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000770AG
2 - Characteristics
T
opographic diagram of the equipment
UNO-DM-6.0-TL-PLUS
The diagram summarises the internal structure of the inverter.
The internal circuitry is with single stage conversion and therefore con-
sists only of:
- DC-AC output converter (Inverter);
The input voltage from the PV generator is directly converted into altern-
ating output current; this requires a higher output voltage compared to
other double stage versions of the inverter.
The DC-AC converter works at a high switching frequency which means
it is small and relatively light.
The same converter is dedicated to a single string/array and is equipped
with a maximum power point tracking (MPPT) function.
This inverter version is of the transformerless type, that is without gal-
vanic insulation between the input and the output. This allows the conver-
sion efficiency to be increased further. The inverter is already equipped
with all the protections necessary for safe operation and compliance with
standards and regulations, even without the insulating transformer.
The connection to the power grid is therefore kept under control by two
independent computers, in full compliance with the electric field regula
-
tions 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 assembly
and a high performance in all sunlight conditions and always ensuring full
compliance with the relevant directives, standards and regulations.
