这是一个三相电流滞环PWM控制的逆变电路-This is a three-phase hysteresis current-controlled PWM inverter circuit

As traditional control schemes, open-loop Hysteresis and closed-loop pulse-width- modulation (PWM) have been used for the switched reluctance motor (SRM) current controller. The Hysteresis controller induces large unpleasant audible noises because