Assessment and enhancement of small signal stability of renewable-energy-based electricity distribution system

Dahal, Sudarshan, Mithulananthan, Nadarajah and Saha, Tapan Kumar (2012) Assessment and enhancement of small signal stability of renewable-energy-based electricity distribution system. IEEE Transaction on Sustainable Energy, 3 3: 407-415.


Author Dahal, Sudarshan
Mithulananthan, Nadarajah
Saha, Tapan Kumar
Title Assessment and enhancement of small signal stability of renewable-energy-based electricity distribution system
Journal name IEEE Transaction on Sustainable Energy   Check publisher's open access policy
ISSN 1949-3029
1949-3037
Publication date 2012-07
Sub-type Article (original research)
Volume 3
Issue 3
Start page 407
End page 415
Total pages 9
Place of publication Piscataway, NJ, U.S.A.
Publisher IEEE
Collection year 2013
Language eng
Formatted abstract Market deregulation and environmental concerns of the power sector have encouraged renewable energy integration in the form of distributed generation, mainly in distribution systems. With integration of different generators and controllers, distribution systems are facing different types of stability issues which were not a concern in the past. This paper examines the small signal stability performance of a renewable energy based distribution system. The system which consists of static and dynamic loads is supplied by synchronous, induction and static generators. The existence and nature of oscillatory modes are systematically investigated. A control methodology of using existing capacitor banks to support small signal stability of a distribution system is proposed. Controllability based index is used to identify the controllable capacitor bank. Observability index has been used to design the additional controller for damping control. The effectiveness of capacitor controller is illustrated by using both eigenvalue and time domain analyses.
Keyword Capacitor
Generator
Load modeling
Controllability
Power system dynamics
Stability criteria
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Fri, 24 Feb 2012, 10:09:57 EST by Mr Sudarshan Dahal on behalf of School of Information Technol and Elec Engineering