Abstract
With the widespread use of electric vehicles (EVs), the development of high-quality and efficient battery chargers has become the last mile problem. This paper describes a high-performance control scheme for the Swiss rectifier (SR) in EV battery chargers, named passivity-based one-cycle control (POCC). By combining passivity-based control (PBC) and one-cycle control (OCC), the range of sampling error for the SR’s output current is strictly limited, and improve the reliability of battery charging. Thus, the qualities of input-output currents can be improved, simultaneously. Besides, compared with the classic dual closed-loop PI control (DCLPIC), the proposed passivity-based one-cycle control method can further reduce the total harmonic distortion (THD) of the input current, thus decreases the rectifier’s negative feedback to the grid. Meanwhile, the amplitude of charging current ripple can be reduced to improve the reliability of battery charging. Lastly, simulation examples are applied to validate the proposed POCC method.
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