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.

Volume

1

fYear

2006

fDate

14-16 Aug. 2006

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International

Conference_Location

Shanghai

Print_ISBN

1-4244-0448-7

Type

conf

DOI

10.1109/IPEMC.2006.4778075

Filename

4778075