APS 6RL Series, Руководство по эксплуатации

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6RL SERIES OPERATION MANUAL
SECTION 6: FRONT PANEL OPERATION
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2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual Page 111 of 204
6.11.3 Mode MPP3
Also called “fast track”, this mode is very similar to mode MPP2, but without the initial step
which is used to find the actual MPP, because mode MPP3 directly jumps to the power point
defined by user input (UMPP, PMPP). In case the MPP values of the equipment under test
are known, this can save a lot of time in repetitive tests. The rest of the function run is the
same as with MPP2 mode. During and after the function, the lowest acquired MPP values of
voltage (UMPP), current (IMPP) and power (PMPP) are shown in the display.
Following parameters can be configured for tracking mode MPP3:
Value Range Description
UMPP 0...Nominal value of U Voltage in the MPP
ISC 0...Nominal value of I Short-circuit current, max. specified current of the solar panel
PMPP 0...Nominal value of P Power in the MPP
Δt 5 ms...65535 ms Interval for measuring U and I during the process of finding the MPP
ΔP 0 W...0.5 PNom Tracking/regulation tolerance below the MPP
6.11.4 Mode MPP4
This mode is different, because it does not track automatically. It rather offers the choice to
define a user curve by setting up to 100 points of voltage values, then track this curve,
measure current and power and return the results in up to 100 sets of acquired data. The
curve points can be entered manually or loaded from USB stick. Start and end-point can be
adjusted arbitrarily, Δt defines the time between two points and the function run can be
repeated up to 65535 times. Once the function stops at the end or by manual interrupt, the
DC input is switched off and the measured data is made available. After the function, the
acquired set of data with the highest actual power is shown in the display as voltage
(UMPP), current (IMPP) and power (PMPP) of the MPP. Going back on the screen with
RETURN then allows for data export to USB thumb drive.
Following parameters can be configured for tracking mode MPP4:
Value Range Description
U1...U100
0...Nominal value of U Voltage for the up to 100 user definable curve points
Start 1-100 Start point for the run of x out of 100 subsequent points
End 1-100 End point for the run of x out of 100 subsequent points
Δt 5 ms...65535 ms Time before the next point
Rep. 0-65535 Number of repetitions for the run from Start to End