A coordinated control strategy for multiple power sources under grid-integration of large-scale wind farm

Based on the fluctuation regularity of load and wind power output and secure operation objective of power grid in different time-scales, adopting the coordinated control strategy based of multi time-scale, multi sources and multi control objectives a coordinated control technique based on the accommodation of large-scale wind power is proposed, and a control system coordinating conventional power sources with wind power within regional power grid is constructed. Using the constructed control system, in the aspect of active power control the coordinated control of fossil power generation units with day-ahead and intraday active wind power output and that in next seven-days is solved; in the aspect of reactive power control the decision of reactive power compensation capacity optimization, in which the regularity of wind power distribution is considered, is solved.