A coodinated voltage control scheme for power system with large-scale wind power integration

To solve the technical problems about secure and stable operation of wind power integration, voltage control scheme for power system with large-scale wind farm integration is studied in this paper. A layered control structure for DFIG wind farm grid-connected system is designed. The control scheme and model of the system decision-making layer is presented to decide the task of wind farms on-line. Moreover, considering restriction and operation characteristic of DFIG, the control capability of wind farm may be evaluated, and wind farm control algorithm and strategy are proposed. Finally, the implementation of coordinated voltage control strategy for wind power grid-connected system is presented.