In a regenerative braking scenario with an IPMSM (Interior Permanent Magnet Synchronous Motor), the motor acts as a generator, converting mechanical energy back into electrical energy.
Although the freewheeling diodes provide a path for reverse current, using PWM control on the MOSFETs can help manage the flow of energy. By controlling the duty cycle of the PWM, you can influence the amount of energy being regenerated and control the current flow more precisely.
One way to control the regen voltage is by regulating the DC bus voltage.
