بهبود عملکرد شارژر باتری برای وسایل نقلیه الکتریکی با استفاده از کنترل کننده های رزونانس

This paper proposes a current proportional-resonant control strategy to reduce second-order harmonic of electric vehicle battery charger. Using the PR controller, the charger reference tracking performance can be enhanced. The steady-state errors in single-phase charging system can be reduced effectively. The PR controller stability influence factors including proportion coefficient, resonant coefficient and cutoff frequency are discussed in the paper. Finally, simulation results achieved on a 3.3 kW charging model prove the proposed strategy effectively minimizes the low-order frequency ripple in grid-interfaced converter.