Wind farm dynamic analysis in terms of Turkish grid codes

Abstract

Wind power plant installations continue to increase worldwide because it is a kind of renewable and harmful emissions-free energy source. The increased capacity of wind power needs the new strict requirements related to the grid connections of wind generators. The requirements defined in the grid codes can be states as reactive power control, fault ride-through (FRT) capability of the wind turbines, active power and frequency control. The grid codes affect inevitably the developments of wind turbine technology. Today wind power plants are expected to support the grid and provide ancillary services much like conventional power plants. This paper presents a simulation based monitoring approach for the dynamic behavior of a wind farm with doubly fed induction generators (DFIG). Simulations are performed to check how Turkish grid codes complies with the dynamic effects of the wind turbines on the power grid as a reflection of disturbances. The response of wind turbines at the point of common coupling (PCC) are analyzed. Simulation studies are conducted using the power system simulation tool DIgSILENT Power Factory. From this analyses, it can be concluded that Turkish grid codes need to be detailed and expanded to maximize the capacity of wind power plants keeping stability constant in Turkish power system.