摘要：飞轮储能系统一般采用调节电枢电压来对转速进行调节，调节电压多通过PWM信号来控制。但在这个高速系统中运用这种调节方式，会造成PWM输出电压滞后于调制电压信号，影响电枢电压的波形，从而会造成一系列的问题。本文提出了一种新型的脉宽调制方法，用该方法控制开关管的通断所得到的输出电压与调制波相位延时较小，减缓了实际输出波形与调制波形不符问题。最后通过运用仿真实验证明了这种方法的可靠性和实用性。

关键词：飞轮储能；PWM控制；脉宽调制；高速系统
Abstract: The rotational speed of flywheel energy storage system is generally regulated by armature voltage, and the voltage is adjusted by the control of PWM signal. This method of regulation will cause that the PWM output voltage lags behind the voltage of signal modulation, affect the armature voltage waveform, which can cause a  series of problems. This paper put forward a new kind of PWM method, which can control the switch to make thedelay of phase of output voltage and modulation wave smaller, and mitigated the problem that the actual output    waveform and the modulation waveform are not consistent. Finally, simulations verified the reliability and practicability of this method.

Key words: flywheel energy storage;   PWM control; pulse width modulation; high-speed system