Abstract
The paper presents new MPPT algorithm for partial shading of series connected PV cells/modules. In the shaded condition, there is a problem of decrease in the total output power of the PV system. The proposed algorithm aims to reduce this problem by active bypassing of the shaded cells. The algorithm senses the irradiance of each cell and performs calculation in order to decide if to actively bypass the shaded cell or not. Extensive simulation results proved that algorithm works and increases the output power under partial shading conditions. Furthermore, the algorithm becomes more efficient when the number of cells is increased.
Highlights
There is a constant increase in worldwide electrical power consumption and the conventional energy resources are limited
Extensive simulation results proved that algorithm works and increases the output power under partial shading conditions
Afterwards, the total output power of the PV system ( Pout ) is calculated by: Pout= Iout ∗ n ∗Vcell where n is the number of series connected cells, Vcell is the output voltage of each cell and Iout is the current of the PV module
Summary
There is a constant increase in worldwide electrical power consumption and the conventional energy resources are limited. The need for renewable energy sources is constantly increasing. The photovoltaic (PV) systems draw special attention as one of the most promising renewable energy sources due to the fact that solar energy is clean, inexhaustible, without pollution and can be harvested. The PV panels convert solar energy into electrical energy. The PV panels can be used as standalone electric power sources or integrated to the main grid as additional power source. The solar cell, in terms of an electrical source, acts as a current source. The light hits the solar cell surface and as a result the solar cell produces current [1]. The PV systems have drawbacks of electric parameters and power generation varia-
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
