Robust control strategy for PV system integration in distribution systems

M.J. Hossain, T.K. Saha, N. Mithulananthan and H.R. Pota

Applied Energy, 2012, vol. 99, issue C, 355-362

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.

Keywords: Distributed generation; Photovoltaic (PV) generators; Voltage constraints; Decentralized control; Generation and load uncertainties (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:99:y:2012:i:c:p:355-362

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DOI: 10.1016/j.apenergy.2012.05.027

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