Determination of the Optimal Number of Phases of a Multiphase Bidirectional Chopper Considering AC Loss in Inductor

This study focuses on the loss of inductors in a multiphase bidirectional chopper, which is DC-DC conversion system. The current at chopper consists DC equivalent to load and an AC called ripple current. discussion regarding effect increased number phases should include due current, caused by semiconductor switching. Therefore, this clarifies from experiment with increase temperature. From extraction total loss, it demonstrated that no-load chopper. When increases, decreases whereas increases. relationship indicates optimal exist according deduces analytical solution for applies methodology determining actual onboard energy storage system traction as example. differs depending application.