סמינר אלקטרוניקה פיזיקאלית רנן נדלין כרמלי

You are invited to attend a lecture

Sub-Panel Sizing Optimization in  Distributed Maximum Power Point (DMPPT) Photo-Voltaic (PV) Systems

By:

Renen Nadlin Carmeli

M.Sc student under supervision of Prof. Sigmond Singer and Dr. Yuval Beck

Abstract

With the use of photovoltaic (PV) systems becoming increasingly prevalent worldwide, the need for higher efficiency of the power harvesting process also rises. The converting ability of a single solar cell is limited, and is affected by changes of sun irradiation, shadows, temperature, humidity, etc. Currently, most PV systems are equipped with a Maximum Power Point Tracker (MPPT), designed to simulate working conditions for the PV system, when maximum available power is extracted from it.

The objective of this research is to examine the overall efficiency of distributed MPPT (DMPPT) PV systems, to map different topologies and scenarios, and to determine whether a single global optimal sub-panel size exists.    

For the purpose of this research an algorithm was designed, which simulates different systems and scenarios, from a single PV cell topology to a full PV panel.

The results in all the tested scenarios showed that as the granularity of the DMPPT increases, a larger amount of power can be harvested. That, in spite of the fact that a dc/dc converter’s efficiency significantly diminishes as input power is reduced.

On Thursday, March 30, 2017, 11:00

Room 011, Kitot building