AsynchronousMachineEquivalentCircuit
The electrical equations of all variations of the asynchronous model are based on the AsynchronousEquivalentCircuit diagram for the direct- and quadrature- axes, with two equivalent rotor windings in each axis. Equations for conversion between equivalent circuit and time constant reactance forms: Xs = Xm + Xl X' = Xl + Xm x Xlr1 / (Xm + Xlr1) X'' = Xl + Xm x Xlr1 x Xlr2 / (Xm x Xlr1 + Xm x Xlr2 + Xlr1 x Xlr2) T'o = (Xm + Xlr1) / (omega0 x Rr1) T''o = (Xm x Xlr1 + Xm x Xlr2 + Xlr1 x Xlr2) / (omega0 x Rr2 x (Xm + Xlr1) Same equations using CIM attributes from AsynchronousMachineTimeConstantReactance class on left of "=" and AsynchronousMachineEquivalentCircuit class on right (except as noted): xs = xm + RotatingMachineDynamics.statorLeakageReactance xp = RotatingMachineDynamics.statorLeakageReactance + xm x xlr1 / (xm + xlr1) xpp = RotatingMachineDynamics.statorLeakageReactance + xm x xlr1 x xlr2 / (xm x xlr1 + xm x xlr2 + xlr1 x xlr2) tpo = (xm + xlr1) / (2 x pi x nominal frequency x rr1) tppo = (xm x xlr1 + xm x xlr2 + xlr1 x xlr2) / (2 x pi x nominal frequency x rr2 x (xm + xlr1).
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CIM standard (perspective) |
IEC61970 (Grid) |
Slots
| Name | Cardinality | Type | Description |
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1 |
Asynchronous machine to which this asynchronous machine dynamics model applies. |
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1 |
Dataset containing the data objects. |
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0..1 |
Damper 1 winding resistance. |
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0..1 |
Damper 2 winding resistance. |
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0..1 |
Damper 1 winding leakage reactance. |
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0..1 |
Damper 2 winding leakage reactance. |
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0..1 |
Magnetizing reactance. |
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0..1 |
Mechanical load model associated with this asynchronous machine model. |
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0..1 |
The single CIM data object in the appropriate dataset context. |
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0..1 |
Turbine-governor model associated with this asynchronous machine model. |
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0..1 |
Wind generator type 1 or type 2 model associated with this asynchronous machine model. |
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0..1 |
The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy. The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time. |
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0..1 |
Damping torque coefficient (D) (>= 0). A proportionality constant that, when multiplied by the angular velocity of the rotor poles with respect to the magnetic field (frequency), results in the damping torque. This value is often zero when the sources of damping torques (generator damper windings, load damping effects, etc.) are modelled in detail. Typical value = 0. |
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0..1 |
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. |
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0..1 |
Function block used indicator. true = use of function block is enabled false = use of function block is disabled. |
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0..1 |
Inertia constant of generator or motor and mechanical load (H) (> 0). This is the specification for the stored energy in the rotating mass when operating at rated speed. For a generator, this includes the generator plus all other elements (turbine, exciter) on the same shaft and has units of MW x s. For a motor, it includes the motor plus its mechanical load. Conventional units are PU on the generator MVA base, usually expressed as MW x s / MVA or just s. This value is used in the accelerating power reference frame for operator training simulator solutions. Typical value = 3. |
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0..1 |
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. |
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0..1 |
The name is any free human readable and possibly non unique text naming the object. |
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0..1 |
Saturation factor at rated terminal voltage (S1) (>= 0). Not used by simplified model. Defined by defined by S(E1) in the SynchronousMachineSaturationParameters diagram. Typical value = 0,02. |
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0..1 |
Saturation factor at 120% of rated terminal voltage (S12) (>= RotatingMachineDynamics.saturationFactor). Not used by the simplified model, defined by S(E2) in the SynchronousMachineSaturationParameters diagram. Typical value = 0,12. |
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0..1 |
Stator leakage reactance (Xl) (>= 0). Typical value = 0,15. |
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0..1 |
Stator (armature) resistance (Rs) (>= 0). Typical value = 0,005. |
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0..* |
The diagram objects that are associated with the domain object. |
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0..* |
All names of this identified object. |
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0..* |
Data objects registered. |
aliasName
The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy. The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
AsynchronousMachine
Asynchronous machine to which this asynchronous machine dynamics model applies.
URI |
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Cardinality |
1 |
Type |
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Inherited from |
damping
Damping torque coefficient (D) (>= 0). A proportionality constant that, when multiplied by the angular velocity of the rotor poles with respect to the magnetic field (frequency), results in the damping torque. This value is often zero when the sources of damping torques (generator damper windings, load damping effects, etc.) are modelled in detail. Typical value = 0.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
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.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
DiagramObjects
The diagram objects that are associated with the domain object.
URI |
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Cardinality |
0..* |
Type |
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Inherited from |
enabled
Function block used indicator. true = use of function block is enabled false = use of function block is disabled.
URI |
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|---|---|
Cardinality |
0..1 |
Type |
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Inherited from |
inertia
Inertia constant of generator or motor and mechanical load (H) (> 0). This is the specification for the stored energy in the rotating mass when operating at rated speed. For a generator, this includes the generator plus all other elements (turbine, exciter) on the same shaft and has units of MW x s. For a motor, it includes the motor plus its mechanical load. Conventional units are PU on the generator MVA base, usually expressed as MW x s / MVA or just s. This value is used in the accelerating power reference frame for operator training simulator solutions. Typical value = 3.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
InstanceSet
Dataset containing the data objects.
URI |
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|---|---|
Cardinality |
1 |
Type |
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Inherited from |
MechanicalLoadDynamics
Mechanical load model associated with this asynchronous machine model.
URI |
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|---|---|
Cardinality |
0..1 |
Type |
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Inherited from |
mRID
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.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
name
The name is any free human readable and possibly non unique text naming the object.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
Names
All names of this identified object.
URI |
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Cardinality |
0..* |
Type |
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Inherited from |
PropertiesCIMDataObject
The single CIM data object in the appropriate dataset context.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
rr1
Damper 1 winding resistance.
URI |
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Cardinality |
0..1 |
Type |
rr2
Damper 2 winding resistance.
URI |
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Cardinality |
0..1 |
Type |
saturationFactor
Saturation factor at rated terminal voltage (S1) (>= 0). Not used by simplified model. Defined by defined by S(E1) in the SynchronousMachineSaturationParameters diagram. Typical value = 0,02.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
saturationFactor120
Saturation factor at 120% of rated terminal voltage (S12) (>= RotatingMachineDynamics.saturationFactor). Not used by the simplified model, defined by S(E2) in the SynchronousMachineSaturationParameters diagram. Typical value = 0,12.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
statorLeakageReactance
Stator leakage reactance (Xl) (>= 0). Typical value = 0,15.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
statorResistance
Stator (armature) resistance (Rs) (>= 0). Typical value = 0,005.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
TargetingCIMDataObject
Data objects registered.
URI |
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Cardinality |
0..* |
Type |
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Inherited from |
TurbineGovernorDynamics
Turbine-governor model associated with this asynchronous machine model.
URI |
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Cardinality |
0..1 |
Type |
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Inherited from |
WindTurbineType1or2Dynamics
Wind generator type 1 or type 2 model associated with this asynchronous machine model.
URI |
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|---|---|
Cardinality |
0..1 |
Type |
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Inherited from |
xlr1
Damper 1 winding leakage reactance.
URI |
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|---|---|
Cardinality |
0..1 |
Type |