Experimental and Simulation Comparison for Timer Action Crowbar of Doubly-Fed Induction Generator

Author

Chen, WenJun ; Atkinson, David ; Chaal, Hamza ; Jovanovic, Milutin

Author_Institution

Sch. of Electr., Electron. & Comput. Eng., Newcastle Univ., Newcastle upon Tyne, UK

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

5

Abstract

The sensitivity of the DFIG to the grid disturbances such as a voltage dip restricts network stability and risks damage to generator converters during the fault period due to the over-current and/or over-voltage. It is now a requirement that wind turbine manufacturers demonstrate what is commonly called `Fault Ride Though´ (FRT) capability in their turbine systems. The rotor crowbar, as a cost-effective and reliable method of protecting the power converters of the DFIG, was employed as a part of the FRT scheme. A computer model created in Matlab/Simulink was validated with the results of a 7.5kW experimental system.

Keywords

asynchronous generators; fault diagnosis; overcurrent protection; overvoltage protection; power convertors; power grids; wind turbines; DFIG; doubly-fed induction generator; fault ride though capability; generator converter damage; grid disturbance; network stability; overcurrent fault; overvoltage fault; power 7.5 kW; power converter protection; timer action crowbar; wind turbine manufacturer; Circuit faults; Converters; Insulated gate bipolar transistors; Reactive power; Resistors; Rotors; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748822

Filename

5748822