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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

%%{init: {'theme':'base','themeVariables': {'lineColor': '#FF0000'}}}%%
classDiagram
    class LoadResponseCharacteristic
    click LoadResponseCharacteristic href "/Models/Profiles/CoreEquipment/ConcreteClasses/LoadResponseCharacteristic/"
    style LoadResponseCharacteristic fill:#102820,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        IdentifiedObject <|-- LoadResponseCharacteristic : inherits
            click IdentifiedObject href "/Models/Profiles/CoreEquipment/AbstractClasses/IdentifiedObject/"
            style IdentifiedObject fill:#8F9779,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        LoadResponseCharacteristic --> EnergyConsumer : LoadResponseCharacteristic.EnergyConsumer

        EnergyConsumer
            click EnergyConsumer href "/Models/Profiles/CoreEquipment/AbstractClasses/EnergyConsumer/"
            style EnergyConsumer fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        EnergyConsumer --> LoadResponseCharacteristic : EnergyConsumer.LoadResponse

        EnergyConsumer
            click EnergyConsumer href "/Models/Profiles/CoreEquipment/AbstractClasses/EnergyConsumer/"
            style EnergyConsumer fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white


        LoadResponseCharacteristic : LoadResponseCharacteristic.EnergyConsumer
        LoadResponseCharacteristic : LoadResponseCharacteristic.exponentModel
        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
        IdentifiedObject : IdentifiedObject.description
        IdentifiedObject : IdentifiedObject.energyIdentCodeEic
        IdentifiedObject : IdentifiedObject.mRID
        IdentifiedObject : IdentifiedObject.name
        IdentifiedObject : IdentifiedObject.shortName

Inheritance

Attributes

Name URI Cardinality and Range Description Inheritance
EnergyConsumer cim:LoadResponseCharacteristic.EnergyConsumer No cardinality available EnergyConsumer The set of loads that have the response characteristics. direct
exponentModel cim:LoadResponseCharacteristic.exponentModel No cardinality available boolean Indicates the exponential voltage dependency model is to be used. If false, the coefficient model is to be used.
The exponential voltage dependency model consist of the attributes:
- pVoltageExponent
- qVoltageExponent
- pFrequencyExponent
- qFrequencyExponent.
The coefficient model consist of the attributes:
- pConstantImpedance
- pConstantCurrent
- pConstantPower
- qConstantImpedance
- qConstantCurrent
- qConstantPower.
The sum of pConstantImpedance, pConstantCurrent and pConstantPower shall equal 1.
The sum of qConstantImpedance, qConstantCurrent and qConstantPower shall equal 1. direct
pConstantCurrent cim:LoadResponseCharacteristic.pConstantCurrent No cardinality available float Portion of active power load modelled as constant current. direct
pConstantImpedance cim:LoadResponseCharacteristic.pConstantImpedance No cardinality available float Portion of active power load modelled as constant impedance. direct
pConstantPower cim:LoadResponseCharacteristic.pConstantPower No cardinality available float Portion of active power load modelled as constant power. direct
pFrequencyExponent cim:LoadResponseCharacteristic.pFrequencyExponent No cardinality available float Exponent of per unit frequency effecting active power. direct
pVoltageExponent cim:LoadResponseCharacteristic.pVoltageExponent No cardinality available float Exponent of per unit voltage effecting real power. direct
qConstantCurrent cim:LoadResponseCharacteristic.qConstantCurrent No cardinality available float Portion of reactive power load modelled as constant current. direct
qConstantImpedance cim:LoadResponseCharacteristic.qConstantImpedance No cardinality available float Portion of reactive power load modelled as constant impedance. direct
qConstantPower cim:LoadResponseCharacteristic.qConstantPower No cardinality available float Portion of reactive power load modelled as constant power. direct
qFrequencyExponent cim:LoadResponseCharacteristic.qFrequencyExponent No cardinality available float Exponent of per unit frequency effecting reactive power. direct
qVoltageExponent cim:LoadResponseCharacteristic.qVoltageExponent No cardinality available float Exponent of per unit voltage effecting reactive power. direct
description cim:IdentifiedObject.description No cardinality available string 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. IdentifiedObject
energyIdentCodeEic eu:IdentifiedObject.energyIdentCodeEic No cardinality available string 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. For details on EIC scheme please refer to ENTSO-E web site. IdentifiedObject
mRID cim:IdentifiedObject.mRID No cardinality available string Master resource identifier issued by a model authority. The mRID is 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, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements. IdentifiedObject
name cim:IdentifiedObject.name No cardinality available string The name is any free human readable and possibly non unique text naming the object. IdentifiedObject
shortName eu:IdentifiedObject.shortName No cardinality available string The attribute is used for an exchange of a human readable short name with length of the string 12 characters maximum. IdentifiedObject

Schema Source

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