ExcIEEEDC3A

IEEE 421.5-2005 type DC3A model. This model represents older systems, in particular those DC commutator exciters with non-continuously acting regulators that were commonly used before the development of the continuously acting varieties. These systems respond at basically two different rates, depending upon the magnitude of voltage error. For small errors, adjustment is made periodically with a signal to a motor-operated rheostat. Larger errors cause resistors to be quickly shorted or inserted and a strong forcing signal applied to the exciter. Continuous motion of the motor-operated rheostat occurs for these larger error signals, even though it is bypassed by contactor action.

Reference: IEEE 421.5-2005, 5.3.

URI: cim:ExcIEEEDC3A
Type: Class

 classDiagram
    class ExcIEEEDC3A
    click ExcIEEEDC3A href "../ExcIEEEDC3A"
      ExcitationSystemDynamics <|-- ExcIEEEDC3A
        click ExcitationSystemDynamics href "../ExcitationSystemDynamics"

      ExcIEEEDC3A : IdentifiedObject.description

      ExcIEEEDC3A : ExcitationSystemDynamics.DiscontinuousExcitationControlDynamics

          ExcIEEEDC3A --> DiscontinuousExcitationControlDynamics : ExcitationSystemDynamics.DiscontinuousExcitationControlDynamics
          click DiscontinuousExcitationControlDynamics href "../DiscontinuousExcitationControlDynamics"

      ExcIEEEDC3A : ExcIEEEDC3A.efd1

          ExcIEEEDC3A --> PU : ExcIEEEDC3A.efd1
          click PU href "../PU"

      ExcIEEEDC3A : ExcIEEEDC3A.efd2

          ExcIEEEDC3A --> PU : ExcIEEEDC3A.efd2
          click PU href "../PU"

      ExcIEEEDC3A : DynamicsFunctionBlock.enabled

      ExcIEEEDC3A : ExcIEEEDC3A.exclim

      ExcIEEEDC3A : ExcIEEEDC3A.ke

          ExcIEEEDC3A --> PU : ExcIEEEDC3A.ke
          click PU href "../PU"

      ExcIEEEDC3A : ExcIEEEDC3A.kv

          ExcIEEEDC3A --> PU : ExcIEEEDC3A.kv
          click PU href "../PU"

      ExcIEEEDC3A : IdentifiedObject.mRID

      ExcIEEEDC3A : IdentifiedObject.name

      ExcIEEEDC3A : ExcitationSystemDynamics.OverexcitationLimiterDynamics

          ExcIEEEDC3A --> OverexcitationLimiterDynamics : ExcitationSystemDynamics.OverexcitationLimiterDynamics
          click OverexcitationLimiterDynamics href "../OverexcitationLimiterDynamics"

      ExcIEEEDC3A : ExcitationSystemDynamics.PFVArControllerType1Dynamics

          ExcIEEEDC3A --> PFVArControllerType1Dynamics : ExcitationSystemDynamics.PFVArControllerType1Dynamics
          click PFVArControllerType1Dynamics href "../PFVArControllerType1Dynamics"

      ExcIEEEDC3A : ExcitationSystemDynamics.PFVArControllerType2Dynamics

          ExcIEEEDC3A --> PFVArControllerType2Dynamics : ExcitationSystemDynamics.PFVArControllerType2Dynamics
          click PFVArControllerType2Dynamics href "../PFVArControllerType2Dynamics"

      ExcIEEEDC3A : ExcitationSystemDynamics.PowerSystemStabilizerDynamics

          ExcIEEEDC3A --> PowerSystemStabilizerDynamics : ExcitationSystemDynamics.PowerSystemStabilizerDynamics
          click PowerSystemStabilizerDynamics href "../PowerSystemStabilizerDynamics"

      ExcIEEEDC3A : ExcIEEEDC3A.seefd1

      ExcIEEEDC3A : ExcIEEEDC3A.seefd2

      ExcIEEEDC3A : ExcitationSystemDynamics.SynchronousMachineDynamics

          ExcIEEEDC3A --> SynchronousMachineDynamics : ExcitationSystemDynamics.SynchronousMachineDynamics
          click SynchronousMachineDynamics href "../SynchronousMachineDynamics"

      ExcIEEEDC3A : ExcIEEEDC3A.te

          ExcIEEEDC3A --> Seconds : ExcIEEEDC3A.te
          click Seconds href "../Seconds"

      ExcIEEEDC3A : ExcIEEEDC3A.trh

          ExcIEEEDC3A --> Seconds : ExcIEEEDC3A.trh
          click Seconds href "../Seconds"

      ExcIEEEDC3A : ExcitationSystemDynamics.UnderexcitationLimiterDynamics

          ExcIEEEDC3A --> UnderexcitationLimiterDynamics : ExcitationSystemDynamics.UnderexcitationLimiterDynamics
          click UnderexcitationLimiterDynamics href "../UnderexcitationLimiterDynamics"

