Fuzzy Logic Control of Four-Phase Interleaved Boost Converter for PEM Fuel Cell

This paper presents a transformation method capable of analytically converting the given differential equations of dynamic models for a four-phase interleaved boost converter (IBC) coupled with a PEMFC into a Takagi-Sugeno fuzzy inference model (TS fuzzy model). This transformation enables the utilization of various parallel distributed compensation (PDC) controller design techniques. By combining the transformation method with PDC techniques, a framework for controller design is established. The proposed controller aims to improve the robustness and stabilization of the output voltage equilibrium point while minimizing the PEMFC current overshoot within a specified limit of the PEMFC current ripple, thereby providing protection. The stability of the proposed controller is proven using the Lyapunov theorem. An LMI condition is developed to synthesize the controller gains. The effectiveness of the PDC controller is further evaluated using Matlab Simulink.