ABB PVS980-58 - Page 70

68 Parameters
124.20 AC voltage control gain Defines relative gain of the AC voltage controller used in
the reactive power reference chain.
10.0 / Real
0.0 … 100.0 Relative gain of the AC voltage controller. 10 = 1
124.21 AC voltage control integ
time
Defines integration time of the AC voltage controller
used in the reactive power reference chain.
100 ms /
Real
0 … 30000 ms Integration time of the AC voltage controller. 1 = 1 ms
124.22 AC voltage diff max % Defines maximum limit for AC voltage difference. 10.0%/ Real
0.0 … 30.0% Maximum limit of AC voltage difference. 1 = 1%/
10 = 1%
124.23 AC voltage diff min % Defines maximum negative limit for the AC voltage
difference (reference - actual) used in the reactive power
reference chain.
-10.0%/ Real
-30.0 … 0.0% Maximum negative limit for AC voltage difference. 1 = 1%/
10 = 1%
124.24 AC voltage control sig Selects the grid voltage signal for AC voltage control. Max phase
rms voltage/
List
Max LL rms voltage Maximum rms value of line-to-line voltage. 0
Min LL rms voltage Minimum rms value of line-to-line voltage. 1
Max phase rms voltage Maximum rms value of phase voltage. 2
Min phase rms voltage Minimum rms value of phase voltage. 3
Pos seq voltage Positive sequence component of voltage. 4
124.25 Deadband range Defines deadband range around nominal voltage where
the AC voltage control is not active.
0.0%/ Real
0.0 … 100.0% Deadband range. 1 = 1%/
10 = 1%
124.26 Deadband gain Defines gain for the user reactive power reference
during deadband operation.
1.0 / Real
1.0 … 100.0 Deadband gain. 1 = 1 /
10 = 1
124.27 AC control base grid
voltage
Defines AC control base value for grid voltage estimate.
The value of this parameter is used to convert voltages
to power unit.
400 V/ Real
100 … 1000 V AC control base value for grid voltage estimate. 1 = 1 V
124.29 Combined operation of
Qref and Q(x) curve
Sets the combined operation mode of Q-ref and Q(x)
curve.
Disabled/ List
Disabled Selected Qref is used 0
Qref until Q(x) activated Qref selection is followed until Q(x) curve is activated 1
Qref while Qref smaller
than Q(x)-ref
Qref is used until it is larger than the reference from the
Q(x) curve
2
124.30 Q(x) curve Selects input signal used in Q(x) regulation curve. Q(U)/ List
Q(U) Input: grid AC voltage
Output: reactive power reference
0
Q(P) Input: actual power
Output: reactive power reference
1
CosPhi(P) Input: actual power
Output: cos phi
2
CosPhi(U) Input: grid AC voltage
Output: cos phi
3
No. Name/Value Description Def/
FbEq16/32