Peak power tracking in parallel connected convertors

A control scheme for parallel connected convertor systems, which will transfer the maximum available power from a nonideal voltage source, is presented. Monitoring the rates of change in both the average input current and average input power from the source, the proposed control method can dynamically regulate the DC-DC convertor system to track the peak power point of the source. The amplitude and frequency of the oscillations due to a limit cycle around the system peak power point is analysed. To improve the system efficiency and reliability, the central limit distribution control is incorporated into the proposed scheme to uniformly distribute the supplied power among the parallel connected convertors