cimpy.cgmes_v2_4_15.ExcIEEEST7B module

class cimpy.cgmes_v2_4_15.ExcIEEEST7B.ExcIEEEST7B(kh=0.0, kia=0.0, kl=0.0, kpa=0.0, oelin=None, tb=0.0, tc=0.0, tf=0.0, tg=0.0, tia=0.0, uelin=None, vmax=0.0, vmin=0.0, vrmax=0.0, vrmin=0.0, *args, **kw_args)

The class represents IEEE Std 421.5-2005 type ST7B model. This model is representative of static potential-source excitation systems. In this system, the AVR consists of a PI voltage regulator. A phase lead-lag filter in series allows introduction of a derivative function, typically used with brushless excitation systems. In that case, the regulator is of the PID type. In addition, the terminal voltage channel includes a phase lead-lag filter. The AVR includes the appropriate inputs on its reference for overexcitation limiter (OEL1), underexcitation limiter (UEL), stator current limiter (SCL), and current compensator (DROOP). All these limitations, when they work at voltage reference level, keep the PSS (VS signal from Type PSS1A, PSS2A, or PSS2B) in operation. However, the UEL limitation can also be transferred to the high value (HV) gate acting on the output signal. In addition, the output signal passes through a low value (LV) gate for a ceiling overexcitation limiter (OEL2). Reference: IEEE Standard 421.5-2005 Section 7.7.

kh:

High-value gate feedback gain (K). Typical Value 1. Default: 0.0

kia:

Voltage regulator integral gain (K). Typical Value = 1. Default: 0.0

kl:

Low-value gate feedback gain (K). Typical Value 1. Default: 0.0

kpa:

Voltage regulator proportional gain (K). Typical Value = 40. Default: 0.0

oelin:

OEL input selector (OELin). Typical Value = noOELinput. Default: None

tb:

Regulator lag time constant (T). Typical Value 1. Default: 0.0

tc:

Regulator lead time constant (T). Typical Value 1. Default: 0.0

tf:

Excitation control system stabilizer time constant (T). Typical Value 1. Default: 0.0

tg:

Feedback time constant of inner loop field voltage regulator (T). Typical Value 1. Default: 0.0

tia:

Feedback time constant (T). Typical Value = 3. Default: 0.0

uelin:

UEL input selector (UELin). Typical Value = noUELinput. Default: None

vmax:

Maximum voltage reference signal (V). Typical Value = 1.1. Default: 0.0

vmin:

Minimum voltage reference signal (V). Typical Value = 0.9. Default: 0.0

vrmax:

Maximum voltage regulator output (V). Typical Value = 5. Default: 0.0

vrmin:

Minimum voltage regulator output (V). Typical Value = -4.5. 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: