Optimum matching of direct-coupled electromechanical loads to a photovoltaic generator

Author

Khouzam, Kame ; Khouzam, Lucy

Author_Institution

Sch. of Electr. & Electron. Syst. Eng., Queensland Univ. of Technol., Brisbane, Qld., Australia

Volume

8

Issue

3

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

343

Lastpage

349

Abstract

The objective of the paper is to present a general mathematical formulation for matching electromechanical loads connected to a photovoltaic array. An optimization method is then used to solve the matching problem with the objective of maximizing the gross mechanical energy. The analysis is extended to obtain the sizing of the array and the battery in the direct-coupled system. Results show that optimum matching can be achieved by carefully selecting the PV array rated parameters with respect to the load parameters. The rated power of the array is twice that of the load. The field constant that maximizes the gross mechanical energy can be obtained given the parameters of the load and the array temperature. The separately excited motor offers higher matching performance compared to the series motor. The rotodynamic load offers better matching compared to the viscous friction load

Keywords

DC motors; solar cell arrays; array sizing; array temperature; battery sizing; direct-coupled loads; electromechanical loads matching; gross mechanical energy maximisation; mathematical formulation; optimization method; photovoltaic array; photovoltaic generator; rated power; rotodynamic load; separately excited motor; series motor; viscous friction load; Batteries; Couplings; Friction; Mechanical energy; Photoconductivity; Photovoltaic systems; Solar power generation; Temperature; Thermal resistance; Voltage;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.257043

Filename

257043