The Impact of Frequency Support by Wind Turbines on the Small-Signal Stability of Power Systems

Rising wind energy integration, accompanied by a decreasing level of system inertia, requires additional sources ancillary services. Wind turbines based on doubly fed induction generators (DFIGs) can provide inertial and primary frequency support when equipped with specific controls. This paper investigates the effect provision DFIGs small-signal stability power systems. To this end, modified version Kundur two-area test is employed to analyze different scenarios. generation either added existing or displaces part synchronous generation. Simulations show that tends improve damping electromechanical oscillations deteriorate it for converter control-based ones. On other hand, response depends control parameters.