On the rotor angle stability of power systems with Doubly Fed Induction Generators
2007 (English)In: 2007 IEEE LAUSANNE POWERTECH, VOLS 1-5, NEW YORK: IEEE , 2007, 213-218 p.Conference paper (Refereed)
This article is concerned with the impact of large scale wind farms utilising doubly fed induction generators on the stability of a traditional thermal power system. Inspection of the eigenstructure of the power system provides a foundation for assessment of the impact, which is then quantifted by means of detailed numerical simulations. Simplified state-space models are used to describe the dynamics of the generators in a very simple system., whose network is described by algebraic relations. A third order model is derived for a doubly fed induction generator. Mathematical models are used to identify the behavioural patterns of the system when it is subject to disturbances. Eigenvalue analysis reveals certain interesting properties of the system when it is subject to small disturbances. Numerical simulations show that the addition to a power system of doubly fed induction generators, such as those found in wind farms, improves the response of the system to small disturbances, but can have an adverse impact after larger disturbances.
Place, publisher, year, edition, pages
NEW YORK: IEEE , 2007. 213-218 p.
DFIG, doubly fed induction generator, stability, power system, one-axis model, third order, eigenvalues
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-36828DOI: 10.1109/PCT.2007.4538319ISI: 000258730100038ScopusID: 2-s2.0-50849101958OAI: oai:DiVA.org:kth-36828DiVA: diva2:431233
IEEE Lausanne Powertech Lausanne, SWITZERLAND, JUL 01-05, 2007
QC 201107182011-07-182011-07-152012-04-19Bibliographically approved