Power regulation of fixed pitch wind energy systems by load characteristics control

The need for fulfilment of electrical energy demand in the development countries and of isolated users has contributed to the worldwide diffusion of well tested mechanically controlled stand-alone wind energy systems [1]. However, considering the ever increasing attention towards the energetic available resources optimal exploitation, the research for new more reliable and cost effective technical solutions is as much as never relevant. This paper proposes an innovative wind energy fixed pitch systems control method, by an AC/DC converter, alternative to the more expensive mechanical ones. The adopted control strategy assumes a key role in the wind energy system electrical and mechanical sizing, affecting the load distribution as well as the energetic behaviour [7, 9]. An improvement in the system overall performance is the result of the proposed control strategy, whose efficiency is checked performing a simulation of its operation.