“Modified Algorithms for MPPT in PV Modules”

Abstract

Nowadays, renewable energy resources play an important role in replacing conventional fossil fuel energy resources. Solar photovoltaic (PV) systems are distributed sustainable energy sources that are an environmentally friendly and promising renewable source of energy resources which grew rapidly in the past few years. However, Photovoltaic have some drawbacks as it needs a high capital cost but it has one major problem as it is a relatively low efficiency system because the solar PV power fluctuates due to variations in operating conditions of the array like radiation and temperature levels so the voltage at which maximum power can be obtained from it also changes. As a consequence, the Solar panels have a nonlinear voltage- current characteristic, with a distinct maximum power point (MPP), which depends on the environmental factors. In order to continuously harvest maximum power from the solar panels, they have to operate at their MPP despite the inevitable changes in the environment. This is why the controllers of all solar power electronic converters employ some methods for Maximum Power Point Tracking (MPPT). This work hopes to alleviate this problem by using novel power electronic converter and control MPPT algorithm. Furthermore, when the solar panel is directly