果表明,该改进滑模观测器可提高电力推进无传感器永磁同步电机对转速和转矩控制的稳定性,使d、q轴电流更平稳,提高永磁同步电机的转子位置估计精度,降低位置估计误差。To improve the stability of sensorless permanent magnet synchronous motors for electric propulsion,an improved motor sliding mode observer was designed based on two-phase rotating coordinate system and motor vector model.In order to enhance the anti-interference performance and control precision of the sliding mode observer,sigmoid function was used as the switching function of the sliding mode observer,and fuzzy control strategy was introduced to improve the switching gain.The ACO algorithm was adopted to optimize the adjustable parameters of the sliding mode observer.The simulation results show that the improved sliding mode observer could improve the stability of rotating speed and torque control of sensorless permanent magnet synchronous motors,make the d-axis and q-axis currents more stable,improve the rotor position estimation precision of permanent magnet synchronous motors,and reduce position estimation errors.

关 键 词：永磁同步电机 滑模变结构控制 电力推进 滑模观测器 蚁群算法 

分 类 号：TM351[电气工程—电机]