ExcIEEEST1A

IEEE 421.5-2005 type ST1A model. This model represents systems in which excitation power is supplied through a transformer from the generator terminals (or the unit’s auxiliary bus) and is regulated by a controlled rectifier. The maximum exciter voltage available from such systems is directly related to the generator terminal voltage. Reference: IEEE 421.5-2005, 7.1.

Type

Class

URI

cim:ExcIEEEST1A

CIM standard (perspective)

IEC61970 (Grid)

Slots

Associated classes
Figure 1. Associated classes
Name Cardinality Type Description

InstanceSet

1

InstanceSet

Dataset containing the data objects.

SynchronousMachineDynamics

1

SynchronousMachineDynamics

Synchronous machine model with which this excitation system model is associated.

VoltageCompensatorDynamics

1

VoltageCompensatorDynamics

Voltage compensator model associated with this excitation system model.

ilr

0..1

PU

Exciter output current limit reference (ILR). Typical value = 0.

ka

0..1

PU

Voltage regulator gain (KA) (> 0). Typical value = 190.

kc

0..1

PU

Rectifier loading factor proportional to commutating reactance (KC) (>= 0). Typical value = 0,08.

kf

0..1

PU

Excitation control system stabilizer gains (KF) (>= 0). Typical value = 0.

klr

0..1

PU

Exciter output current limiter gain (KLR). Typical value = 0.

pssin

0..1

boolean

Selector of the Power System Stabilizer (PSS) input (PSSin). true = PSS input (Vs) added to error signal false = PSS input (Vs) added to voltage regulator output. Typical value = true.

ta

0..1

Seconds

Voltage regulator time constant (TA) (>= 0). Typical value = 0.

tb

0..1

Seconds

Voltage regulator time constant (TB) (>= 0). Typical value = 10.

tb1

0..1

Seconds

Voltage regulator time constant (TB1) (>= 0). Typical value = 0.

tc

0..1

Seconds

Voltage regulator time constant (TC) (>= 0). Typical value = 1.

tc1

0..1

Seconds

Voltage regulator time constant (TC1) (>= 0). Typical value = 0.

tf

0..1

Seconds

Excitation control system stabilizer time constant (TF) (>= 0). Typical value = 1.

uelin

0..1

ExcIEEEST1AUELselectorKind

Selector of the connection of the UEL input (UELin). Typical value = ignoreUELsignal.

vamax

0..1

PU

Maximum voltage regulator output (VAMAX) (> 0). Typical value = 14,5.

vamin

0..1

PU

Minimum voltage regulator output (VAMIN) (< 0). Typical value = -14,5.

vimax

0..1

PU

Maximum voltage regulator input limit (VIMAX) (> 0). Typical value = 999.

vimin

0..1

PU

Minimum voltage regulator input limit (VIMIN) (< 0). Typical value = -999.

vrmax

0..1

PU

Maximum voltage regulator outputs (VRMAX) (> 0). Typical value = 7,8.

vrmin

0..1

PU

Minimum voltage regulator outputs (VRMIN) (< 0). Typical value = -6,7.

DiscontinuousExcitationControlDynamics

0..1

DiscontinuousExcitationControlDynamics

Discontinuous excitation control model associated with this excitation system model.

OverexcitationLimiterDynamics

0..1

OverexcitationLimiterDynamics

Overexcitation limiter model associated with this excitation system model.

PFVArControllerType1Dynamics

0..1

PFVArControllerType1Dynamics

Power factor or VAr controller type 1 model associated with this excitation system model.

PFVArControllerType2Dynamics

0..1

PFVArControllerType2Dynamics

Power factor or VAr controller type 2 model associated with this excitation system model.

PowerSystemStabilizerDynamics

0..1

PowerSystemStabilizerDynamics

Power system stabilizer model associated with this excitation system model.

PropertiesCIMDataObject

0..1

ChangeSetMember

The single CIM data object in the appropriate dataset context.

