Fuzzy logic based inertia! dispatch strategy from wind power plant

This paper presents a fuzzy logic based new and effective inertial wind power dispatch strategy in a wind integrated power system. GE 3.6 MW wind turbine (WT) which has provision of additional inertial support is considered for this study. In the proposed strategy, maximum possible releasable kinetic energy (KE) available from individual WTs is estimated (considering multiple wake effect created by upstream WTs to downstream WTs in a WF) and equivalent power demand command in addition to scheduled pre-disturbance WT power output, is provided to the WT controller from a power plant level temporary frequency correction unit (TFCU) when the system frequency deviates from the nominal value. The proposed short term frequency support scheme is compared with KE based gain scheme at different penetration level of wind generation while considering different wind directions. The investigation results on a two area wind integrated power system suggest that the proposed sheme significantly improves frequency nadir and the tie power oscillation in all the study cases.