Int J Performability Eng ›› 2021, Vol. 17 ›› Issue (12): 989-997.

### Modelling and Performance Evaluation of MPPT-based Solar PV System with Different Interfaces in MATLAB/Simulink Environment

Snehashis Ghoshala,*, Sumit Banerjeea, and Chandan Kumar Chandab

1. aDepartment of Electrical Engineering, Dr.B.C.Roy Engineering College, Durgapur, 713206, India;
bDepartment of Electrical Engineering, Indian Institute of Engineering Science and Technology, Howrah, 711103, India
• Contact: * E-mail address: snehashis0007@gmail.com

Abstract: In photovoltaic systems, electricity is generated through solar cells. A single cell generates very minimal power. Several such cells are suitably connected to obtain a feasible value of power. Such an arrangement is called a module. Several such arrangements are again suitably connected to get the desired power. In this study, analysis of a photovoltaic (PV) system is carried out to obtain maximum power output under fixed radiation and variable temperature conditions. The modelled system consists of three different parts. The first one is the generation part that is formed by a solar PV array. The second part is a power electronic interface. For the present study, the system is taken to be a dc system and hence, the interface is a DC-DC converter. Three such DC-DC converters are analyzed in the present study. The third part is the load, which is taken to be a pure resistance in the study as the system is a DC system. It is evident that the output of a PV system is depended on solar irradiation falling on the PV arrangement as well as the ambient temperature. Therefore, the system will be more effective if it is operated on the maximum power point. In this regard, the power electronic interface helps the system obtain maximum power point tracking (MPPT). In the present study, a controller based on Perturb and Observe (P&O) method is used to control the duty ratio of the power electronic interface so that the system runs on the maximum power point position.