Country-
spec. Set-
tings
Men
u
level
Display/
Setting
Action in this menu/meaning
Settling time
1,000 – 120,000
[ms] / 2,000 [ms]
10
Settling time in the event of an abrupt change in the reactive power tar-
get value (e.g. caused by a voltage jump). The transient behavior corre-
sponds to a first-order filter (PT-1) with settling time = 5 Tau.
NOTE: The settling time is overlaid with the increasing and de-
creasing gradient.
Min. cos-phi Q1 - Min.
cos-phi Q4
0 – 1 / 0 /
0,001
In the event of a significant voltage deviation, the maximum reactive
power adjustment range can be limited by a minimum cos ϕ in order to
prevent an excessive reactive power supply and, as a result, a significant
reduction in the maximum active power that can be fed in.
Q1
Minimum cos ϕ in over-excited operating mode (in-feed).
Q4
Minimum cos ϕ in under-excited operating mode (in-feed).
Q2
Minimum cos ϕ in over-excited operating mode (charge).
Q3
Minimum cos ϕ in over-excited operating mode (charge).
Priority mode
Q priority | P priority
P priority can be selected as an alternative to the standard setting Q pri-
ority. When it comes to P priority, the reactive power adjustment range
is limited subject to the limited apparent power of the inverter and the
active power that is currently available and fed in.
Active curve
1 – 4 / curve 1 TMP /
curve 2 / curve 3 /
curve 4
Up to four characteristic curves can be configured independently and
one of them can be activated for regulation each time.
Number of nodes
2 – 10
Specify the number of nodes for the Q(U) characteristic curve.
1. Stützstelle … 10.
Stützstelle
Power
| Voltage |
Excitation
0 – 100 [% S
lim
] /
43.6 [% S
lim
] / 0.1
Power of the node as a percentage of the maximum power.
For the 1st node, the power must be 0%; for the last node, the power
must be 100%. The power values of the nodes must increase continu-
ously.
Power |
Voltage
|
Excitation
0 – 125 [% S
lim
] /
43.6 [% U
nom
] / 0.1
Voltage of the node in volts.
The voltage values of the nodes must increase continuously. At voltages
below the 1st node and voltages above the last node, the reactive
power value of the 1st or last node is used each time.
Over-excited | un-
der-excited
Reactive power mode Under-excited relates to inductive load, over-ex-
cited relates to capacitive load.
10.2
Regulating active power
Methods for regulating the active power of generation plants may be necessary for local management of load
flows, for voltage stability in the distribution network and for ensuring the stability of the interconnected grid.
The communication functions
P limit
and
P set (not PV!)
are available for managing load flows in a
plant. If necessary, this can be used to reduce the feed of the inverter.
If it is not possible to compensate adequately for voltage excesses in the upstream distribution network by in-
take on reactive power, it may be necessary to curtail the active power. In this case, P(U) control is available for
making optimum use of the capacity of the upstream grid.
Generation plants must assist with frequency stability in the grid. If the grid frequency leaves the normal toler-
ance range (e.g. ±200 mHz), then the grid will be in a critical state. In the event of overfrequency, there is a
generation surplus, in the event of underfrequency, there is a generation deficit. In the case of overfrequency
and underfrequency, photovoltaic systems and power storage systems must reduce their effective feed-in
power in relation to the increase in frequency. The P(f) function is available for this purpose.
10 | Specifications
Manual
blueplanet gridsave 92.0 TL3-S blueplanet gridsave 110 TL3-S blueplanet gridsave 137 TL3-S
Page 70
EN-US
