Load sharing control of fuel cell based generation units in stand-alone distribution networks

摘要

This paper proposes and investigates a control strategy for the distribution networks when isolated front a main utility in order to improve continuity of electricity to important loads. Specifically, the paper presents the operation and control of proton exchange membrane fuel cell based generation unit feeding to the islanded industrial network. The central controller defines all distributed generation units reference power and voltage with consideration of system and unit normal rating in order to maintain reliable and high quality power to the important loads. Simulation results verify that the proposed control scheme is effective for stable operation of the industrial islanded network with dynamic and variable loads.