Research on DC Load and branch fault isolation device of PEDF System

Aiming at the problems of low conversion efficiency, adaptability and low safety of DC branch of traditional AC load in PEDF system, based on the classification of common load in PEDF system, the circuit principle of water boiler is analyzed, and the transformation scheme and arc-killing module design scheme are proposed. At the same time, the branch fault isolation device is designed to improve the safety of DC branch. The effectiveness of the design method has been proved through experimental tests.