Non-Linear Control of a Six-Phase Floating Interleaved Boost Converter with Coupled Inductors for Fuel Cell Hybrid Power Supply in Heavy-Duty Applications

This work is part of a project focused on optimizing the use of fuel cells in heavy-duty transportation systems. It introduces a novel six-phase floating interleaved boost converter (6-FIBC) with coupled inductors, along with its tailored nonlinear control strategy, designed for fuel cell hybrid systems in heavy-duty applications. The proposed 6-FIBC topology leverages interleaving techniques and coupled inductors to minimize current ripple, enhance voltage balancing, and boost efficiency. The accompanying non-linear control ensures accurate voltage regulation, stable current sharing, and adaptability to dynamic load variations, optimizing the overall performance of the fuel cell system. Simulation results validate the effectiveness of the proposed structure and control strategy in ensuring system stability, enhancing energy conversion efficiency, and improving overall reliability. Experimental validation is planned to confirm the practical feasibility of the proposed approach.