The classic way for the synthesis of a sinusoidal voltage is the PWM with PID controller in relation to a reference sinusoid,which have poor robustness.

• 传统的开关型正弦电压源采用的是PWM技术与PID控制相结合的方法，它是对参考正弦信号的跟踪控制，鲁棒性较差。