Voltage collapse has been commonly associated with insufficient reactive power support. Steady state studies have related reactive power generation limitations to the sudden onset of voltage instability. This paper extends this approach to the dynamic case. The relationship between the dynamic models and steady state behavior is established. The dynamic model is then used to investigate the sudden change in system stability when the maximum excitation limit is reached. Several illustrative examples are analyzed. Corrective actions are proposed which will move the physical system away from the region of instability.
J. Ayyagari and M. Crow, "The Effect of Excitation Limits on Voltage Stability," IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 42, no. 12, pp. 1022-1026, Institute of Electrical and Electronics Engineers (IEEE), Dec 1995.
The definitive version is available at http://dx.doi.org/10.1109/81.481199
Electrical and Computer Engineering
Keywords and Phrases
Dynamic Model; Excitation Limits; Power System Analysis Computing; Power System Stability; Reactive Power; Voltage Collapse; Voltage Stability
International Standard Serial Number (ISSN)
Article - Journal
© 1995 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.