Investigation of MPPT for PV applications by mathematical model

Abstract

This paper will discuss the PV system as whole by emulating load and PV power supply in the lab conditions. The paper discussion would be based on the obtained results for Monocrystalline silicon PV cell module. The important point of interest would be the voltage open circuit, short circuit current, maximum power. The lab has been done in the Standard Testing Conditions (STC) to ensure a fair comparison under different conditions. This paper confirmed that as temperature increased the voltage open circuit decreases as well as power decreases, and when insolation increases the short circuit current increases makes the maximum power increases. Per unit value investigating whether temperature or insolation has a bigger impact on Pmax, and for these experimental conditions, it has been found that insolation affects the system. As well as the paper will focus on building a SIMULINK/Matlab Module to simulate PV cells under different environmental conditions and help in designing future PV systems. The work will be compared with lab-emulated data to be validated and address the accuracy of the obtained results with the real life results. The paper will study the integration of DC-DC Boost converter with open loop control feedback circuit (Fixed Duty Ratio). In addition, the paper will discuss three different approaches of Maximum Power Point Tracking (MPPT) which are P&O, RCC and INC. The performance of each one will be investigated and verified.