International Journal of Robotics and Control Systems
Vol 4, No 2 (2024)

A Combination of INC and Fuzzy Logic-Based Variable Step Size for Enhancing MPPT of PV Systems

Ouassa Mohammed Lamine (El-Oued University)
Noureddine Bessous (El-Oued University)
Borni Abdelhalim (Ghardaïa Université)
Fahd A. Banakhr (Yanbu Industrial College)
Mohamed I. Mosaad (Yanbu Industrial College)
Mammeri Oussama (El-Oued University)
Mohamed Metwally Mahmoud (Aswan University)



Article Info

Publish Date
07 Jun 2024

Abstract

The significance of using the variable step Incremental Conductance (INC) technique in Maximum Power Point monitoring (MPPT) of photovoltaic (PV) systems resides in its capacity to improve the efficiency of energy conversion. This is accomplished through the constant measurement and comparison of incremental changes in current and voltage, precisely monitoring the maximum power point amidst changing environmental conditions. This traditional INC-MPPT approach has two primary disadvantages. Initially, it employs a predetermined scaling factor that necessitates human adjustment. Furthermore, it adjusts the inclination of the PV characteristics curve to modify the step size. This implies that even little changes in PV module voltage will have a substantial impact on the total step size. As a result, it shifts the operating point away from the intended reference maximum power point. The objective of this work is to improve the efficiency of traditional INC by overcoming the constraints associated with step size modifications. This is achieved by using a fuzzy logic (FL) technique to adjust the step size adaptively in response to environmental changes. The presented INC-FL-MPPT successfully achieves MPPT for a PV system under enhanced steady-state and transient-state settings. The results demonstrate the superiority of the suggested approach compared to three distinct MPPT strategies, namely Perturb and Observe (PO), Classical INC, and PO-FL technique.

Copyrights © 2024






Journal Info

Abbrev

IJRCS

Publisher

Subject

Control & Systems Engineering Electrical & Electronics Engineering

Description

International Journal of Robotics and Control Systems is open access and peer-reviewed international journal that invited academicians (students and lecturers), researchers, scientists, and engineers to exchange and disseminate their work, development, and contribution in the area of robotics and ...