ExcIEEEAC4A

IEEE 421.5-2005 type AC4A model. The model represents type AC4A alternator-supplied controlled-rectifier excitation system which is quite different from the other types of AC systems. This high initial response excitation system utilizes a full thyristor bridge in the exciter output circuit. The voltage regulator controls the firing of the thyristor bridges. The exciter alternator uses an independent voltage regulator to control its output voltage to a constant value. These effects are not modelled; however, transient loading effects on the exciter alternator are included.

Reference: IEEE 421.5-2005, 6.4.

URI: cim:ExcIEEEAC4A
Type: Class

 classDiagram
    class ExcIEEEAC4A
    click ExcIEEEAC4A href "../ExcIEEEAC4A"
      ExcitationSystemDynamics <|-- ExcIEEEAC4A
        click ExcitationSystemDynamics href "../ExcitationSystemDynamics"

      ExcIEEEAC4A : IdentifiedObject.description

      ExcIEEEAC4A : ExcitationSystemDynamics.DiscontinuousExcitationControlDynamics

          ExcIEEEAC4A --> DiscontinuousExcitationControlDynamics : ExcitationSystemDynamics.DiscontinuousExcitationControlDynamics
          click DiscontinuousExcitationControlDynamics href "../DiscontinuousExcitationControlDynamics"

      ExcIEEEAC4A : DynamicsFunctionBlock.enabled

      ExcIEEEAC4A : ExcIEEEAC4A.ka

          ExcIEEEAC4A --> PU : ExcIEEEAC4A.ka
          click PU href "../PU"

      ExcIEEEAC4A : ExcIEEEAC4A.kc

          ExcIEEEAC4A --> PU : ExcIEEEAC4A.kc
          click PU href "../PU"

      ExcIEEEAC4A : IdentifiedObject.mRID

      ExcIEEEAC4A : IdentifiedObject.name

      ExcIEEEAC4A : ExcitationSystemDynamics.OverexcitationLimiterDynamics

          ExcIEEEAC4A --> OverexcitationLimiterDynamics : ExcitationSystemDynamics.OverexcitationLimiterDynamics
          click OverexcitationLimiterDynamics href "../OverexcitationLimiterDynamics"

      ExcIEEEAC4A : ExcitationSystemDynamics.PFVArControllerType1Dynamics

          ExcIEEEAC4A --> PFVArControllerType1Dynamics : ExcitationSystemDynamics.PFVArControllerType1Dynamics
          click PFVArControllerType1Dynamics href "../PFVArControllerType1Dynamics"

      ExcIEEEAC4A : ExcitationSystemDynamics.PFVArControllerType2Dynamics

          ExcIEEEAC4A --> PFVArControllerType2Dynamics : ExcitationSystemDynamics.PFVArControllerType2Dynamics
          click PFVArControllerType2Dynamics href "../PFVArControllerType2Dynamics"

      ExcIEEEAC4A : ExcitationSystemDynamics.PowerSystemStabilizerDynamics

          ExcIEEEAC4A --> PowerSystemStabilizerDynamics : ExcitationSystemDynamics.PowerSystemStabilizerDynamics
          click PowerSystemStabilizerDynamics href "../PowerSystemStabilizerDynamics"

      ExcIEEEAC4A : ExcitationSystemDynamics.SynchronousMachineDynamics

          ExcIEEEAC4A --> SynchronousMachineDynamics : ExcitationSystemDynamics.SynchronousMachineDynamics
          click SynchronousMachineDynamics href "../SynchronousMachineDynamics"

      ExcIEEEAC4A : ExcIEEEAC4A.ta

          ExcIEEEAC4A --> Seconds : ExcIEEEAC4A.ta
          click Seconds href "../Seconds"

      ExcIEEEAC4A : ExcIEEEAC4A.tb

          ExcIEEEAC4A --> Seconds : ExcIEEEAC4A.tb
          click Seconds href "../Seconds"

      ExcIEEEAC4A : ExcIEEEAC4A.tc

          ExcIEEEAC4A --> Seconds : ExcIEEEAC4A.tc
          click Seconds href "../Seconds"

      ExcIEEEAC4A : ExcitationSystemDynamics.UnderexcitationLimiterDynamics

          ExcIEEEAC4A --> UnderexcitationLimiterDynamics : ExcitationSystemDynamics.UnderexcitationLimiterDynamics
          click UnderexcitationLimiterDynamics href "../UnderexcitationLimiterDynamics"

      ExcIEEEAC4A : ExcIEEEAC4A.vimax

          ExcIEEEAC4A --> PU : ExcIEEEAC4A.vimax
          click PU href "../PU"

      ExcIEEEAC4A : ExcIEEEAC4A.vimin

          ExcIEEEAC4A --> PU : ExcIEEEAC4A.vimin
          click PU href "../PU"

      ExcIEEEAC4A : ExcitationSystemDynamics.VoltageCompensatorDynamics

          ExcIEEEAC4A --> VoltageCompensatorDynamics : ExcitationSystemDynamics.VoltageCompensatorDynamics
          click VoltageCompensatorDynamics href "../VoltageCompensatorDynamics"

      ExcIEEEAC4A : ExcIEEEAC4A.vrmax

          ExcIEEEAC4A --> PU : ExcIEEEAC4A.vrmax
          click PU href "../PU"

      ExcIEEEAC4A : ExcIEEEAC4A.vrmin

          ExcIEEEAC4A --> PU : ExcIEEEAC4A.vrmin
          click PU href "../PU"

Inheritance

IdentifiedObject
- DynamicsFunctionBlock
  - ExcitationSystemDynamics
    - ExcIEEEAC4A

Attributes

Name	URI	Cardinality and Range	Description	Inheritance
vimax	cim:ExcIEEEAC4A.vimax	1 PU	Maximum voltage regulator input limit (V_IMAX) (> ...	direct
vimin	cim:ExcIEEEAC4A.vimin	1 PU	Minimum voltage regulator input limit (V_IMIN) (< ...	direct
tc	cim:ExcIEEEAC4A.tc	1 Seconds	Voltage regulator time constant (T_C) (>= 0)	direct
tb	cim:ExcIEEEAC4A.tb	1 Seconds	Voltage regulator time constant (T_B) (>= 0)	direct
ka	cim:ExcIEEEAC4A.ka	1 PU	Voltage regulator gain (K_A) (> 0)	direct
ta	cim:ExcIEEEAC4A.ta	1 Seconds	Voltage regulator time constant (T_A) (> 0)	direct
vrmax	cim:ExcIEEEAC4A.vrmax	1 PU	Maximum voltage regulator output (V_RMAX) (> 0)	direct
vrmin	cim:ExcIEEEAC4A.vrmin	1 PU	Minimum voltage regulator output (V_RMIN) (< 0)	direct
kc	cim:ExcIEEEAC4A.kc	1 PU	Rectifier loading factor proportional to commutating reactance (K<s...	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:ExcIEEEAC4A
native	this:ExcIEEEAC4A