摘要
永磁同步电机的定子电阻和磁链会随温度变化而变化,定子电感会随电机饱和程度的变化而变化,电机相电流的采集和转子角位置的采集由于硬件原因均存在延迟,考虑上述工况,本文提出了一种高速高精度矢量控制补偿算法。其中重点推导了基于电机模型的相电流采集延迟补偿策略,给出了补偿电压的计算方法;还推导了转子角位置采集延迟的补偿策略,根据需求设计了由转子角位置计算转速的数字滤波器,为电流环预测控制的精确控制和抗扰动能力奠定基础。在文章的最后,通过仿真和试验,分别验证了本文所提出了电机矢量控制补偿策略的正确性和有效性。
The stator resistance and flux linkage of a permanent magnet synchronous motor change with temperature,and the stator inductance change with the saturation of the motor.The acquisition of motor phase current and the acquisition of rotor angular position has time delay due to hardware reasons.Considering the above conditions,this paper proposed a high-speed and high-precision vector control compensation algorithm.Among them,the phase current acquisition delay compensation strategy based on the motor model was mainly derived,and the calculation method of the compensation voltage was given;the compensation strategy of the rotor angular position acquisition delay was also derived,and the digital filter that calculates the speed from the rotor angular position was designed according to the demand.Laid the foundation for the precise control and anti-disturbance ability of current loop predictive control.Simulations and experiments respectively verified the correctness and effectiveness of the motor vector control compensation strategy proposed.
作者
夏立群
朱明君
胡逸雪
杨玉昆
XIA Liqun;ZHU Mingjun;HU Yixue;YANG Yukun(AVIC Xi’an Flight Automatic Control Research Institute, Xi’an 710076, China)
出处
《微电机》
2022年第3期56-64,共9页
Micromotors
关键词
转子角位置采集延迟补偿
电流采集延迟补偿
电阻电感补偿
永磁同步电机
rotor angular position acquisition delay compensation
current acquisition delay compensation
resistance and inductance compensation
permanent magnet synchronous motor