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Modeling and Simulation of Regenerative Braking Rectifier for Electric Vehicle

Aiming at the problem of low efficiency of recycling energy in the process of regenerative braking for electric vehicle, SVPWM algorithm is applied to the process of energy transformation of regenerative braking in this paper. It is derived and verified that, through using SVPWM, DC voltage fluctuation can be reduced in the process of rectification. The simulation model is built basing on the Volkswagen LAVIDA EV. The simulation experiment was carried out combining with the actual working status of electric vehicle regenerative braking. The simulation experimental results prove that DC voltage fluctuations can be decreased and the efficiency of regenerative braking rectifier can be increased through SVPWM. The following feature of rectifier in the braking condition is good.