Research on Grid-Connected Power Control for Double-Fed Generator

This paper first introduces the double-fed wind power generation systempsilas basic theory, and builds the mathematical model of the double-fed generator in the rotary coordinate system. In order to deal with the strong coupling problems in motor control field, the motor vector control technology is researched and the idea of dual-fed generator stator-flux-oriented vector control strategy is presented by application of vector control. Based on that theory and the characteristics of double-fed generatorpsilas grid-connected power control, a dual-channel and double-loop control method with current inner-loop and power outer-loop is presented. In Matlab/Simulink environment, the simulation results show that the control strategy can achieve the decoupling of the active power and reactive power in double-fed power generation system.