A new approach to the dynamic security assessment of power systems including relay performance
Dobraca, Fadil
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Permalink
https://hdl.handle.net/2142/21054
Description
Title
A new approach to the dynamic security assessment of power systems including relay performance
Author(s)
Dobraca, Fadil
Issue Date
1990
Doctoral Committee Chair(s)
Pai, M.A.
Department of Study
Electrical and Computer Engineering
Discipline
Electrical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Date of Ingest
2011-05-07T12:57:01Z
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
In this thesis, security assessment of a power system under large disturbances has been studied. A protective system (relays) has been included in the power system model and a new measure that quantitatively describes the dynamic reponse of the system together with a procedure to identify the set of vulnerable relays have been presented. Next, the algorithm for fast approximation of the system response under large disturbances has been proposed. The impact of the presence of the fast and slow dynamics has been addressed from a computational point of view. Finally, the sensitivity theory has been used to establish the scheme for preventive action.
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