ExcSK

Class Description

Slovakian excitation system. UEL and secondary voltage control are included in this model. When this model is used, there cannot be a separate underexcitation limiter or VAr controller model.

Attributes

Name Type Description
efdmax PU Field voltage clipping upper level limit (Efdmax) (> ExcSK.efdmin).
efdmin PU Field voltage clipping lower level limit (Efdmin) (< ExcSK.efdmax).
emax PU Maximum field voltage output (Emax) (> ExcSK.emin). Typical value = 20.
emin PU Minimum field voltage output (Emin) (< ExcSK.emax). Typical value = -20.
k PU Gain (K). Typical value = 1.
k1 PU Parameter of underexcitation limit (K1). Typical value = 0,1364.
k2 PU Parameter of underexcitation limit (K2). Typical value = -0,3861.
kc PU PI controller gain (Kc). Typical value = 70.
kce PU Rectifier regulation factor (Kce). Typical value = 0.
kd PU Exciter internal reactance (Kd). Typical value = 0.
kgob PU P controller gain (Kgob). Typical value = 10.
kp PU PI controller gain (Kp). Typical value = 1.
kqi PU PI controller gain of integral component (Kqi). Typical value = 0.
kqob PU Rate of rise of the reactive power (Kqob).
kqp PU PI controller gain (Kqp). Typical value = 0.
nq PU Deadband of reactive power (nq). Determines the range of sensitivity. Typical value = 0,001.
qconoff Boolean Secondary voltage control state (Qc_on_off).
true = secondary voltage control is on
false = secondary voltage control is off.
Typical value = false.
qz PU Desired value (setpoint) of reactive power, manual setting (Qz).
remote Boolean Selector to apply automatic calculation in secondary controller model (remote).
true = automatic calculation is activated
false = manual set is active; the use of desired value of reactive power (Qz) is required.
Typical value = true.
sbase ApparentPower Apparent power of the unit (Sbase) (> 0). Unit = MVA. Typical value = 259.
tc Seconds PI controller phase lead time constant (Tc) (>= 0). Typical value = 8.
te Seconds Time constant of gain block (Te) (>= 0). Typical value = 0,1.
ti Seconds PI controller phase lead time constant (Ti) (>= 0). Typical value = 2.
tp Seconds Time constant (Tp) (>= 0). Typical value = 0,1.
tr Seconds Voltage transducer time constant (Tr) (>= 0). Typical value = 0,01.
uimax PU Maximum error (UImax) (> ExcSK.uimin). Typical value = 10.
uimin PU Minimum error (UImin) (< ExcSK.uimax). Typical value = -10.
urmax PU Maximum controller output (URmax) (> ExcSK.urmin). Typical value = 10.
urmin PU Minimum controller output (URmin) (< ExcSK.urmax). Typical value = -10.
vtmax PU Maximum terminal voltage input (Vtmax) (> ExcSK.vtmin). Determines the range of voltage deadband. Typical value = 1,05.
vtmin PU Minimum terminal voltage input (Vtmin) (< ExcSK.vtmax). Determines the range of voltage deadband. Typical value = 0,95.
yp PU Maximum output (Yp). Typical value = 1.

Relationships

Inherits from

Descendant classes

  • No descendant classes

Leaf/Root class

IsLeaf IsRoot
False False

Associations

None