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Energies 2012, 5(12), 5307-5323; doi:10.3390/en5125307

A Simple Sizing Algorithm for Stand-Alone PV/Wind/Battery Hybrid Microgrids

College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
* Author to whom correspondence should be addressed.
Received: 13 September 2012 / Revised: 19 November 2012 / Accepted: 29 November 2012 / Published: 14 December 2012
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In this paper, we develop a simple algorithm to determine the required number of generating units of wind-turbine generator and photovoltaic array, and the associated storage capacity for stand-alone hybrid microgrid. The algorithm is based on the observation that the state of charge of battery should be periodically invariant. The optimal sizing of hybrid microgrid is given in the sense that the life cycle cost of system is minimized while the given load power demand can be satisfied without load rejection. We also report a case study to show the efficacy of the developed algorithm.
Keywords: optimal sizing; microgrid; renewable energy; periodically invariant optimal sizing; microgrid; renewable energy; periodically invariant
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Li, J.; Wei, W.; Xiang, J. A Simple Sizing Algorithm for Stand-Alone PV/Wind/Battery Hybrid Microgrids. Energies 2012, 5, 5307-5323.

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