Proton exchange membrane water electrolysis: Modeling for hydrogen flow rate control

Nowadays, the proton exchange membrane electrolyzer (PEMEL) is a promising and attractive technology when coupling with renewable energy sources (RES). Indeed, PEMEL can respond quickly to dynamic operations of RES. Given that must be supplied low DC voltage, DC-DC converters are mandatory. In this work, stacked interleaved buck converter used. paper, tuning proportional, integral derivative (PID) controllers, which often used enhance performances (efficient reliable operation), based on behavior PEMEL. Before designing PID controller, model proposed input-output measured data, combined state-space description. Then, obtained global tune two controller configurations: first one control current second voltage Experimental tests carried out validate effectiveness designed laws.