Figure 1: Simple Exciter Model Block Diagram
Parameter |
Units |
Description |
---|---|---|
TA |
Seconds |
AVR Lead Time Constant |
TB |
Seconds |
AVR Lag Time Constant |
TE |
Seconds |
Exciter Time Constant |
K |
pu |
Exciter Gain |
EMin |
pu |
Exciter Min Limit |
EMax |
pu |
Exciter Max Limit |
Figure 2: IEEE Type 1 Model Block Diagram
Parameter |
Units |
Description |
---|---|---|
TR |
Seconds |
Transducer time constant |
TA |
Seconds |
AVR time constant |
TE |
Seconds |
Exciter time constant |
TF |
Seconds |
Field voltage feedback time constant |
KA |
pu |
AVR gain |
KE |
pu |
Exciter KE |
KF |
pu |
Field voltage feedback gain |
VR Max |
pu |
AVR limit max |
VR Min |
pu |
AVR limit min |
E1 |
pu |
Saturation voltage point 1 |
E2 |
pu |
Saturation voltage point 2 |
S( E1 ) |
pu |
Saturation at E1 |
S( E2 ) |
pu |
Saturation at E2 |
Figure 3: IEEE Type 2 Model Block Diagram
Parameter |
Units |
Description |
---|---|---|
TR |
Seconds |
Transducer time constant |
TA |
Seconds |
AVR time constant |
TE |
Seconds |
Exciter time constant |
TF1 |
Seconds |
Field voltage feedback time constant 1 |
TF2 |
Seconds |
Field voltage feedback time constant 2 |
KA |
pu |
AVR gain |
KE |
pu |
Exciter KE |
KF |
pu |
Field voltage feedback gain |
VR Max |
pu |
AVR limit max |
VR Min |
pu |
AVR limit min |
E1 |
pu |
Saturation voltage point 1 |
E2 |
pu |
Saturation voltage point 2 |
S( E1 ) |
pu |
Saturation at E1 |
S( E2 ) |
pu |
Saturation at E2 |
Figure 4: IEEE Type AC1A Model Block Diagram
Parameter |
Units |
Description |
---|---|---|
TR |
Seconds |
Sensor time constant |
TA |
Seconds |
Main AVR time constant |
TB |
Seconds |
Second block AVR lag time constant |
TC |
Seconds |
Second block AVR lead time constant |
TE |
Seconds |
Exciter time constant |
TF |
Seconds |
Feedback lag time constant |
KA |
pu |
First block main AVR gain |
KC |
pu |
Exciter KC – Field current feedback |
KD |
pu |
Exciter KD – Field current feedback |
KE |
pu |
Exciter KE |
KF |
pu |
Feedback gain |
VAMax |
pu |
AVR control max |
VAMin |
pu |
AVR control min |
VRMax |
pu |
Regulator max - Amplifier |
VRMin |
pu |
Regulator min - Amplifier |
E1 |
pu |
Saturation voltage point 1 |
E2 |
pu |
Saturation voltage point 2 |
S(E1) |
pu |
Saturation at E1 |
S(E2) |
pu |
Saturation at E2 |
VUEL |
pu |
Fixed Under Excitation Limit |
VOEL |
pu |
Fixed Over Excitation Limit |
Figure 5: IEEE Type AC6A Model Block Diagram
Parameter |
Units |
Description |
---|---|---|
TR |
Seconds |
Sensor time constant |
TK |
Seconds |
First block lead time constant |
TA |
Seconds |
First block lag time constant |
TB |
Seconds |
Second block lag time constant |
TC |
Seconds |
Second block lead time constant |
TE |
Seconds |
Exciter time constant |
TJ |
Seconds |
Feedback lead time constant |
TH |
Seconds |
Feedback lag time constant |
KA |
pu |
First block gain |
KC |
pu |
Exciter KC – Field current feedback |
KD |
pu |
Exciter KD – Field current feedback |
KE |
pu |
Exciter KE |
KH |
pu |
Feedback gain |
VFELim |
pu |
VFE limit value |
VHMax |
pu |
Feedback max |
VAMax |
pu |
AVR control max |
VAMin |
pu |
AVR control min |
VRMax |
pu |
Regulator max - Amplifier |
VRMin |
pu |
Regulator min - Amplifier |
E1 |
pu |
Saturation voltage point 1 |
E2 |
pu |
Saturation voltage point 2 |
S(E1) |
pu |
Saturation at E1 |
S(E2) |
pu |
Saturation at E2 |
Figure 6: IEEE Type AC8B Model Block Diagram
Parameter |
Units |
Description |
---|---|---|
TR |
Seconds |
Transducer time constant |
TA |
Seconds |
Main AVR time constant |
TE |
Seconds |
Exciter time constant |
TDR |
Seconds |
Differential time constant for PID control |
KPR |
pu |
Proportional gain for PID control |
KIR |
pu |
Integral gain for PID control |
KDR |
pu |
Differential gain for PID control |
KA |
pu |
Main AVR time constant |
KC |
pu |
Exciter KC – Field current feedback |
KD |
pu |
Exciter KD – Field current feedback |
KE |
pu |
Exciter KE |
VR Max |
pu |
Regulator max - Amplifier |
VR Min |
pu |
Regulator min - Amplifier |
VE Max |
pu |
Exciter max |
VE Min |
pu |
Exciter min |
E1 |
pu |
Saturation voltage point 1 |
E2 |
pu |
Saturation voltage point 2 |
S(E1) |
pu |
Saturation at E1 |
S(E2) |
pu |
Saturation at E2 |
Dynamic Stability | |
Stability Data Parameters |