      ExcIEEEDC3A : ExcitationSystemDynamics.VoltageCompensatorDynamics

          ExcIEEEDC3A --> VoltageCompensatorDynamics : ExcitationSystemDynamics.VoltageCompensatorDynamics
          click VoltageCompensatorDynamics href "../VoltageCompensatorDynamics"

      ExcIEEEDC3A : ExcIEEEDC3A.vrmax

          ExcIEEEDC3A --> PU : ExcIEEEDC3A.vrmax
          click PU href "../PU"

      ExcIEEEDC3A : ExcIEEEDC3A.vrmin

          ExcIEEEDC3A --> PU : ExcIEEEDC3A.vrmin
          click PU href "../PU"

Inheritance

• IdentifiedObject
  • DynamicsFunctionBlock
    • ExcitationSystemDynamics
      • ExcIEEEDC3A

Attributes

Name	URI	Cardinality and Range	Description	Inheritance
trh	cim:ExcIEEEDC3A.trh	1 Seconds	Rheostat travel time (TRH) (> 0)	direct
kv	cim:ExcIEEEDC3A.kv	1 PU	Fast raise/lower contact setting (KV) (> 0)	direct
vrmax	cim:ExcIEEEDC3A.vrmax	1 PU	Maximum voltage regulator output (VRMAX) (> 0)	direct
vrmin	cim:ExcIEEEDC3A.vrmin	1 PU	Minimum voltage regulator output (VRMIN) (<= 0)	direct
te	cim:ExcIEEEDC3A.te	1 Seconds	Exciter time constant, integration rate associated with exciter control (T...	direct
ke	cim:ExcIEEEDC3A.ke	1 PU	Exciter constant related to self-excited field (KE)	direct
efd1	cim:ExcIEEEDC3A.efd1	1 PU	Exciter voltage at which exciter saturation is defined (EFD1</...	direct
seefd1	cim:ExcIEEEDC3A.seefd1	1 float	Exciter saturation function value at the corresponding exciter voltage, E<...	direct
efd2	cim:ExcIEEEDC3A.efd2	1 PU	Exciter voltage at which exciter saturation is defined (EFD2</...	direct
seefd2	cim:ExcIEEEDC3A.seefd2	1 float	Exciter saturation function value at the corresponding exciter voltage, E<...	direct
exclim	cim:ExcIEEEDC3A.exclim	1 boolean	(exclim)	direct
SynchronousMachineDynamics	cim:ExcitationSystemDynamics.SynchronousMachineDynamics	1 SynchronousMachineDynamics	Synchronous machine model with which this excitation system model is associat...	ExcitationSystemDynamics
VoltageCompensatorDynamics	cim:ExcitationSystemDynamics.VoltageCompensatorDynamics	1 VoltageCompensatorDynamics	Voltage compensator model associated with this excitation system model	ExcitationSystemDynamics
OverexcitationLimiterDynamics	cim:ExcitationSystemDynamics.OverexcitationLimiterDynamics	0..1 OverexcitationLimiterDynamics	Overexcitation limiter model associated with this excitation system model	ExcitationSystemDynamics
PFVArControllerType2Dynamics	cim:ExcitationSystemDynamics.PFVArControllerType2Dynamics	0..1 PFVArControllerType2Dynamics	Power factor or VAr controller type 2 model associated with this excitation s...	ExcitationSystemDynamics
DiscontinuousExcitationControlDynamics	cim:ExcitationSystemDynamics.DiscontinuousExcitationControlDynamics	0..1 DiscontinuousExcitationControlDynamics	Discontinuous excitation control model associated with this excitation system...	ExcitationSystemDynamics
PowerSystemStabilizerDynamics	cim:ExcitationSystemDynamics.PowerSystemStabilizerDynamics	0..1 PowerSystemStabilizerDynamics	Power system stabilizer model associated with this excitation system model	ExcitationSystemDynamics
UnderexcitationLimiterDynamics	cim:ExcitationSystemDynamics.UnderexcitationLimiterDynamics	0..1 UnderexcitationLimiterDynamics	Undrexcitation limiter model associated with this excitation system model	ExcitationSystemDynamics
PFVArControllerType1Dynamics	cim:ExcitationSystemDynamics.PFVArControllerType1Dynamics	0..1 PFVArControllerType1Dynamics	Power factor or VAr controller type 1 model associated with this excitation s...	ExcitationSystemDynamics
enabled	cim:DynamicsFunctionBlock.enabled	1 boolean	Function block used indicator	DynamicsFunctionBlock
description	cim:IdentifiedObject.description	0..1 string	The description is a free human readable text describing or naming the object	IdentifiedObject
mRID	cim:IdentifiedObject.mRID	1 string	Master resource identifier issued by a model authority	IdentifiedObject
name	cim:IdentifiedObject.name	0..1 string	The name is any free human readable and possibly non unique text naming the o...	IdentifiedObject

Identifier and Mapping Information

Schema Source

• from schema: http://iec.ch/TC57/ns/CIM/Dynamics-EU#Package_DynamicsProfile

Mappings

Mapping Type	Mapped Value
self	cim:ExcIEEEDC3A
native	this:ExcIEEEDC3A