Universiti Teknologi Malaysia Institutional Repository

Modeling and control of a photovoltaic energy system using the state-space averaging technique

Chee Wei, Tan and Jamri, Mohd. S. (2010) Modeling and control of a photovoltaic energy system using the state-space averaging technique. American Journal of Applied Sciences, 7 (5). 682 - 691. ISSN 1546-9239 (Print); 1554-3641 (Online)

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Official URL: http://dx.doi.org/10.3844/ajassp.2010.682.691

Abstract

Problem statement: This study presented the modeling and control of a stand-alone Photovoltaic (PV) system using the state-space averaging technique. Approach: The PV module was modeled based on the parameters obtained from a commercial PV data sheet while state-space method is used to model the power converter. A DC-DC boost converter was chosen to step up the input DC voltage of the PV module while the DC-AC single-phase full-bridge square-wave inverter was chosen to convert the input DC comes from boost converter into AC element. The integrated state-space model was simulated under a constant and a variable change of solar irradiance and temperature. In addition to that, maximum power point tracking method was also included in the model to ensure that optimum use of PV module is made. A circuitry simulation was performed under the similar test conditions in order to validate the state-space model. Results: Results showed that the state-space averaging model yields the similar performance as produced by the circuitry simulation in terms of the voltage, current and power generated. Conclusion/Recommendations: The state-space averaging technique is simple to be implemented in modeling and control of either simple or complex system, which yields the similar performance as the results from circuitry method.

Item Type:Article
Uncontrolled Keywords:photovoltaic, state-space averaging, boost converter, single-phase square-wave inverter
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:26252
Deposited By: Liza Porijo
Deposited On:29 Jun 2012 03:27
Last Modified:10 Jul 2014 04:00

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