Impacts of wind generators on the dynamic performance of power systems

The complexity of power systems has been increased in recent years due to increased utilization of the existing transmission lines using FACTS (Flexible AC Transmission System) devices and for changing the generation mechanism with more intermittent sources and lower inertial units. This changing nature of power systems has considerable effect on its dynamic behavior resulting from power swings, dynamic interaction between different power system devices, and less synchronized coupling. This chapter will analyze the changing nature of power systems and its dynamic behavior to identify critical issues that limit the large-scale integration of wind generators and FACTS devices. The studies in this chapter are conducted on a 16-Machine, five area New England and New York power system. In this chapter, the study of dynamic behavior includes modal analysis, Power-Voltage (PV) analysis, eigenvalue tracking, and dynamic simulations to investigate the dynamic behavior of a complex power system under both small and large disturbances.