An OPF Methodology to Ensure Small-Signal Stability

This paper presents a security redispatching procedure that allows achieving an appropriate security level in terms of small-signal rotor angle stability. The proposed methodology is based on an OPF problem that explicitly considers security limits through stressed loading conditions. The solution o...

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Bibliographic Details
Published in:IEEE transactions on power systems 2011-08, Vol.26 (3), p.1050-1061
Main Authors: Zarate-Minano, R., Milano, F., Conejo, A. J.
Format: Article
Language:English
Subjects:
Conferences
Damping
Eigenvalues and eigenfunctions
Exposure
Generators
Hopf bifurcation
ISO
loading margin
Methodology
optimal power flow
Optimization
Power system stability
Rotors
Security
small-signal rotor angle stability
Stability
Stability analysis
voltage stability
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Summary:This paper presents a security redispatching procedure that allows achieving an appropriate security level in terms of small-signal rotor angle stability. The proposed methodology is based on an OPF problem that explicitly considers security limits through stressed loading conditions. The solution of the proposed redispatching procedure yields the optimal preventive control actions to be implemented to ensure a given security level. The New England 39-bus, ten-machine and the IEEE 145-bus, 50-machine systems are used for illustrating, testing, and discussing the proposed technique.
ISSN:0885-8950
1558-0679
DOI:10.1109/TPWRS.2010.2076838