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A robust Power system stabilizer design

โœ Scribed by SHEN CHEN; O. P. MALIK; TONGWEN CHEN

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
882 KB
Volume
18
Category
Article
ISSN
0143-2087

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โœฆ Synopsis

Power system stabilizers (PSSs) have been widely used in electric power systems to provide extra damping for synchronous generators. An H -optimization-based robust control design methodology is presented in this paper for PSS design. The proposed technique takes into account system uncertainties due to incomplete knowledge of the physical parameters, neglected high-frequency dynamics and invalid assumptions made in the model formulation process. It also focuses on power system stabilizer design using a normal design model with an uncertainty description which represents the possible perturbation of a synchronous generator around its nominal operating point. The proposed excitation controller enables the power system to be stable over a wide range of operating conditions. The robust PSS has been tested on a single machine and on a multimachine system. 1997

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