Research of Control Method of Energy Feedback System Based on Space-vector

Aiming at the problem that general inverters couldn’t eliminate pumping voltage well produced when motors were decelerating and braking,the paper proposed a SVPWM control method of energy feedback system of inverter.The control method is used in active inverter circuit and adopts SVPWM control strategy based on fixed switching frequency,which can eliminate pumping voltage effectively and realize dynamic tracking of phase and feedback with unity power factor of current.Moreover,the method can make general inverters run in four quadrants with characteristics of high voltage utilization ratio and quick dynamic response.The simulation results verified correctness and validity of the control method.