Control of wind energy conversion systems supplying electrolyzers.

RICARDO J. MANTZ; HERNÁN DE BATTISTA; FABRICIO GARELLI

Bariloche, Río Negro

Congreso; I Congreso Nacional sobre Hidrógeno y Fuentes Sustentables de Energía (HYFUSEN?05); 2005

CNEA - IEDS

The development of suitable controllers are needed for cost-competitive electricity production by renewable-hydrogen power plants. In this paper, a novel control is proposed for a wind-electrolysis system, which matches the wind power output to the electrolyzer power requirements, thus gaining in system performance. It consists in continuously shaping the power reference of a conventional maximum power point tracking algorithm. Thus, high aerodynamic power conversion efficiency is achieved fulfilling at the same time the electrolyzer specifications. This control strategy is developed using concepts of the reference conditioning and of the sliding mode control theory. The proposed control algorithm is extremely simple, easy to implement and robust to parameter uncertainties.