Technical data

Step-by-step procedure for configuration of the photovoltaic generator with Aurora Designer
Step 2 – Data input system configuration
•To dimension the PVI-55.0/67.0 and PVI-110.0/134.0 inverters you
can directly choose the inverter models from the list of available
inverters:
•configuration of independent MPPT channels  Multi-
Master
•configuration of parallel MPPT channels  Master/Slave
•The dimensioning of the centralized inverters with power greater
than 110/134 kW must take into consideration the modularity of
the inverter, and therefore you the PVI-55.0/67.0 inverter must be
selected (configuration of the single module)
•If Multi-Master configuration is selected, the configuration
can be freely repeated or varied
•If Master/Slave configuration is selected, each module
must maintain the same number of panels/string .
•If Multi-Master/Slave configuration is selected, each pair
of modules can be dimensioned by choosing the PVI-
110.0/134.0 models with MPPT in parallel (Master/Slave)
and dimensioning the generator of each framework.
Step 3 – Evaluation of the configuration results
The configurator immediately returns a response on the
feasibility/non-feasibility/optimization of the configuration!
Non-allowed configuration : one or more voltage/current exceed the
inverter operation limits
Allowed cofiguration : all the voltages/currents fall within the inverter
operation limits
Optimised configuration: the Vmp,typ@ Tamb=25°C voltage is around
the inverter rated input voltage value.
ATTENTION!
The rated installed power
DOES NOT GENERATE ALARM CONDITIONS,
but only the indication of a possible limitation of inverter
power!
Though the inverter can work in limited power mode, it is not
convenient because it reduces the amount of power produced
by the system!
Dimensioning systems with Power-One inverters