Control of a two-phase interleaved boost converter with input LC filter for fuel cell vehicle applications

This paper describes a method to control a two-phase interleaved boost converter with an input LC filter. This converter is designed intently to act as a bridge to bring the power from a fuel cell (FC) with low ripple current and feed it to load to extend the lifespan of FC. Based on the flatness properties of the system, the FC current and the balancing of current in each phase of the interleaved boost converters are controlled. Generally, the current of both phases is controlled equally. The output voltage is controlled using the output capacitor's energy control. A small test bench is implemented to give experimental results to validate the proposed method.