| Popis: |
This paper proposes a 5kW zero voltage switch space vector modulation (ZVS-SVM) controlled three-phase boost converter. A power circuit of this converter is modified from the conventional three phase boost rectify by combine the active clamp branch. A branch composed of an active switch, a resonant inductor and a clamping capacitor. By used the control techniques to active clamp, the ZVS are occurring at the power switching components. The simulation results can confirm the superiority of this topology to increase the system efficiency up 98 percent. The system has fast response, low total harmonic distortion and steady state error with unity power factor. Moreover, both the main and the auxiliary switches have the same and fixed switching frequency. |
