Title :
Study on Stagewise Control of Connecting DFIG to the Grid
Author :
Zhang, Xueguang ; Xu, Dianguo ; Lang, Yongqiang ; Ma, Hongfei
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol.
Abstract :
A novel control scheme in grid-voltage-orient frame for connecting doubly fed induction generator (DFIG) to the grid is proposed. The model of DFIG in grid-voltage-orient frame is analyzed. A PI controller to compensate the rotor position initial error is adopted in this design stagewise control strategy based on the DFIG model is proposed. The method to design the controllers is described. The grid synchronization procedure is analyzed in detail. The proposed techniques have been implemented on a 4.2 kW experimental DFIG system. Experimental results are presented to illustrate the effectiveness of the proposed techniques
Keywords :
PI control; asynchronous generators; error compensation; machine control; synchronisation; 4.2 kW; DFIG connection; PI controller; doubly fed induction generator; grid synchronization; grid-voltage-orient frame; rotor position initial error compensation; stagewise control; Circuits; Control systems; Error correction; Joining processes; Power system modeling; Rotors; Stators; Voltage; Wind power generation; Wind turbines; DFIG; grid connection; rotor position initial error compensation; stagewise control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778075
