Efficient and Reliable Power-Conditioning Stage for Fuel Cell-Based High-Power Applications

Mainstream power-conditioning devices such as boost converters are frequently utilized for developing a compatible interface between fuel cell, electrical storage, and high power loads. The conventional stage comprising unique converter suffers from low efficiency poor reliability due to excessive losses, particularly in high-power applications. Additionally, the presence of ripple contents can reduce lifespan cell itself. With this background, paper proposes experimentally validates physical components-assisted equivalent power-sharing strategy parallel-coupled (PCCs) that is subjected wide spectrum low-voltage–high-power conditions. operation PCCs bottlenecked by several practical limitations, inner circulating currents (ICCs) stability issues associated with sharing power. To overcome these module reverse blocking diodes suggested avoid ICCs PCCs. Further, an equalization filter properly placed improve capability. proposed theoretically assessed MATLAB/Simulink environment 6 kW proton exchange membrane (PEMFC) main source. A scaled-down laboratory setup consisting 810 W PEMFC stack, electronic load, three converters, circuit then designed critically evaluated. consistent agreement observed experimental findings simulation results under realistic operating