High-order terminal sliding-mode control strategy for wind energy Integration into power network

This paper proposes a high-order terminal sliding-mode control strategy for wind energy integration into power network. A typical wind energy conversion system and its mathematical model are analyzed. For a wind turbine to have the maximum active power extraction from the wind at any given instant, the electrical load on the generator is regulated using the maximum power point tracking method. For wind energy integration into power network, the structure of back to back PWM is utilized. Both the voltage and currents in the wind energy conversion system are measured and the control signals for both two PWM inverters are generated based on the control algorithms.