Abstract
Distributed maximum power point tracking (DMPPT) is an effective method to address the problem of photovoltaic (PV) mismatch and improve the utilization of PV elements. Differential power processing (DPP) is considered a very satisfactory power processing method for submodule level DMPPT. This paper introduces two power processing methods, FPP and DPP, analyses the three DMPPT power transmission architectures based on DPP, PV-PV, PV-bus and PV-IP, and compares the implementation complexity, converter volume, control difficulty, and hardware cost of various typical implementation topologies, and finally analyses the two most common control methods of DMPPT, voltage equalization (VE) and true MPPT.
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