Research on Fault Ride-Through Strategy of Hydrogen Source Interface Converter

In order to achieve the goal of energy conservation and carbon reduction and solve the power supply problem in remote areas, the renewable energy DC off-grid hydrogen production system has been widely recognized due to its clean, efficient and flexible advantages. As an important power conversion device in the renewable energy DC off-grid hydrogen production system, the source hydrogen interface converter is of great significance to maintain the stable operation of the system and improve the power supply reliability of the hydrogen production device and hydrogen storage device. This paper first analyzes the inter-pole short-circuit fault mechanism, which has the greatest impact on the stable operation of the source hydrogen interface converter, and proposes a fault ride-through solution. Then, a simulation platform is built using Matlab/Simulink software for verification. The simulation results prove the feasibility and effectiveness of the fault ride-through method of the source hydrogen interface converter.