摘要：Two control strategies of DFIG under grid distortion are firstly summarized, namely, the controlstrategy of PI-R current controller based on dq reference frame and the control strategy of PI currentcontroller based on the multiple rotating dq reference frame, and their advantages and disadvantages areanalysed. On the basis of dynamic modelling of DFIG under grid distortion, in view of the defect that DFIGcoupling is not considered in the control strategy of PI-R current controller based on dq reference frame, animproved control strategy considering motor coupling is proposed. In the end, the modelling and simulationof the unimproved and improved control strategies of PI-R current controller based on dq reference frameare carried out, and the simulation results venified the ffctiveness of the improved control strategy.
其他摘要：Two control strategies of DFIG under grid distortion are firstly summarized, namely, the control strategy of PI-R current controller based on dq reference frame and the control strategy of PI current controller based on the multiple rotating dq reference frame, and their advantages and disadvantages are analysed. On the basis of dynamic modelling of DFIG under grid distortion, in view of the defect that DFIG coupling is not considered in the control strategy of PI-R current controller based on dq reference frame, an improved control strategy considering motor coupling is proposed. In the end, the modelling and simulation of the unimproved and improved control strategies of PI-R current controller based on dq reference frame are carried out, and the simulation results verified the effectiveness of the improved control strategy.
