A sensorless flux oriented control scheme for a DFIG connected to a DC link

Author

Jia Li ; Corzine, Keith

Author_Institution

Holcombe Dept. of Electr. & Comput. Eng., Clemson Univ., Clemson, SC, USA

fYear

2015

fDate

10-13 March 2015

Firstpage

1

Lastpage

5

Abstract

In this paper, a novel sensorless flux-oriented control scheme is presented to connect a DFIG to a dc link with arbitrary stator frequency. The rotor side of the DFIG is connected to the dc link through a converter while the stator is connecting to a three phase diode bridge with the dc side connected to a dc link. The control method used in this paper is regulating the stator frequency and the d-q axis voltage of the diode bridge to operate the DFIG at a desired stator frequency and generate the required power. The low-order harmonics in the stator current of DFIG are detected and regulated through control of the rotor currents based on multiple reference frame theory. Matlab/Simulink is employed to investigate the performance of proposed methods.

Keywords

asynchronous generators; sensorless machine control; DC link; DFIG; arbitrary stator frequency; multiple reference frame theory; sensorless flux oriented control scheme; three phase diode bridge; Bridge circuits; Frequency control; Harmonic analysis; Power harmonic filters; Rotors; Stator windings; DC link; DFIG; Harmonic compensation; Multiple reference frames;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Systems Conference (PSC), 2015 Clemson University

Conference_Location

Clemson, SC

Type

conf

DOI

10.1109/PSC.2015.7101696

Filename

7101696