Title :
Stagewise control of connecting DFIG to the grid
Author :
Lang, Yongqiang ; Zhang, Xueguang ; Xu, Dianguo ; Hadianamrei, S.R. ; Ma, Hongfei
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol.
Abstract :
In order to compensate initial error of position encoder used for ac excited DFIG (doubly fed induction generator), a controller was proposed based on the steady state relationship between rotor currents and stator voltages with open stator windings, which is derived according to the mathematical model of DFIG in the synchronous frame. The compensation principle was analyzed. A stagewise control strategy for grid connection was proposed by applying the compensate controller to DFIG wind power generation system. The overall controller was designed and implemented on the experimental platform. The results confirm the validity of the control strategy proposed
Keywords :
asynchronous generators; machine control; mathematical analysis; power generation control; rotors; stators; wind power plants; DFIG; compensation principle; doubly fed induction generator; open stator windings; position encoder; rotor currents; stagewise control strategy; stator voltages; synchronous frame; wind power generation; Control systems; Error correction; Induction generators; Joining processes; Mathematical model; Rotors; Stator windings; Steady-state; Voltage control; Wind power generation; Doubly Fed Induction Generator; compensation control; vector control;
Conference_Titel :
Industrial Electronics, 2006 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0496-7
Electronic_ISBN :
1-4244-0497-5
DOI :
10.1109/ISIE.2006.295795
