Optimal tracking secondary voltage control for the DFIG wind turbines

This paper presents the development of the optimal tracking secondary voltage control based on determining of the regulation margin at all grid buses and using the intelligent selection based on the voltage violation condition of the proposed system. This OTSVC is more efficient to provide voltage regulation and achieve other benefits for voltage stability margin of the power system. The OTSVC can also employing with FACTS devices such as STATCOM for better voltage regulation and reactive power compensation. This paper considers an OTSVC for a doubly fed induction generator based wind park. The system is developed and simulated for six wind generators connected to a typical transmission system. The performance of the OTSVC is compared with the primary voltage control and secondary voltage control under the steady state and load excursion in a weak power system