UnderexcitationLimiterDynamics

0..1

UnderexcitationLimiterDynamics

Undrexcitation limiter model associated with this excitation system model.

aliasName

0..1

string

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.

description

0..1

string

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.

enabled

0..1

boolean

Function block used indicator. true = use of function block is enabled false = use of function block is disabled.

mRID

0..1

string

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.

name

0..1

string

The name is any free human readable and possibly non unique text naming the object.

DiagramObjects

0..*

DiagramObject

The diagram objects that are associated with the domain object.

Names

0..*

Name

All names of this identified object.

TargetingCIMDataObject

0..*

ChangeSetMember

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.

URI

cim:IdentifiedObject.aliasName

Cardinality

0..1

Type

string

Inherited from

IdentifiedObject

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.

URI

cim:IdentifiedObject.description

Cardinality

0..1

Type

string

Inherited from

IdentifiedObject

DiagramObjects

The diagram objects that are associated with the domain object.

URI

cim:IdentifiedObject.DiagramObjects

Cardinality

0..*

Type

DiagramObject

Inherited from

IdentifiedObject

DiscontinuousExcitationControlDynamics

Discontinuous excitation control model associated with this excitation system model.

URI

cim:ExcitationSystemDynamics.DiscontinuousExcitationControlDynamics

Cardinality

0..1

Type

DiscontinuousExcitationControlDynamics

Inherited from

ExcitationSystemDynamics

enabled

Function block used indicator. true = use of function block is enabled false = use of function block is disabled.

URI

cim:DynamicsFunctionBlock.enabled

Cardinality

0..1

Type

boolean

Inherited from

DynamicsFunctionBlock

ilr

Exciter output current limit reference (ILR). Typical value = 0.

URI

cim:ExcIEEEST1A.ilr

Cardinality

0..1

Type

PU

InstanceSet

Dataset containing the data objects.

URI

cim:IdentifiedObject.InstanceSet

Cardinality

1

Type

InstanceSet

Inherited from

IdentifiedObject

ka

Voltage regulator gain (KA) (> 0). Typical value = 190.

URI

cim:ExcIEEEST1A.ka

Cardinality

0..1

Type

PU

kc

Rectifier loading factor proportional to commutating reactance (KC) (>= 0). Typical value = 0,08.

URI

cim:ExcIEEEST1A.kc

Cardinality

0..1

Type

PU

kf

Excitation control system stabilizer gains (KF) (>= 0). Typical value = 0.

URI

cim:ExcIEEEST1A.kf

Cardinality

0..1

Type

PU

klr

Exciter output current limiter gain (KLR). Typical value = 0.

URI

cim:ExcIEEEST1A.klr

Cardinality

0..1

Type

PU

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

cim:IdentifiedObject.mRID

Cardinality

0..1

Type

string

Inherited from

IdentifiedObject

name

The name is any free human readable and possibly non unique text naming the object.

URI

cim:IdentifiedObject.name

Cardinality

0..1

Type

string

Inherited from

IdentifiedObject

Names

All names of this identified object.

URI

cim:IdentifiedObject.Names

Cardinality

0..*

Type

Name

Inherited from

IdentifiedObject

OverexcitationLimiterDynamics

Overexcitation limiter model associated with this excitation system model.

URI

cim:ExcitationSystemDynamics.OverexcitationLimiterDynamics

Cardinality

0..1

Type

OverexcitationLimiterDynamics

Inherited from

ExcitationSystemDynamics

PFVArControllerType1Dynamics

Power factor or VAr controller type 1 model associated with this excitation system model.

URI

cim:ExcitationSystemDynamics.PFVArControllerType1Dynamics

Cardinality

0..1

Type

PFVArControllerType1Dynamics

Inherited from

ExcitationSystemDynamics

PFVArControllerType2Dynamics

Power factor or VAr controller type 2 model associated with this excitation system model.

URI

cim:ExcitationSystemDynamics.PFVArControllerType2Dynamics

Cardinality

0..1

Type

PFVArControllerType2Dynamics

Inherited from

ExcitationSystemDynamics

PowerSystemStabilizerDynamics

Power system stabilizer model associated with this excitation system model.

URI

cim:ExcitationSystemDynamics.PowerSystemStabilizerDynamics

Cardinality

0..1

Type

PowerSystemStabilizerDynamics

Inherited from

ExcitationSystemDynamics

PropertiesCIMDataObject

The single CIM data object in the appropriate dataset context.

URI

cim:IdentifiedObject.PropertiesCIMDataObject

Cardinality

0..1

Type

ChangeSetMember

Inherited from

IdentifiedObject

pssin

Selector of the Power System Stabilizer (PSS) input (PSSin). true = PSS input (Vs) added to error signal false = PSS input (Vs) added to voltage regulator output. Typical value = true.

URI

cim:ExcIEEEST1A.pssin

Cardinality

0..1

Type

boolean

SynchronousMachineDynamics

Synchronous machine model with which this excitation system model is associated.

URI

cim:ExcitationSystemDynamics.SynchronousMachineDynamics

Cardinality

1

Type

SynchronousMachineDynamics

Inherited from

ExcitationSystemDynamics

ta

Voltage regulator time constant (TA) (>= 0). Typical value = 0.

URI

cim:ExcIEEEST1A.ta

Cardinality

0..1

Type

Seconds

TargetingCIMDataObject

Data objects registered.

URI

cim:IdentifiedObject.TargetingCIMDataObject

Cardinality

0..*

Type

ChangeSetMember

Inherited from

IdentifiedObject

tb

Voltage regulator time constant (TB) (>= 0). Typical value = 10.

URI

cim:ExcIEEEST1A.tb

Cardinality

0..1

Type

Seconds

tb1

Voltage regulator time constant (TB1) (>= 0). Typical value = 0.

URI

cim:ExcIEEEST1A.tb1

Cardinality

0..1

Type

Seconds

tc

Voltage regulator time constant (TC) (>= 0). Typical value = 1.

URI

cim:ExcIEEEST1A.tc

Cardinality

0..1

Type

Seconds

tc1

Voltage regulator time constant (TC1) (>= 0). Typical value = 0.

URI

cim:ExcIEEEST1A.tc1

Cardinality

0..1

Type

Seconds

tf

Excitation control system stabilizer time constant (TF) (>= 0). Typical value = 1.

URI

cim:ExcIEEEST1A.tf

Cardinality

0..1

Type

Seconds

uelin

Selector of the connection of the UEL input (UELin). Typical value = ignoreUELsignal.

URI

cim:ExcIEEEST1A.uelin

Cardinality

0..1

Type

ExcIEEEST1AUELselectorKind

UnderexcitationLimiterDynamics

Undrexcitation limiter model associated with this excitation system model.

URI

cim:ExcitationSystemDynamics.UnderexcitationLimiterDynamics

Cardinality

0..1

Type

UnderexcitationLimiterDynamics

Inherited from

ExcitationSystemDynamics

vamax

Maximum voltage regulator output (VAMAX) (> 0). Typical value = 14,5.

URI

cim:ExcIEEEST1A.vamax

Cardinality

0..1

Type

PU

vamin

Minimum voltage regulator output (VAMIN) (< 0). Typical value = -14,5.

URI

cim:ExcIEEEST1A.vamin

Cardinality

0..1

Type

PU

vimax

Maximum voltage regulator input limit (VIMAX) (> 0). Typical value = 999.

URI

cim:ExcIEEEST1A.vimax

Cardinality

0..1

Type

PU

vimin

Minimum voltage regulator input limit (VIMIN) (< 0). Typical value = -999.

URI

cim:ExcIEEEST1A.vimin

Cardinality

0..1

Type

PU

VoltageCompensatorDynamics

Voltage compensator model associated with this excitation system model.

URI

cim:ExcitationSystemDynamics.VoltageCompensatorDynamics

Cardinality

1

Type

VoltageCompensatorDynamics

Inherited from

ExcitationSystemDynamics

vrmax

Maximum voltage regulator outputs (VRMAX) (> 0). Typical value = 7,8.

URI

cim:ExcIEEEST1A.vrmax

Cardinality

0..1

Type

PU

vrmin

Minimum voltage regulator outputs (VRMIN) (< 0). Typical value = -6,7.

URI

cim:ExcIEEEST1A.vrmin

Cardinality

0..1

Type

PU