Increasing the Efficiency of Photovoltaic Systems by Using Maximum Power Point Tracking (MPPT)

TL;DR

This paper investigates how Maximum Power Point Tracking (MPPT) can enhance photovoltaic system efficiency by continuously optimizing power output under varying environmental conditions through MATLAB simulations.

Contribution

It introduces a simulation-based approach to improve PV system efficiency using MPPT in grid-connected and standalone modes, demonstrating effectiveness.

Findings

Increased current, voltage, and power output of PV cells.

MPPT effectively tracks maximum power under nonlinear conditions.

Simulation results confirm efficiency improvements.

Abstract

Using Photovoltaic systems is gradually expanded by increasing energy demand. Abundance and availability of this energy, has turned to one of the most important sources of renewable energy. Unfortunately, photovoltaic systems have two big problems: first, those have very low energy conversion efficiency (in act between 12 and 42 percent under certain circumstances). Second, the power produced by the solar cell depends on nonlinear conditions such as solar radiation, temperature and charge feature. According to this, received power maximum of photovoltaic cells depends on different non-linear variables, it is necessary to be continuously traced, as maximum received power of the cell (by controller). In this research, the increasing efficiency of photovoltaic systems has been investigated by using Maximum Power Point Tracking (MPPT) in two different modes contained connected to the Grid and disconnected from the grid with simulation by MATLAB software. The obtained results showed that the proposed technique is able to improve the current, voltage and power output of photovoltaic cells.