Adaptive Optimal Control of a Grid-Independent Photovoltaic System

[+] Author and Article Information
Gregor P. Henze

Architectural Engineering, University of Nebraska–Lincoln, 1110 South 67th St., Peter Kiewit Institute 203D, Omaha, Nebraska 68182-0681e-mail: ghenze@unl.edu

Robert H. Dodier

Civil, Environmental, and Architecural Engineering, University of Colorado at Boulder, Campus Box 428, Boulder, CO 80309-428e-mail: dodier@colorado.edu

J. Sol. Energy Eng 125(1), 34-42 (Jan 27, 2003) (9 pages) doi:10.1115/1.1532005 History: Received April 01, 2002; Revised August 01, 2002; Online January 27, 2003
Copyright © 2003 by ASME
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PV array with battery and load in parallel
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Electrical load profile
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Illustration of Bellman’s principle of optimality
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Annual profile of global horizontal radiation for Albuquerque, New Mexico
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Power output of the PV array
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Annual profile of state-of-charge for PV-priority and optimal control strategies
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Profile of state-of-charge for PV-priority and optimal control strategies for three-week period in February and March
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Profile of state-of-charge for PV-priority and optimal control strategies for one-week period in February for various exploration levels
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Load versus supplied power
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State-of-charge as a function of control strategy
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Value of low state-of-charge and collector output



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