Controlling SCIG-based Wind Turbine to Satisfy the Power System Operator’s Requirement

Abstract

In this paper, the integration of a battery system into a SCIG-wind farm is investigated so that this wind farm satisfies the grid code's two requirements including active power control and ride through fault ability. A control scheme coordinating between the battery system and the wind turbine's pitch control system is proposed. The coordinating principle, the storage system's control diagram and the pitch controller are described in detail. Simulation results indicated that the wind farm's active power output satisfies the power system operator's demand no matter of the full charge state of the battery and it can ride through after a fault on the grid.