Coordinated Frequency Control of Doubly-fed Induction Generator Based on Interconnected Grid

To achieve double-fed induction generator (DFIG) involved in grid frequency regulation, constructed interconnected grid automatic generation control (AGC) model. Simplified the DFIG through theoretical analysis, the simplified model is able to reflect DFIG mechanical links and electromagnetic links. Proposes a coordinated control method, and under different conditions of wind power penetration of coordinated control method is validated effectiveness. The simulation results show, coordinated control method can give full play to the pitch angle adjustment effect, to frequency changes in various areas, DFIG output power, interconnected regional tie-line power conditioning effect have obvious advantages, and good usability.