Lateral tower vibrations of offshore wind turbines are normally lightly damped, and large amplitude vibrations induced by wind and wave loads in this direction may significantly shorten the fatigue life of the tower. This paper proposes the modeling and control of lateral tower vibrations in...

This paper deals with a renewable energy conversion system based on cross-flow water turbines operating in a river stream. Two twin vertical towers, each of which is composed of four such turbines, need to meet an imposed restriction between their angular positions (synchronization) in order to...

The paper discusses simulated control cases of the wound rotor self-excited induction generator WRSEIG. The generator external controller is designed to regulate the output voltage and frequency for constant or variable speed operation of the prime mover and has the inherent capability of...