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To solve the issues of the open-loop control accuracy in a proton exchange membrane (PEM) fuel cell power conditioning system (PCS) with active clamp push-pull DC/DC converter for input current ripple reduction, a novel closed-loop digital-controlled method is proposed. The proposed PEM fuel cell PCS consists of a high-efficiency high-step-up current-fed resonant push-pull DC/DC converter and a half-bridge...
Fuel cells are electrochemical generators where produce electrical energy from chemical reactants. It is why these are good candidates to provide clean energy generation. This paper presents a multi-input multi-output (MIMO) dynamic model of polymer electrolyte membrane (PEM) fuel cells. Thereafter a nonlinear controller is designed using the proposed model to prolong the stack life of the PEM fuel...
This paper presents the expert fault monitoring and intelligent comprehensive control of a proton exchange membrane (PEM) fuel cell (PEMFC) as backup power source for an uninterruptible power supply (UPS) system. The failure status can be shown on the screen of a micro-computer (or a PC) linked with the UPS through an RS-232 and on the control panel of the UPS through LED indicator lights. The proposed...
Distributed generation (DG) and microgrid technologies can be used to moderate the stress in electricity demand increase that the main stream utility grid is facing. In this paper, a control and monitoring system for an alternative energy based microgrid is designed using LabVIEW programming language. A prototype microgrid that consists of a PEM fuel cell power module and two synchronous generators...
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