Advancements in flexible power point tracking and power control strategies for photovoltaic power plants: A comprehensive review
Maaz Nusrat, Saad Mekhilef, Marizan Mubin, Sajib Ahmed, Mehdi Seyedmahmoudian, Alex Stojcevski, Obaid Alshammari
Abstract
A tremendous growth in installed photovoltaic (PV) capacity and widespread use makes solar energy an important renewable energy source today. Voltage fluctuations and power quality problems are becoming more and more of a problem as the integration of PV power plants expands. In response, grid-connected PV systems' operational issues and the fluctuation of PV power generation have been addressed via the development of flexible power point tracking (FPPT) solutions. This review study provides a comprehensive analysis of FPPT strategies for PV power generation systems. It categorizes and describes various FPPT methods, studying their tracking performance under different working conditions and analyzing their underlying principles. One key advantage of FPPT strategies lies in their ability to operate PV systems below their maximum power point, thereby allowing for better control and active power reserve. Additionally, these strategies can provide essential grid support services, such as voltage control and frequency support. The work provides a baseline for scientists and researchers looking to adopt appropriate FPPT approaches. This research reveals common trends and efficient procedures for future investigations by contrasting methods based on their properties, such as their operating region selection and performance under partial shading circumstances. • Describing the operation of different FPPT algorithms. • Analysing the pros and cons of different techniques. • Comprehensive comparative analysis of 33 FPPT algorithms for PV systems. • Segregating the algorithms into distinct categories for recommending the best one. • Guidelines for selecting the most suitable FPPT algorithm for specific applications.