Research on Operation Mode and Parameter of a Multiple Ports Power Router for Industrial Park

Abstract

This paper proposes a fuel cell grid-connected system based on multi-port energy router for industrial park. The economic mode, max power mode and high voltage ride-through mode are controlled by cooperation of both the grid tied three-phase converter and the battery port, thus the multi-port energy router can flexibly access the energy storage according to different operating conditions, which stabilizes the fuel cell output, making the system more efficient. In the case of power grid high-voltage fault, the energy storage device is used to raise the voltage of the DC bus, so that the system has the capability of high-voltage ride-through, and can run continuously without disconnecting the grid in the high-voltage state until the fault recovery. The control diagram of implementation and corresponding parameter design are carried out. The feasibility of the scheme is verified by simulation and experimental results.