Robust control strategy for PV system integration in distribution systems

Hossain M. J., Saha T. K., Mithulananthan, N. and Pota H. R. (2012) Robust control strategy for PV system integration in distribution systems. Applied Energy, 99 355-362. doi:10.1016/j.apenergy.2012.05.027


Author Hossain M. J.
Saha T. K.
Mithulananthan, N.
Pota H. R.
Title Robust control strategy for PV system integration in distribution systems
Journal name Applied Energy   Check publisher's open access policy
ISSN 0306-2619
1872-9118
Publication date 2012-11
Sub-type Article (original research)
DOI 10.1016/j.apenergy.2012.05.027
Open Access Status
Volume 99
Start page 355
End page 362
Total pages 8
Place of publication Oxford, United Kingdom
Publisher Pergamon
Collection year 2013
Language eng
Abstract This paper proposes a decentralized control strategy for higher penetration of photovoltaic (PV) units without violating system operating constraints. A systematic procedure is developed and a robust controller is designed to ensure both dynamic voltage and transient stability for a specific PV integration level. The change in the model due to the volatile nature of PV generations is considered as an uncertain term in the design algorithm. Simultaneous output-feedback linear quadratic controllers are designed for PV generators. This designed control scheme is robust with respect to intermittency and enhances the integration level in a sub-transmission and distributed system. The effectiveness of the proposed controller is verified on a 43-bus industrial meshed distribution system under large disturbances. It is found that the designed control scheme enhances stability and increases the renewable integration levels.
Keyword Distributed generation
Photovoltaic (PV) generators
Voltage constraints
Decentralized control
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: Tue, 18 Sep 2012, 15:14:35 EST by Dr Mithulan Nadarajah on behalf of School of Information Technol and Elec Engineering