Keywords : MPPT
A Comparative Study of Perturb and Observe (P&O) and Incremental Conductance (INC) PV MPPT Techniques at Different Radiation and Temperature Conditions
Engineering and Technology Journal,
2022, Volume 40, Issue 2, Pages 376-385
DOI:
10.30684/etj.v40i2.2189

from photovoltaic (PV) panels under different solar radiation and temperature
conditions. This paper presents a comparative study between perturb and observe
(P & O) and incremental conduction (INC) algorithms. These are the most popular
algorithms for tracking solar PV panels and extracting the maximum power point
(MPP) under different climate conditions. The studied PV system and the MPPT
techniques have been investigated by simulation using MATLAB/Simulink. The
simulation includes a boost converter, which increases the PV panel voltage by
controlling the duty cycle. The obtained results show that the P & O performance
close to MPP under constant test conditions (STC) is better than the variable
conditions due to oscillation. In contrast, the performance of the INC algorithm is
better than P & O in terms of speed to reach MPP, accuracy, and quality under
changes in radiation and temperature conditions
Analysis and Comparison of DC-DC Boost Converter and Interleaved DC-DC Boost Converter
Engineering and Technology Journal,
2020, Volume 38, Issue 5, Pages 622-635
DOI:
10.30684/etj.v38i5A.291
The step-up converters are widespread use in many applications, including powered vehicles, photovoltaic systems, continuous power supplies, and fuel cell systems. The reliability, quality, maintainability, and reduction in size are the important requirements in the energy conversion process. Interleaving method is one of advisable solution for heavy-performance applications, its harmonious in circuit design by paralleling two or more identical converters. This paper investigates the comparison performance of a two-phase interleaved boost converter with the traditional boost converter. The investigation of validation performance was introduced through steady-state analysis and operation. The operation modes and mathematical analysis are presented. The interleaved boost converter improves low-voltage stress across the switches, low-input current ripple also improving the efficiency compared with a traditional boost converter. To validate the performance in terms of input and output ripple and values, the two converters were tested using MATLAB/SIMULINK. The results supported the mathematical analysis. The cancelation of ripple in input and output voltage is significantly detected. The ripple amplitude is reducing in IBC comparing with a traditional boost converter, and the ripple frequency is doubled. This tends to reduce output filter losses, and size.