© EPS Stromversorgung in 2022, this information is subject to change without notice
87
30000800_manual_psb_10000_4u_30kw_en_04
Schematic diagram:
Application and result:
U
I
I
SC
U
OC
MPP
I
M
PP
U
MPP
Adjust all four parameters on screen to the desired values. Whether the
calculated IU and P curves which result from those values make sense
or not can be verified with tools which can visualize the curve data, such
as EPS Power Control (only with unlocked Function Generator app) where
you could enter the same values and have the curve visualized upon but-
ton click.
While the simulation is running, the user can see from the actual values
(voltage, current, power) of the DC output, where the operating point of the
power supply resp. of the simulated solar panel is. The adjustable value
Ir-
radiance
(0%...100% in 1% steps, see screenshot below) helps to simulate
different light situations from darkness (no power output) to the minimal
amount of light that is required to have the panel provide full power.
►
How to configure the PV table
1.
In the function generator menu swipe to find group
PV table (PS)
and tap it.
2.
Adjust the four parameters as required for the simulation.
3.
Do not forget to adjust the global limits for voltage and power in the next
screen. The voltage (U) setting is automatically set as high as U
oc
and should
not be lower, but can be higher.
4.
Proceed to the main function screen with
. Contrary to other
functions, the DC output is not automatically switched on, because then
the function would immediately. The function is only started when the user
switches the DC output on.
Irra
dianc
e 0
..10
0%
U
I
Uoc
MPP
From the main function generator screen, you can go back to the first screen of PV table function and use a formerly locked
Import/Export
action button to save the calculated table to a USB stick. In order to do so, follow the on-screen instructions.
The table can be used to analyze/visualize the values in Excel or similar tools.
►
How to work with the PV table function
1.
With an appropriate load connected, for example a solar inverter,
start the function.
2.
Adjust value
Irradiance
with any rotary knob or per touch input
between 100% (default) and 0%, in order to reproduce different
light situations for the simulated panel. The actual values on
the display indicate the working point and can show whether
the simulation has arrived at the MPP or not.
3.
Stop the function run anytime by the stop button or by switching
off the DC output.
