Fault Behaviour of Wind Farms with Fixed-Speed and Doubly-Fed Induction Generators
Författare
Summary, in English
Abstract in Undetermined
This paper focuses on the fault current contribution of wind farms with Fixed-Speed (FSIG) and Doubly-Fed Induction Generators (DFIG). The fault current delivered by a single FSIG during both symmetrical and unsymmetrical faults is found analytically and validated through simulations. Simulations of a detailed model of a wind farm with several FSIG or DFIG are then performed to investigate the total fault current contribution at the Point of Common Coupling. The scope is to check the validity of a single-machine approach to predict the fault contribution of the wind farm. It has been found that both in the case of FSIG and DFIG wind farms, the single-machine approach is reasonable. For DFIG wind farms, the initial operating point of each DFIG has an important impact on its fault current and the single-machine should be given an initial slip close to the average slip of all DFIG in the wind farm.
This paper focuses on the fault current contribution of wind farms with Fixed-Speed (FSIG) and Doubly-Fed Induction Generators (DFIG). The fault current delivered by a single FSIG during both symmetrical and unsymmetrical faults is found analytically and validated through simulations. Simulations of a detailed model of a wind farm with several FSIG or DFIG are then performed to investigate the total fault current contribution at the Point of Common Coupling. The scope is to check the validity of a single-machine approach to predict the fault contribution of the wind farm. It has been found that both in the case of FSIG and DFIG wind farms, the single-machine approach is reasonable. For DFIG wind farms, the initial operating point of each DFIG has an important impact on its fault current and the single-machine should be given an initial slip close to the average slip of all DFIG in the wind farm.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
1-7
Publikation/Tidskrift/Serie
PowerTech, 2011 IEEE Trondheim
Länkar
Dokumenttyp
Konferensbidrag
Ämne
- Other Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
IEEE PES Trondheim PowerTech 2011
Conference date
2011-06-19 - 2011-06-23
Conference place
Trondheim, Norway
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 978-1-4244-8419-5