Power Electronics and Control Techniques for Maximum Energy Harvesting in Photovoltaic Systems

5

Design of High-Energy-Efficiency Power Converters for PV MPPT Applications

5.1    Introduction

In the previous chapters, issues related to topologies and control techniques in the achievement of maximum power point tracking of PV sources have been discussed. We are now ready to focus on the ultimate objective of the methodologies discussed in this book: achieving maximum energy harvesting in PV systems. Such achievement is the fruit of appropriate combinations of power converter topology, power devices, and control techniques. On the topology side, we have seen in Chapter 4 that buckboost DC/DC converters allow a potentially wider DMPPT operating range, thanks to step-up/down capabilities. However, this result can be compromised if silicon ...