cimpy.cgmes_v2_4_15.ExcIEEEDC3A module

class cimpy.cgmes_v2_4_15.ExcIEEEDC3A.ExcIEEEDC3A(efd1=0.0, efd2=0.0, exclim=False, ke=0.0, kv=0.0, seefd1=0.0, seefd2=0.0, te=0.0, trh=0.0, vrmax=0.0, vrmin=0.0, *args, **kw_args)

The class represents IEEE Std 421.5-2005 type DC3A model. This model represents represent 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 Standard 421.5-2005 Section 5.3.

efd1:

Exciter voltage at which exciter saturation is defined (E). Typical Value = 3.375. Default: 0.0

efd2:

Exciter voltage at which exciter saturation is defined (E). Typical Value = 3.15. Default: 0.0

exclim:

(exclim). IEEE standard is ambiguous about lower limit on exciter output. true = a lower limit of zero is applied to integrator output false = a lower limit of zero is not applied to integrator output. Typical Value = true. Default: False

ke:

Exciter constant related to self-excited field (K). Typical Value = 0.05. Default: 0.0

kv:

Fast raise/lower contact setting (K). Typical Value = 0.05. Default: 0.0

seefd1:

Exciter saturation function value at the corresponding exciter voltage, E (S[E]). Typical Value = 0.267. Default: 0.0

seefd2:

Exciter saturation function value at the corresponding exciter voltage, E (S[E]). Typical Value = 0.068. Default: 0.0

te:

Exciter time constant, integration rate associated with exciter control (T). Typical Value = 0.5. Default: 0.0

trh:

Rheostat travel time (T). Typical Value = 20. Default: 0.0

vrmax:

Maximum voltage regulator output (V). Typical Value = 1. Default: 0.0

vrmin:

Minimum voltage regulator output (V). Typical Value = 0. Default: 0.0

Documentation of parent class ExcitationSystemDynamics:

Excitation system function block whose behavior is described by reference to a standard model

DiscontinuousExcitationControlDynamics:

Discontinuous excitation control model associated with this excitation system model. Default: None

OverexcitationLimiterDynamics:

Overexcitation limiter model associated with this excitation system model. Default: None

PFVArControllerType1Dynamics:

Power Factor or VAr controller Type I model associated with this excitation system model. Default: None

PFVArControllerType2Dynamics:

Power Factor or VAr controller Type II model associated with this excitation system model. Default: None

PowerSystemStabilizerDynamics:

Power system stabilizer model associated with this excitation system model. Default: None

SynchronousMachineDynamics:

Synchronous machine model with which this excitation system model is associated. Default: None

UnderexcitationLimiterDynamics:

Undrexcitation limiter model associated with this excitation system model. Default: None

VoltageCompensatorDynamics:

Voltage compensator model associated with this excitation system model. Default: None

Documentation of parent class DynamicsFunctionBlock:

Abstract parent class for all Dynamics function blocks.

enabled:

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

Documentation of parent class IdentifiedObject:

This is a root class to provide common identification for all classes needing identification and naming attributes.

DiagramObjects:

The domain object to which this diagram object is associated. Default: “list”

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. Default: ‘’

energyIdentCodeEic:

The attribute is used for an exchange of the EIC code (Energy identification Code). The length of the string is 16 characters as defined by the EIC code. References: Default: ‘’

mRID:

Master resource identifier issued by a model authority. The mRID is globally 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 Edition 1, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements. Default: ‘’

name:

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

shortName:

The attribute is used for an exchange of a human readable short name with length of the string 12 characters maximum. Default: ‘’

Inheritance Diagram: