ExcIEEEAC8B
IEEE 421.5-2005 type AC8B model. This model represents a PID voltage regulator with either a brushless exciter or DC exciter. The AVR in this model consists of PID control, with separate constants for the proportional (KPR), integral (KIR), and derivative (KDR) gains. The representation of the brushless exciter (TE, KE, SE, KC, KD) is similar to the model type AC2A. The type AC8B model can be used to represent static voltage regulators applied to brushless excitation systems. Digitally based voltage regulators feeding DC rotating main exciters can be represented with the AC type AC8B model with the parameters KC and KD set to 0. For thyristor power stages fed from the generator terminals, the limits VRMAX and VRMIN should be a function of terminal voltage: VT x VRMAX and VT x VRMIN. Reference: IEEE 421.5-2005, 6.8.
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CIM standard (perspective) |
IEC61970 (Grid) |
Slots
| Name | Cardinality | Type | Description |
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1 |
Dataset containing the data objects. |
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1 |
Synchronous machine model with which this excitation system model is associated. |
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1 |
Voltage compensator model associated with this excitation system model. |
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0..1 |
Voltage regulator gain (KA) (> 0). Typical value = 1. |
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0..1 |
Rectifier loading factor proportional to commutating reactance (KC) (>= 0). Typical value = 0,55. |
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0..1 |
Demagnetizing factor, a function of exciter alternator reactances (KD) (>= 0). Typical value = 1,1. |
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0..1 |
Voltage regulator derivative gain (KDR) (>= 0). Typical value = 10. |
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0..1 |
Exciter constant related to self-excited field (KE). Typical value = 1. |
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0..1 |
Voltage regulator integral gain (KIR) (>= 0). Typical value = 5. |
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0..1 |
Voltage regulator proportional gain (KPR) (> 0 if ExcIEEEAC8B.kir = 0). Typical value = 80. |
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0..1 |
Exciter saturation function value at the corresponding exciter voltage, VE1, back of commutating reactance (SE[VE1]) (>= 0). Typical value = 0,3. |
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0..1 |
Exciter saturation function value at the corresponding exciter voltage, VE2, back of commutating reactance (SE[VE2]) (>= 0). Typical value = 3. |
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0..1 |
Voltage regulator time constant (TA) (>= 0). Typical value = 0. |
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0..1 |
Lag time constant (TDR) (> 0). Typical value = 0,1. |
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0..1 |
Exciter time constant, integration rate associated with exciter control (TE) (> 0). Typical value = 1,2. |
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0..1 |
Exciter alternator output voltages back of commutating reactance at which saturation is defined (VE1) (> 0). Typical value = 6,5. |
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0..1 |
Exciter alternator output voltages back of commutating reactance at which saturation is defined (VE2) (> 0). Typical value = 9. |
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0..1 |
Minimum exciter voltage output (VEMIN) (<= 0). Typical value = 0. |
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0..1 |
Exciter field current limit reference (VFEMAX). Typical value = 6. |
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0..1 |
Maximum voltage regulator output (VRMAX) (> 0). Typical value = 35. |
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0..1 |
Minimum voltage regulator output (VRMIN) (<= 0). Typical value = 0. |
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0..1 |
Discontinuous excitation control model associated with this excitation system model. |
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0..1 |
Overexcitation limiter model associated with this excitation system model. |
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0..1 |
Power factor or VAr controller type 1 model associated with this excitation system model. |
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0..1 |
Power factor or VAr controller type 2 model associated with this excitation system model. |
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0..1 |
Power system stabilizer model associated with this excitation system model. |
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0..1 |
The single CIM data object in the appropriate dataset context. |
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0..1 |
Undrexcitation limiter model associated with this excitation system model. |
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0..1 |
The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy. The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time. |
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0..1 |
The description is a free human readable text describing or naming the object. It may be non unique and may not correlate to a naming hierarchy. |
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0..1 |
Function block used indicator. true = use of function block is enabled false = use of function block is disabled. |
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0..1 |
Master resource identifier issued by a model authority. The mRID is unique within an exchange context. Global uniqueness is easily achieved by using a UUID, as specified in RFC 4122, for the mRID. The use of UUID is strongly recommended. For CIMXML data files in RDF syntax conforming to IEC 61970-552, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements. |
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0..1 |
The name is any free human readable and possibly non unique text naming the object. |
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0..* |
The diagram objects that are associated with the domain object. |
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0..* |
All names of this identified object. |
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0..* |
Data objects registered. |
aliasName
The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy. The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time.
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description
The description is a free human readable text describing or naming the object. It may be non unique and may not correlate to a naming hierarchy.
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Cardinality |
0..1 |
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Inherited from |
DiagramObjects
The diagram objects that are associated with the domain object.
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Cardinality |
0..* |
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Inherited from |
DiscontinuousExcitationControlDynamics
Discontinuous excitation control model associated with this excitation system model.
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Cardinality |
0..1 |
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Inherited from |
enabled
Function block used indicator. true = use of function block is enabled false = use of function block is disabled.
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Cardinality |
0..1 |
Type |
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Inherited from |
InstanceSet
Dataset containing the data objects.
URI |
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Cardinality |
1 |
Type |
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Inherited from |
ka
Voltage regulator gain (KA) (> 0). Typical value = 1.
URI |
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Cardinality |
0..1 |
Type |
kc
Rectifier loading factor proportional to commutating reactance (KC) (>= 0). Typical value = 0,55.
URI |
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Cardinality |
0..1 |
Type |
kd
Demagnetizing factor, a function of exciter alternator reactances (KD) (>= 0). Typical value = 1,1.
URI |
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Cardinality |
0..1 |
Type |
kdr
Voltage regulator derivative gain (KDR) (>= 0). Typical value = 10.
URI |
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Cardinality |
0..1 |
Type |
ke
Exciter constant related to self-excited field (KE). Typical value = 1.
URI |
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Cardinality |
0..1 |
Type |
kir
Voltage regulator integral gain (KIR) (>= 0). Typical value = 5.
URI |
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Cardinality |
0..1 |
Type |
kpr
Voltage regulator proportional gain (KPR) (> 0 if ExcIEEEAC8B.kir = 0). Typical value = 80.
URI |
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Cardinality |
0..1 |
Type |
mRID
Master resource identifier issued by a model authority. The mRID is unique within an exchange context. Global uniqueness is easily achieved by using a UUID, as specified in RFC 4122, for the mRID. The use of UUID is strongly recommended. For CIMXML data files in RDF syntax conforming to IEC 61970-552, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
name
The name is any free human readable and possibly non unique text naming the object.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
Names
All names of this identified object.
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Cardinality |
0..* |
Type |
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Inherited from |
OverexcitationLimiterDynamics
Overexcitation limiter model associated with this excitation system model.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
PFVArControllerType1Dynamics
Power factor or VAr controller type 1 model associated with this excitation system model.
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Cardinality |
0..1 |
Type |
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Inherited from |
PFVArControllerType2Dynamics
Power factor or VAr controller type 2 model associated with this excitation system model.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
PowerSystemStabilizerDynamics
Power system stabilizer model associated with this excitation system model.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
PropertiesCIMDataObject
The single CIM data object in the appropriate dataset context.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
seve1
Exciter saturation function value at the corresponding exciter voltage, VE1, back of commutating reactance (SE[VE1]) (>= 0). Typical value = 0,3.
URI |
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|---|---|
Cardinality |
0..1 |
Type |
seve2
Exciter saturation function value at the corresponding exciter voltage, VE2, back of commutating reactance (SE[VE2]) (>= 0). Typical value = 3.
URI |
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Cardinality |
0..1 |
Type |
SynchronousMachineDynamics
Synchronous machine model with which this excitation system model is associated.
URI |
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Cardinality |
1 |
Type |
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Inherited from |
ta
Voltage regulator time constant (TA) (>= 0). Typical value = 0.
URI |
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Cardinality |
0..1 |
Type |
TargetingCIMDataObject
Data objects registered.
URI |
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Cardinality |
0..* |
Type |
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Inherited from |
tdr
Lag time constant (TDR) (> 0). Typical value = 0,1.
URI |
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Cardinality |
0..1 |
Type |
te
Exciter time constant, integration rate associated with exciter control (TE) (> 0). Typical value = 1,2.
URI |
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Cardinality |
0..1 |
Type |
UnderexcitationLimiterDynamics
Undrexcitation limiter model associated with this excitation system model.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
ve1
Exciter alternator output voltages back of commutating reactance at which saturation is defined (VE1) (> 0). Typical value = 6,5.
URI |
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|---|---|
Cardinality |
0..1 |
Type |
ve2
Exciter alternator output voltages back of commutating reactance at which saturation is defined (VE2) (> 0). Typical value = 9.
URI |
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Cardinality |
0..1 |
Type |
vemin
Minimum exciter voltage output (VEMIN) (<= 0). Typical value = 0.
URI |
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Cardinality |
0..1 |
Type |
vfemax
Exciter field current limit reference (VFEMAX). Typical value = 6.
URI |
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Cardinality |
0..1 |
Type |
VoltageCompensatorDynamics
Voltage compensator model associated with this excitation system model.
URI |
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Cardinality |
1 |
Type |
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Inherited from |
vrmax
Maximum voltage regulator output (VRMAX) (> 0). Typical value = 35.
URI |
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Cardinality |
0..1 |
Type |