Designing a PV inverter system The two primary sub-components in
a PV inverter systems typically are the controller used to
implement system management tasks and control algorithms, and
the AC-to-DC conversion circuit. The controller is used for
tasks including grid and system monitoring, system
synchronization with utility power for grid-connected systems,
and output power quality monitoring. The controller also
performs protective functions for safety and compliance with
various standards and regulations. Other key functions include
data logging, firmware updates, and communications with the
system operator, as well as battery charging control for
standalone systems, and smart metering used for grid-connected
PV systems. One other important controller responsibility is the
execution of control and energy management algorithms. In
addition to being very computationally demanding, these tasks
can also impact power efficiency. The DC-to-AC conversion
circuit also plays an important role, handling all the tasks