Title :
A novel current regulator for DFIG wind turbines with enhanced performance under unbalanced supply voltage condition
Author :
Mohseni, Mansour ; Mesbah, Mohsen ; Islam, Syed ; Masoum, M.A.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Curtin Univ. of Technol., Perth, WA, Australia
Abstract :
This paper proposes a new vector-based hysteresis current regulator (VBHCR) in the rotor-side converter of DFIG to enhance the control performance under unbalanced supply voltage condition. The “Γ-form” is used for the equivalent circuit of the machine to reduce the modeling complexity. This is followed by presenting the principle and practical implementation of the proposed VBHCR in the DFIG application. Compared to the widely-used PI current regulators, the proposed VBHCR exhibits very fast transient response with a simple control structure. Simulation results, obtained using Matlab/Simulink for a 1.5 MW DFIG, show the validity of the proposed control scheme under normal operation as well as its superiorities under unbalanced supply voltage condition.
Keywords :
asynchronous generators; electric current control; equivalent circuits; machine control; power convertors; transient response; wind turbines; Γ-form; DFIG wind turbines; Matlab-Simulink; PI current regulators; VBHCR; equivalent circuit; fast transient response; modeling complexity reduction; power 1.5 MW; rotor-side converter; unbalanced supply voltage condition; vector-based hysteresis current regulator; “G-form” machine model; DFIG; unbalanced supply voltage; vector-based hysteresis current regulator;
Conference_Titel :
Power and Energy Society General Meeting, 2010 IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-6549-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2010.5589840
