ExcAC8B

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.

inlim

0..1

boolean

Input limiter indicator. true = input limiter Vimax and Vimin is considered false = input limiter Vimax and Vimin is not considered. Typical value = true.

ka

0..1

PU

Voltage regulator gain (Ka) (> 0). Typical value = 1.

kc

0..1

PU

Rectifier loading factor proportional to commutating reactance (Kc) (>= 0). Typical value = 0,55.

kd

0..1

PU

Demagnetizing factor, a function of exciter alternator reactances (Kd) (>= 0). Typical value = 1,1.

kdr

0..1

PU

Voltage regulator derivative gain (Kdr) (>= 0). Typical value = 10.

ke

0..1

PU

Exciter constant related to self-excited field (Ke). Typical value = 1.

kir

0..1

PU

Voltage regulator integral gain (Kir) (>= 0). Typical value = 5.

kpr

0..1

PU

Voltage regulator proportional gain (Kpr) (> 0 if ExcAC8B.kir = 0). Typical value = 80.

ks

0..1

PU

Coefficient to allow different usage of the model-speed coefficient (Ks). Typical value = 0.

pidlim

0..1

boolean

PID limiter indicator. true = input limiter Vpidmax and Vpidmin is considered false = input limiter Vpidmax and Vpidmin is not considered. Typical value = true.

seve1

0..1

float

Exciter saturation function value at the corresponding exciter voltage, Ve₁, back of commutating reactance (Se[Ve₁]) (>= 0). Typical value = 0,3.

seve2

0..1

float

Exciter saturation function value at the corresponding exciter voltage, Ve₂, back of commutating reactance (Se[Ve₂]) (>= 0). Typical value = 3.

ta

0..1

Seconds

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

tdr

0..1

Seconds

Lag time constant (Tdr) (> 0 if ExcAC8B.kdr > 0). Typical value = 0,1.

te

0..1

Seconds

Exciter time constant, integration rate associated with exciter control (Te) (> 0). Typical value = 1,2.

telim

0..1

boolean

Selector for the limiter on the block (1/sTe). See diagram for meaning of true and false. Typical value = false.

ve1

0..1

PU

Exciter alternator output voltages back of commutating reactance at which saturation is defined (Ve₁) (> 0). Typical value = 6,5.

ve2

0..1

PU

Exciter alternator output voltages back of commutating reactance at which saturation is defined (Ve₂) (> 0). Typical value = 9.

vemin

0..1

PU

Minimum exciter voltage output (Vemin) (<= 0). Typical value = 0.

vfemax

0..1

PU

Exciter field current limit reference (Vfemax). Typical value = 6.

vimax

0..1

PU

Input signal maximum (Vimax) (> ExcAC8B.vimin). Typical value = 35.

vimin

0..1

PU

Input signal minimum (Vimin) (< ExcAC8B.vimax). Typical value = -10.

vpidmax

0..1

PU

PID maximum controller output (Vpidmax) (> ExcAC8B.vpidmin). Typical value = 35.

vpidmin

0..1

PU

PID minimum controller output (Vpidmin) (< ExcAC8B.vpidmax). Typical value = -10.

vrmax

0..1

PU

Maximum voltage regulator output (Vrmax) (> 0). Typical value = 35.

vrmin

0..1

PU

Minimum voltage regulator output (Vrmin) (< 0). Typical value = 0.

vtmult

0..1

boolean

Multiply by generator's terminal voltage indicator. true =the limits Vrmax and Vrmin are multiplied by the generator’s terminal voltage to represent a thyristor power stage fed from the generator terminals false = limits are not multiplied by generator's terminal voltage. Typical value = false.

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.