SynchronousMachineTimeConstantReactance

Class Description

Synchronous machine detailed modelling types are defined by the combination of the attributes SynchronousMachineTimeConstantReactance.modelType and SynchronousMachineTimeConstantReactance.rotorType.
Parameter details: <ol> <li>The “p” in the time-related attribute names is a substitution for a “prime” in the usual parameter notation, e.g. tpdo refers to <i>T'do</i>.</li> <li>The parameters used for models expressed in time constant reactance form include:</li> </ol>

• RotatingMachine.ratedS (<i>MVAbase</i>);
• RotatingMachineDynamics.damping (<i>D</i>);
• RotatingMachineDynamics.inertia (<i>H</i>);
• RotatingMachineDynamics.saturationFactor (<i>S1</i>);
• RotatingMachineDynamics.saturationFactor120 (<i>S12</i>);
• RotatingMachineDynamics.statorLeakageReactance (<i>Xl</i>);
• RotatingMachineDynamics.statorResistance (<i>Rs</i>);
• SynchronousMachineTimeConstantReactance.ks (<i>Ks</i>);
• SynchronousMachineDetailed.saturationFactorQAxis (<i>S1q</i>);
• SynchronousMachineDetailed.saturationFactor120QAxis (<i>S12q</i>);
• SynchronousMachineDetailed.efdBaseRatio;
• SynchronousMachineDetailed.ifdBaseType;
• .xDirectSync (<i>Xd</i>);
• .xDirectTrans (<i>X'd</i>);
• .xDirectSubtrans (<i>X''d</i>);
• .xQuadSync (<i>Xq</i>);
• .xQuadTrans (<i>X'q</i>);
• .xQuadSubtrans (<i>X''q</i>);
• .tpdo (<i>T'do</i>);
• .tppdo (<i>T''do</i>);
• .tpqo (<i>T'qo</i>);
• .tppqo (<i>T''qo</i>);
• .tc.

Attributes

Name	Type	Description
ks	Float	Saturation loading correction factor (<i>Ks</i>) (>= 0). Used only by type J model. Typical value = 0.
modelType	SynchronousMachineModelKind	Type of synchronous machine model used in dynamic simulation applications.
rotorType	RotorKind	Type of rotor on physical machine.
tc	Seconds	Damping time constant for “Canay” reactance (>= 0). Typical value = 0.
tpdo	Seconds	Direct-axis transient rotor time constant (<i>T'do</i>) (> SynchronousMachineTimeConstantReactance.tppdo). Typical value = 5.
tppdo	Seconds	Direct-axis subtransient rotor time constant (<i>T''do</i>) (> 0). Typical value = 0,03.
tppqo	Seconds	Quadrature-axis subtransient rotor time constant (<i>T''qo</i>) (> 0). Typical value = 0,03.
tpqo	Seconds	Quadrature-axis transient rotor time constant (<i>T'qo</i>) (> SynchronousMachineTimeConstantReactance.tppqo). Typical value = 0,5.
xDirectSubtrans	PU	Direct-axis subtransient reactance (unsaturated) (<i>X''d</i>) (> RotatingMachineDynamics.statorLeakageReactance). Typical value = 0,2.
xDirectSync	PU	Direct-axis synchronous reactance (<i>Xd</i>) (>= SynchronousMachineTimeConstantReactance.xDirectTrans). The quotient of a sustained value of that AC component of armature voltage that is produced by the total direct-axis flux due to direct-axis armature current and the value of the AC component of this current, the machine running at rated speed. Typical value = 1,8.
xDirectTrans	PU	Direct-axis transient reactance (unsaturated) (<i>X'd</i>) (>= SynchronousMachineTimeConstantReactance.xDirectSubtrans). Typical value = 0,5.
xQuadSubtrans	PU	Quadrature-axis subtransient reactance (<i>X''q</i>) (> RotatingMachineDynamics.statorLeakageReactance). Typical value = 0,2.
xQuadSync	PU	Quadrature-axis synchronous reactance (<i>Xq</i>) (>= SynchronousMachineTimeConstantReactance.xQuadTrans). The ratio of the component of reactive armature voltage, due to the quadrature-axis component of armature current, to this component of current, under steady state conditions and at rated frequency. Typical value = 1,6.
xQuadTrans	PU	Quadrature-axis transient reactance (<i>X'q</i>) (>= SynchronousMachineTimeConstantReactance.xQuadSubtrans). Typical value = 0,3.

Relationships

Ancestors

• SynchronousMachineDetailed

Descendents

No descendent classes

Associations

None