AsynchronousMachine
Class Description
A rotating machine whose shaft rotates asynchronously with the electrical field. Also known as an induction machine with no external connection to the rotor windings, e.g. squirrel-cage induction machine.
Attributes
| Name | Type | Description |
|---|---|---|
| asynchronousMachineType | AsynchronousMachineKind | Indicates the type of Asynchronous Machine (motor or generator). |
| converterFedDrive | Boolean | Indicates whether the machine is a converter fed drive. Used for short circuit data exchange according to IEC 60909. |
| efficiency | PerCent | Efficiency of the asynchronous machine at nominal operation as a percentage. Indicator for converter drive motors. Used for short circuit data exchange according to IEC 60909. |
| iaIrRatio | Float | Ratio of locked-rotor current to the rated current of the motor (Ia/Ir). Used for short circuit data exchange according to IEC 60909. |
| nominalFrequency | Frequency | Nameplate data indicates if the machine is 50 Hz or 60 Hz. |
| nominalSpeed | RotationSpeed | Nameplate data. Depends on the slip and number of pole pairs. |
| polePairNumber | Integer | Number of pole pairs of stator. Used for short circuit data exchange according to IEC 60909. |
| ratedMechanicalPower | ActivePower | Rated mechanical power (Pr in IEC 60909-0). Used for short circuit data exchange according to IEC 60909. |
| reversible | Boolean | Indicates for converter drive motors if the power can be reversible. Used for short circuit data exchange according to IEC 60909. |
| rr1 | Resistance | Damper 1 winding resistance. |
| rr2 | Resistance | Damper 2 winding resistance. |
| rxLockedRotorRatio | Float | Locked rotor ratio (R/X). Used for short circuit data exchange according to IEC 60909. |
| tpo | Seconds | Transient rotor time constant (greater than tppo). |
| tppo | Seconds | Sub-transient rotor time constant (greater than 0). |
| xlr1 | Reactance | Damper 1 winding leakage reactance. |
| xlr2 | Reactance | Damper 2 winding leakage reactance. |
| xm | Reactance | Magnetizing reactance. |
| xp | Reactance | Transient reactance (unsaturated) (greater than or equal to xpp). |
| xpp | Reactance | Sub-transient reactance (unsaturated). |
| xs | Reactance | Synchronous reactance (greater than xp). |
Relationships
Ancestors
Descendents
No descendent classes
Associations
| Source Class | Source Cardinality | Target | Target Cardinality | Source Name | Source Assoc. Description | Target Name | Target Assoc. Description |
|---|---|---|---|---|---|---|---|
| AsynchronousMachine | 1 | AsynchronousMachineDynamics | 0..1 | AsynchronousMachine | Asynchronous machine to which this asynchronous machine dynamics model applies. | AsynchronousMachineDynamics | Asynchronous machine dynamics model used to describe dynamic behaviour of this asynchronous machine. |