Technical data
Note:
Check local legal requirements before changing settings for ancillary services.
10.2. Power Level Adjustment
The inverter supports Power Level Adjustment (PLA) as required by the German EEG for sys-
tems above 100 kW. To control the functionality, a grid management interface is necessary.
This is available via third-party suppliers for all TripleLynx CN inverters, or via the Danfoss Grid
Management Box for TLX CN Pro and TLX CN Pro+ inverters.
For certification purposes ± 3% accuracy is permitted, and this requirement is met.
10.3.
Primary Frequency Control
10.3.1. Low-Voltage Primary Frequency Control
To support grid stabilisation, the inverter derates output power if the grid frequency exceeds
50.2 Hz. Derating occurs at a rate of 40 % per 1 Hz, which is the slope (S) shown in the illus-
tration. When the frequency reaches 51.5 Hz, the inverter disconnects from grid. When the fre-
quency decreases below 51.5 Hz, the inverter reconnects to grid and ramps up power at the
same rate as for derating.
Illustration 10.1: Low-Voltage Primary Frequency Control
10.3.2. Medium-Voltage Primary Frequency Control
The inverter derates output power when required, to support grid frequency stabilisation.
• When grid frequency exceeds a defined limit (Activation) f1, the inverter derates the
output power.
• When grid frequency has decreased to a defined limit (Deactivation) f2, the output
power increases.
10. Ancillary Services
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