Dynamic compensating strategy and en-stabilizing compensator to enhance the stability of wind farms integrated into weak grid

This paper presents a novel dynamic compensating concept and corresponding compensating facility to enhance the operation stability of wind farms integrated into weak grid. The stability problems of wind turbine in the mechanical time scale firstly is briefly analyzed by the dynamic power balance principle. Then the dynamic compensating concept and facility, the en-stabilizing compensator (ESC) is presented. Moreover, the ESC is controlled based on the instantaneous power synchronization method to instantaneously and spontaneously provide dynamic power compensation. Finally, simulations are carried out to verify the correctness and validity of the compensating concept and the ESC.