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Journal ArticleOpen Access

A Frequency-Control Approach by Photovoltaic Generator in a PV–Diesel Hybrid Power System

Author Affiliations
Khulna University of Engineering and Technology, University of the Ryukyus, Meidensha (Japan), Sungkyunkwan University
Published InIEEE Transactions on Energy Conversion
Year2011
Citations274

Abstract

A photovoltaic (PV) system's output power fluctuates according to the weather conditions. Fluctuating PV power causes frequency deviations in the power utilities when the penetration is large. Usually, an energy storage system (ESS) is used to smooth the PV output power fluctuations and then the smoothed power is supplied to the utility. In this paper, a simple fuzzy-based frequency-control method is proposed for the PV generator in a PV-diesel hybrid system without the smoothing of PV output power fluctuations. By means of the proposed method, output power control of a PV generator considering the conditions of power utilities and the maximizing of energy capture are achieved. Here, fuzzy control is used to generate the PV output power command. This fuzzy…
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