Technical data

10. Ancillary Services
10.1. Introduction
Ancillary services comprise inverter functionalities which aid transport of power on grids.
Which ancillary services are required for a given PV system are determined by the point of com-
mon coupling (PCC) and the grid type to which the system is connected.
The PCC is the point where the PV system is connected to the public electricity grid.
In residential installations, connection of the house and connection of solar inverters to the grid
usually occur at the same point. The installation becomes part of the low-voltage (LV) distribu-
tion system.
Commercial installations are normally larger and therefore connected to the medium-voltage
system.
The largest commercial systems, such as power plants, can be connected to the high-voltage
grid.
Each of the power systems has individual ancillary service requirements.
For some local DNOs the support of such services is mandatory.
Ancillary services available with TripleLynx CN include:
Power Level Adjustment
Primary Frequency Control
Reactive Power
Fault Ride Through
The following overview illustrates the ancillary services provided by each inverter variant.
Ancillary Services
Relevant
Grid Type
Level of Control TLX CN TLX CN+
TLX CN
Pro
TLX CN
Pro+
Individual
Inverter Level
Master
Inverter Level
Power Level Adjustment
(PLA)
LV/MV
󲚏
󲚏 󲚏
Primary Frequency Con-
trol, P(F)
LV/MV
󲚏
󲚏
Reactive Power
󲚏
󲚏
Constant PF LV/MV
󲚏
󲚏
Constant Q
MV
󲚏
󲚏
PF(P)
LV/MV
󲚏
󲚏
Q(U)
MV
󲚏
󲚏
Fault Ride Through MV
󲚏
󲚏
󲚏
Table 10.1: Ancillary Services - Controlled by Master Inverter
Ancillary Services
Relevant
Grid Type
Level of Control TLX CN TLX CN+
TLX CN
Pro
TLX CN
Pro+
Individual
Inverter Level
Third-party
Product
Power Level Adjustment
(PLA)
LV/MV
󲚏 󲚏 󲚏 󲚏 󲚏
Primary Frequency Con-
trol, P(F)
LV/MV
󲚏
󲚏
󲚏
Reactive Power
󲚏
󲚏
Constant PF LV/MV
󲚏
󲚏
󲚏
Constant Q
MV
󲚏
󲚏
󲚏
PF(P)
LV/MV
󲚏
󲚏
Q(U)
MV
Fault Ride Through MV
󲚏
󲚏
󲚏
Table 10.2: Ancillary Services - External Control
10. Ancillary Services
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