Terminal sliding mode control of induction generator for wind energy conversion systems

This paper proposes high-order terminal sliding mode control strategies for wind energy conversion systems. Nonsingular terminal sliding mode manifolds and related second-order sliding mode control strategies are designed respectively for the speed controller and the current controllers of the induction generator in a wind energy conversion system. The second-order sliding mode technique is utilized to soften the non-smooth control signal, which can guarantee the actual control signal is continuous and smooth. The simulations are presented to validate the proposed method.