SynchronousMachineDetailed Class
All synchronous machine detailed types use a subset of the same data parameters and input/output variables. The several variations differ in the following ways: - the number of equivalent windings that are included; - the way in which saturation is incorporated into the model; - whether or not “subtransient saliency” (<i>X''q</i> not = <i>X''d</i>) is represented. It is not necessary for each simulation tool to have separate models for each of the model types. The same model can often be used for several types by alternative logic within the model. Also, differences in saturation representation might not result in significant model performance differences so model substitutions are often acceptable.
Diagram
Свойства (4)
| ID | Тип | Описание | Количество |
|---|---|---|---|
| saturationFactorQAxis | Float | Quadrature-axis saturation factor at rated terminal voltage (<i>S1q</i>) (>= 0). Typical value = 0,02. | 0..1 |
| saturationFactor120QAxis | Float | Quadrature-axis saturation factor at 120% of rated terminal voltage (<i>S12q</i>) (>= SynchonousMachineDetailed.saturationFactorQAxis). Typical value = 0,12. | 0..1 |
| efdBaseRatio | Float | Ratio (exciter voltage/generator voltage) of <i>Efd</i> bases of exciter and generator models (> 0). Typical value = 1. | 1..1 |
| ifdBaseType | IfdBaseKind | Excitation base system mode. It should be equal to the value of <i>WLMDV</i> given by the user. <i>WLMDV</i> is the PU ratio between the field voltage and the excitation current: <i>Efd</i> = <i>WLMDV</i> x <i>Ifd</i>. Typical value = ifag. | 1..1 |
Дочерние классы (2)
| Класс | Описание |
|---|---|
| cim:SynchronousMachineTimeConstantReactance |
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. |
| cim:SynchronousMachineEquivalentCircuit |
The electrical equations for all variations of the synchronous models are based on the SynchronousEquivalentCircuit diagram for the direct- and quadrature- axes. Equations for conversion between equivalent circuit and time constant reactance forms: <i>Xd</i> = <i>Xad </i>+<i> Xl</i> <i>X’d</i> = <i>Xl</i> + <i>Xad</i> x <i>Xfd</i> / (<i>Xad</i> + <i>Xfd</i>) <i>X”d</i> = <i>Xl</i> + <i>Xad</i> x <i>Xfd</i> x <i>X1d</i> / (<i>Xad</i> x <i>Xfd</i> + <i>Xad</i> x <i>X1d</i> + <i>Xfd</i> x <i>X1d</i>) <i>Xq</i> = <i>Xaq</i> + <i>Xl</i> <i>X’q</i> = <i>Xl</i> + <i>Xaq</i> x <i>X1q</i> / (<i>Xaq</i> + <i>X1q</i>) <i>X”q</i> = <i>Xl</i> + <i>Xaq</i> x <i>X1q</i> x <i>X2q</i> / (<i>Xaq</i> x <i>X1q</i> + <i>Xaq</i> x <i>X2q</i> + <i>X1q</i> x <i>X2q</i>) <i>T’do</i> = (<i>Xad</i> + <i>Xfd</i>) / (<i>omega</i><i><sub>0</sub></i> x <i>Rfd</i>) <i>T”do</i> = (<i>Xad</i> x <i>Xfd</i> + <i>Xad</i> x <i>X1d</i> + <i>Xfd</i> x <i>X1d</i>) / (<i>omega</i><i><sub>0</sub></i> x <i>R1d</i> x (<i>Xad</i> + <i>Xfd</i>) <i>T’qo</i> = (<i>Xaq</i> + <i>X1q</i>) / (<i>omega</i><i><sub>0</sub></i> x <i>R1q</i>) <i>T”qo</i> = (<i>Xaq</i> x <i>X1q</i> + <i>Xaq</i> x <i>X2q</i> + <i>X1q</i> x <i>X2q</i>) / (<i>omega</i><i><sub>0</sub></i> x <i>R2q</i> x (<i>Xaq</i> + <i>X1q</i>) Same equations using CIM attributes from SynchronousMachineTimeConstantReactance class on left of "=" and SynchronousMachineEquivalentCircuit class on right (except as noted): xDirectSync = xad + RotatingMachineDynamics.statorLeakageReactance xDirectTrans = RotatingMachineDynamics.statorLeakageReactance + xad x xfd / (xad + xfd) xDirectSubtrans = RotatingMachineDynamics.statorLeakageReactance + xad x xfd x x1d / (xad x xfd + xad x x1d + xfd x x1d) xQuadSync = xaq + RotatingMachineDynamics.statorLeakageReactance xQuadTrans = RotatingMachineDynamics.statorLeakageReactance + xaq x x1q / (xaq+ x1q) xQuadSubtrans = RotatingMachineDynamics.statorLeakageReactance + xaq x x1q x x2q / (xaq x x1q + xaq x x2q + x1q x x2q) tpdo = (xad + xfd) / (2 x pi x nominal frequency x rfd) tppdo = (xad x xfd + xad x x1d + xfd x x1d) / (2 x pi x nominal frequency x r1d x (xad + xfd) tpqo = (xaq + x1q) / (2 x pi x nominal frequency x r1q) tppqo = (xaq x x1q + xaq x x2q + x1q x x2q) / (2 x pi x nominal frequency x r2q x (xaq + x1q) These are only valid for a simplified model where "Canay" reactance is zero. |
Информация о классе
- ID
cim:SynchronousMachineDetailed- Тип
- Class
- Наследует
- cim:SynchronousMachineDynamics
- Свойств
- 4