基于虚拟直流信号注入的内置式永磁同步电动机MTPA控制方法  

Control Method of Interior Permanent Magnet Synchronous Motor Based on Virtual DC Signal Injection

作　　者：杨健 李峰 YANG Jian;LI Feng(School of Physics and Electronic-Electrical Engineering,Ningxia University,Yinchuan 750021,China)

机构地区：[1]宁夏大学物理与电子电气工程学院,银川750021

出　　处：《微特电机》2022年第12期47-52,共6页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(52167006);宁夏回族自治区重点研发计划项目(2020BDE03003);宁夏自然科学基金项目(2020AAC03027)。

摘　　要：为了进一步提高内置式永磁同步电动机(IPMSM)的MTPA控制效果,针对现有基于虚拟正弦信号注入的MTPA控制方法存在的不足,综合考虑IPMSM磁路饱和及交叉耦合效应的影响,提出了改进的基于虚拟直流信号注入的MTPA控制方法,避免使用滤波器,能够获得快速的MTPA轨迹跟踪性能。重点分析了q轴静态电感受IPMSM磁路饱和及交叉耦合效应影响导致的误差,在无需已知IPMSM本体参数的情况下,可以对其进行补偿,进一步提高了MTPA控制精度,通过仿真分析验证了该方法的可行性和有效性。To further improve the maximum torque per amperel(MTPA) control effect of interior permanent magnet synchronous motor(IPMSM), in view of the shortcomings associated with the existing MTPA control methods based on virtual sinusoidal signal injection, an improved MTPA control based on virtual DC signal injection considering the influence of IPMSM magnetic circuit saturation and cross-coupling effects was proposed. The method avoided the application of filters, and achieved fast MTPA trajectory tracking performance. The error caused by the q-axis static inductance due to IPMSM’s magnetic circuit saturation and cross-coupling effect was analyzed and compensated without knowing the parameters of the IPMSM, which further improved the MTPA control accuracy. The feasibility and effectiveness of the method was verified by simulation analysis.

关 键 词：内置式永磁同步电动机 最大转矩电流比 虚拟直流信号注入法 误差补偿 磁路饱和及交叉耦合效应 

分 类 号：TM341[电气工程—电机]