By Topic

Transient stability analysis of large-scale power systems with speed governor via vector Lyapunov functions

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $33
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
H. Shaaban ; University of Menoufia, Faculty of Engineering and Technology, Menouf, Egypt ; Lj. Gruji¿

In the paper, transient stability analysis of an N-machine power system is carried out using the decomposition-aggregation method. In the study, transfer conductances, mechanical damping, electromagnetic damping and speed governor action are taken into consideration. The system decomposition is performed so that every subsystem includes three machines, instead of only two machines as for the pair-wise decomposition. The system mathematical model is derived and decomposed into (N ¿¿ l)/2 sixth-order and one second-order interconnected subsystems. A vector Lyapunov function, whose elements are Lyapunov functions of the free (disconnected) subsystems, is constructed and used for the system aggregation. A seven-machine power system is used as an illustrative example, and an asymptotic stability domain estimate is determined for the system. It is found that the proposed decomposition scheme can lead to a considerable reduction in the conservativeness of the decomposition-aggregation method. It is found also that the pair-wise decomposition-aggregation approaches developed so far are not suitable for stability analysis of largescale power systems.

Published in:

IEE Proceedings D - Control Theory and Applications  (Volume:132 ,  Issue: 2 )