摘要：在脉宽调制(PWM)电路中，输出电压基波滞后于参考的正弦信号电压波一定的相位。在低速系统中，由于滞后相位不大，这个问题往往被忽略；然而在高速系统中，若PWM 输出电压的基波相位滞后参考电压太多，将严重影响系统动态过程和稳态性能，系统将无法实现准确控制。在分析传统永磁同步电机矢量控制方式的基础上，提出了一种补偿永磁同步电机PWM 输出电压基波相位滞后的控制策略，该方法不仅能提高调速系统的动态响应速度，减小电机输出转矩和功率的波动，同时也有利于维持整个储能系统的稳定运行。通过对转速/电流闭环控制的高速永磁同步电机进行仿真分析，表明所提的控制策略提高了系统的适应能力和稳定性能，同时实现了快速响应。

关键词：永磁同步电机；电压相位补偿；脉宽调制
Abstract: In pulse width modulation (PWM) circuits, the output voltage wave has a phase delay relative to the sine signal wave. This problem was often ignored in traditional permanent magnet synchronous motor (PMSM) vector control, but when the phase value was too big. The system will not realize accurate control, and even affect the normal operation of motor seriously. On the analysis of the control of traditional PMSM vector and flywheel energy storage system, a control strategy was introduced to compensate the phase of PMSMs PWM output voltage. This method can not only improve the response speed of the speed regulation system, reduce the motor torque and power fluctuations, but also enhance the stability of storage system. By the simulation on a PMSM system with speed/current closedloop control, the results show that the proposed control strategy can improve the system adaptive capacity and stable performance, meanwhile realize the fast response.

Key words: permanent magnet synchronous motor；phase compensate of voltage；pulse width modulation