Optimum load matching in direct-coupled photovoltaic power systems - application to resistive loads

Khouzam, Kamel Y. (1990) Optimum load matching in direct-coupled photovoltaic power systems - application to resistive loads. IEEE Transactions on Energy Conversion, 5(2), pp. 265-271.

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In this paper the load matching factor is used as a measure for the quality of load matching to the photovoltaic (PV) array. An optimization approach is used to solve the load matching problem with the objective of maximizing the load matching factor, and consequently the PV output energy. Thig approach is then applied to resistive loads (with and without an internal emf) connected to the array. Results show that optimum matching can be achieved by carefully selecting the array parameters with respect to the load parameters. The temperature of the array has little effect on the optimum matching factor. However, the optimum matching parameters are greatly affected by the array temperature. A maximum power tracker may not be needed if optimum or near optimum matching is achieved. A battery of selected parameters can be included if the load characteristic results in poor matching performance.

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30 citations in Web of Science®
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ID Code: 6662
Item Type: Journal Article
Refereed: Yes
Keywords: load matching, photovoltaic array sizing, battery capacity, maximum power tracker, per, unit system
DOI: 10.1109/60.107220
ISSN: 0885-8969
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > NUMERICAL AND COMPUTATIONAL MATHEMATICS (010300) > Optimisation (010303)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 1990 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 27 Mar 2007 00:00
Last Modified: 09 Jun 2010 12:38

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