Title :
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
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;
Conference_Titel :
Power Systems Conference (PSC), 2015 Clemson University
Conference_Location :
Clemson, SC
DOI :
10.1109/PSC.2015.7101696
