Abstract
This letter shows the existence of multiple equilibria that arise from the use of the state model of the unified power flow controller (UPFC). These multiple equilibria can arise from a common power injection model for the same terminal conditions of shunt bus voltage and series active and reactive power injections. The multiple equilibria result in two or more sets of eigenvalues, some of which may indicate an unstable operating condition. Therefore, the use of the UPFC power injection model must be used with caution to ensure stable operation of the UPFC.
Recommended Citation
M. Zarghami and M. Crow, "The Existence of Multiple Equilibria in the UPFC Power Injection Model," IEEE Transactions on Power Systems, vol. 22, no. 4, pp. 2280 - 2282, Institute of Electrical and Electronics Engineers (IEEE), Nov 2007.
The definitive version is available at https://doi.org/10.1109/TPWRS.2007.907588
Department(s)
Electrical and Computer Engineering
Sponsor(s)
National Science Foundation (U.S.)
Keywords and Phrases
Load Flow Control; Oscillation Damping; Power System Stability; Unified Power Flow Controller (UPFC)
International Standard Serial Number (ISSN)
0885-8950
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2007 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
01 Nov 2007
Comments
Supported by the National Science Foundation under awards CNS-0420869 and ECCS-0701643.