Role of electromechanical wave propagation in power systems

Li, Tianya, Ledwich, Gerard, & Mishra, Yateendra (2013) Role of electromechanical wave propagation in power systems. In 2013 IEEE Power and Energy Society General Meeting (PES), IEEE PES, Vancouver, BC, Canada, pp. 1-5.

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In a large interconnected power system, disturbances initiated by a fault or other events cause acceleration in the generator rotors with respect to their synchronous reference frame. This acceleration of rotors can be described by two different dynamic phenomena, as shown in existing literature. One of the phenomena is simultaneous acceleration and the other is electromechanical wave propagation, which is characterized by travelling waves in terms of a wave equation. This paper demonstrates that depending on the structure of the system, the exhibited dynamic response will be dominated by one phenomenon or the other or a mixture of both. Two system structures of choice are examined, with each structure exemplifying each phenomenon present to different degrees in their dynamic responses. Prediction of dominance of either dynamic phenomenon in a particular system can be determined by taking into account the relative sizes of the values of its reduced admittance matrix.

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ID Code: 66086
Item Type: Conference Paper
Refereed: Yes
Keywords: interconnected power system, electromagnetic wave propagation, travelling waves, power system
DOI: 10.1109/PESMG.2013.6672577
ISSN: 1944-9925
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 14 Jan 2014 01:09
Last Modified: 20 Jul 2017 09:01

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