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LoadResponseCharacteristic

Models the characteristic response of the load demand due to changes in system conditions such as voltage and frequency. It is not related to demand response.

If LoadResponseCharacteristic.exponentModel is True, the exponential voltage or frequency dependent models are specified and used as to calculate active and reactive power components of the load model.

_The equations to calculate active and reactive power components of the load model are internal to the power flow calculation, hence they use different quantities depending on the use case of the data exchange. _

_The equations for exponential voltage dependent load model injected power are: _

pInjection= Pnominal* (Voltage/cim:BaseVoltage.nominalVoltage) ** cim:LoadResponseCharacteristic.pVoltageExponent

qInjection= Qnominal* (Voltage/cim:BaseVoltage.nominalVoltage) ** cim:LoadResponseCharacteristic.qVoltageExponent

_Where: _

1) * means "multiply" and ** is "raised to power of";

2) Pnominal and Qnominal represent the active power and reactive power at nominal voltage as any load described by the voltage exponential model shall be given at nominal voltage. This means that EnergyConsumer.p and EnergyConsumer.q are at nominal voltage.

_3) After power flow is solved: _

_-pInjection and qInjection correspond to SvPowerflow.p and SvPowerflow.q respectively. _

- Voltage corresponds to SvVoltage.v at the TopologicalNode where the load is connected.

URI: cim:LoadResponseCharacteristic
Type: Class

 classDiagram
    class LoadResponseCharacteristic
    click LoadResponseCharacteristic href "../LoadResponseCharacteristic"
      IdentifiedObject <|-- LoadResponseCharacteristic
        click IdentifiedObject href "../IdentifiedObject"

      LoadResponseCharacteristic : IdentifiedObject.description

      LoadResponseCharacteristic : LoadResponseCharacteristic.EnergyConsumer

          LoadResponseCharacteristic --> EnergyConsumer : LoadResponseCharacteristic.EnergyConsumer
          click EnergyConsumer href "../EnergyConsumer"

      LoadResponseCharacteristic : IdentifiedObject.energyIdentCodeEic

      LoadResponseCharacteristic : LoadResponseCharacteristic.exponentModel

      LoadResponseCharacteristic : IdentifiedObject.mRID

      LoadResponseCharacteristic : IdentifiedObject.name

      LoadResponseCharacteristic : LoadResponseCharacteristic.pConstantCurrent

      LoadResponseCharacteristic : LoadResponseCharacteristic.pConstantImpedance

      LoadResponseCharacteristic : LoadResponseCharacteristic.pConstantPower

      LoadResponseCharacteristic : LoadResponseCharacteristic.pFrequencyExponent

      LoadResponseCharacteristic : LoadResponseCharacteristic.pVoltageExponent

      LoadResponseCharacteristic : LoadResponseCharacteristic.qConstantCurrent

      LoadResponseCharacteristic : LoadResponseCharacteristic.qConstantImpedance

      LoadResponseCharacteristic : LoadResponseCharacteristic.qConstantPower

      LoadResponseCharacteristic : LoadResponseCharacteristic.qFrequencyExponent

      LoadResponseCharacteristic : LoadResponseCharacteristic.qVoltageExponent

      LoadResponseCharacteristic : IdentifiedObject.shortName

Inheritance

Attributes

Name URI Cardinality and Range Description Inheritance
EnergyConsumer cim:LoadResponseCharacteristic.EnergyConsumer *
EnergyConsumer		 The set of loads that have the response characteristics direct
exponentModel cim:LoadResponseCharacteristic.exponentModel 1
boolean		 Indicates the exponential voltage dependency model is to be used direct
pConstantCurrent cim:LoadResponseCharacteristic.pConstantCurrent 0..1
float		 Portion of active power load modelled as constant current direct
pConstantImpedance cim:LoadResponseCharacteristic.pConstantImpedance 0..1
float		 Portion of active power load modelled as constant impedance direct
pConstantPower cim:LoadResponseCharacteristic.pConstantPower 0..1
float		 Portion of active power load modelled as constant power direct
pFrequencyExponent cim:LoadResponseCharacteristic.pFrequencyExponent 0..1
float		 Exponent of per unit frequency effecting active power direct
pVoltageExponent cim:LoadResponseCharacteristic.pVoltageExponent 0..1
float		 Exponent of per unit voltage effecting real power direct
qConstantCurrent cim:LoadResponseCharacteristic.qConstantCurrent 0..1
float		 Portion of reactive power load modelled as constant current direct
qConstantImpedance cim:LoadResponseCharacteristic.qConstantImpedance 0..1
float		 Portion of reactive power load modelled as constant impedance direct
qConstantPower cim:LoadResponseCharacteristic.qConstantPower 0..1
float		 Portion of reactive power load modelled as constant power direct
qFrequencyExponent cim:LoadResponseCharacteristic.qFrequencyExponent 0..1
float		 Exponent of per unit frequency effecting reactive power direct
qVoltageExponent cim:LoadResponseCharacteristic.qVoltageExponent 0..1
float		 Exponent of per unit voltage effecting reactive power direct
description cim:IdentifiedObject.description 0..1
string		 The description is a free human readable text describing or naming the object IdentifiedObject
energyIdentCodeEic eu:IdentifiedObject.energyIdentCodeEic 0..1
string		 The attribute is used for an exchange of the EIC code (Energy identification ... IdentifiedObject
mRID cim:IdentifiedObject.mRID 1
string		 Master resource identifier issued by a model authority IdentifiedObject
name cim:IdentifiedObject.name 1
string		 The name is any free human readable and possibly non unique text naming the o... IdentifiedObject
shortName eu:IdentifiedObject.shortName 0..1
string		 The attribute is used for an exchange of a human readable short name with len... IdentifiedObject

Usages

used by used in type used
ConformLoad LoadResponse range LoadResponseCharacteristic
EnergyConsumer LoadResponse range LoadResponseCharacteristic
NonConformLoad LoadResponse range LoadResponseCharacteristic
StationSupply LoadResponse range LoadResponseCharacteristic

Identifier and Mapping Information

Schema Source

  • from schema: http://iec.ch/TC57/ns/CIM/CoreEquipment-EU#Package_CoreEquipmentProfile

Mappings

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