A Leakage-Inductor Parameter Compensation Method for Paralleled Current-Fed Isolated DC/DC System

The problem of leakage-inductor parameter in paralleled current-fed isolated dc/dc system has not been solved. Aiming at solving that problem, a leakage-inductor parameter compensation method is proposed without an additional sensor. It provides tunable reflected voltage for parameter difference individually and compensation loops for parameter uncertainty. Thus, the circulating current and the current stress are minimized, and the voltage spike is avoided. The experimental results are given to validate the effectiveness of the method.