Analysis of Inverter-Voltage Influence on Distributed MPPT Architecture Performance

More and more distributed maximum power point tracking (DMPPT) architectures, based on a dc-dc converter for every single photovoltaic (PV) panel, are being released and launched to the market as an alternative to traditional MPPT configurations. Ideally, they can solve any mismatching problem, but actually, this is not always feasible. This paper analyzes the static performance of this kind of architectures in order to determine the key factors to bear in mind in the design of the system. Above all, this paper points out the inverter-voltage influence on the overall performance of the PV system.