Installed on each PV panel, micro inverters process power for one panel only (typically less than 500W). Each micro inverter includes both the DC-DC and DC-AC inverter stage. The advantages of this configuration include scalability as well as distributed MPPT to optimize each PV panel. The MPPT for the PV panels are performed centrally at the inverter stage.
Distributed Maximum Power Point Tracking System (D-MPPT)
In low power (190W~500W) distributed-MPPT systems, such as the micro inverter and micro converter architectures, the MPPT is performed at each PV module. These low power systems can be integrated into the frame of the PV module. The micro inverter is often called an "AC-module" and the micro converter is often called a "DC-Optimizer."