Fault Ride-Through Improvement of DFIG-WT by Integrating a Two-Degrees-of-Freedom Internal Model Control

Author

Campos-Gaona, David ; Moreno-Goytia, Edgar L. ; Anaya-Lara, Olimpo

Author_Institution

Posgrado en Ing. Electr., Inst. Tecnol. de Morelia, Morelia, Mexico

Volume

60

Issue

3

fYear

2013

fDate

3/1/2013 12:00:00 AM

Firstpage

1133

Lastpage

1145

Abstract

A novel two-degree-of-freedom internal model control (IMC) controller that improves the fault ride-through (FRT) capabilities and crowbar dynamics of doubly fed induction generator (DFIG) wind turbines is presented. As opposed to other control strategies available in the open literature, the proposed IMC controller takes into account the power limit characteristic of the DFIG back-to-back converters and their dc-link voltage response in the event of a fault and consequent crowbar operation. Results from a digital model implemented in Matlab/Simulink and verified by a laboratory scale-down prototype demonstrate the improved DFIG FRT performance with the proposed controller.

Keywords

asynchronous generators; fault diagnosis; machine control; mathematics computing; power convertors; power generation control; wind turbines; DFIG back-to-back converters; DFIG wind turbine; DFIG-WT; FRT capability; IMC controller; Matlab-Simulink; crowbar dynamics; digital model; doubly fed induction generator wind turbine; fault ride-through improvement; two-degrees-of-freedom internal model control; Mathematical model; Power system stability; Rotors; Stators; Steady-state; Voltage control; Wind turbines; Doubly fed induction generator (DFIG); fault ride-through (FRT); grid codes; internal model control (IMC); robust control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2012.2216234

Filename

6290361