Modeling of a PV Array and Implementation of an Efficient MPPT Based ControlMechanism in Stand-Alone Photovoltaic Systems

Volume 5 Issue 2 March - May 2017

Research Paper

Modeling of a PV Array and Implementation of an Efficient MPPT Based ControlMechanism in Stand-Alone Photovoltaic Systems

Aarti Anil Ahlawat* , Diksha Gupta**, S. K. Gupta***

* PG Scholar, Deen Bandhu Chotu Ram University of Science and Technology, Sonepat, Haryana, India.

** Project Engineer, Wipro Technology, Greater Noida, India.

*** Professor, Department of Electrical Engineering, DCR University of Science and Technology, Sonepat, Haryana, India..

Ahlawat, A., and Gupta, D. (2017). Modeling of a PV Array and Implementation of an Efficient MPPT Based Control Mechanism in Stand-Alone Photovoltaic Systems. i-manager’s Journal on Circuits and Systems, 5(2), 51-61. https://doi.org/10.26634/jcir.5.2.13665

Abstract

This paper provides a brief idea about modeling of Solar Photovoltaic systems. This paper presents simulation model of PV array which is used to evaluate the electrical performance of PV array with respect to changes in temperature and irradiation. The proposed paper includes design and simulation of a 10 kW Stand-alone solar photovoltaic system. The equivalent circuit model of a cell is simulated using Matlab/Simulink to examine a typical 235 W solar module and 10 kW solar PV array. In this paper, an MPPT tracker using modified Adaptive P & O algorithm is proposed to improve the efficiency of solar photovoltaic system. The algorithm identifies a particular duty ratio at which the DC-DC converter should operate to maximize the power output. The proposed model is designed with the help of Matlab/Simulink. The data provided by the manufacturer are used to calculate the non-linear parameters. The characteristic of the proposed model is compared with reference PV module. The 230 W PV modules manufactured by Sun module SW 230 poly/Version 2.0 and 2.5 Frame are used as a reference. The large solar PV array system is modeled and simulated using the data provided in this module. The proposed model results in improved performance of solar photovoltaic systems.