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2 - Characteristics
T
opographic diagram of the equipment
The diagram summarises the internal structure of the inverter.
The main blocks are the DC-DC input converters (called "boosters") and
the output inverter. The DC-DC converter and the output inverter both
work at a high switching frequency, and so are small and relatively light.
Each of the input converters is dedicated to a separate array, with inde-
pendent maximum power point tracking (MPPT) control.
This means that the two arrays may be installed with various positions or
orientations. Each array is controlled by an MPPT control circuit.
The two trackers can be configured (where required) in parallel to handle
power levels and/or current higher than those that a single tracker can
handle.
This inverter version is of the type without transformer, that is without gal-
vanic insulation between the input and the output. This allows ultimately
an increase in conversion efficiency. The inverter is already equipped
with all the protections necessary for safe operation and compliance with
the norms, even without the insulating transformer.
The inverter is controlled by two independent DSPs (Digital Signal Pro-
cessors) and a central microprocessor.
The connection to the power grid is thus kept under control by two inde-
pendent computers, in full compliance with the electric field norms both
for power supply to the systems as well as security.
The operating system carries out the task of communicating with its com-
ponents in order to carry out data analysis.
In doing all this, we guarantee optimal operation of the whole complex
and a high performance in all sunlight conditions and always ensuring
full compliance with the relevant directives, standards and regulations.
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