Atec Elgar_TerraSAS - Manual (Page 4)

www.ProgrammablePower.com
1kW-1MW TerraSAS - Specifications
Where:
β Array temperature Coefficient, %/°C
T= Cell temperature, °C
V= Voltage, V
I= Current, A
FF= Fill Factor
Subscripts:
Ref= Reference (i.e., at reference or rated
conditions)
MP= Maximum Power
OC= Open Circuit
SC= Short Circuit
DC Output Connections
The output connections will use finger safe,
pressure type connectors or terminal blocks of
suitable ampacity on the rear I/O panel depending
on output current requirements.
“Multiple Hump” IV Curve
Utilizing data gathered from the Solar Advisor
Model (SAM) data base, the TerraSAS allows
the user to model systems made up of two or
more subsystems. For example, a PV system that
consists of three arrays with different orientations,
thus creating a “Multiple Hump” as shown below.
Safety
The system includes a shutdown function that
will disable the output with an open interlock
contact. In the event of an open interlock, the
PV simulator chassis will program down the DC
output and open the output relays, and provides
complete qalvamic isolation
The benefit of simulators is simply that they offer
the ability to test and invert without reliance on
a real array and can simulate PV behaviors that a
real array cannot be easily manipulated to do.
This assumes that the PV simulator can behave
like a real panel of course.
Characteristic “multiple hump” IV curve results when three PV profiles are added
4