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Non-saturable induction machine with squirrel-cage rotor and open stator windings.
Machines
This model of a squirrel-cage induction machine can only be used with the continuous state-space method. The machine model is based on a stationary reference frame (Clarke transformation). A sophisticated implementation of the Clarke transformation facilitates the connection of external inductances in series with the stator windings.
The machine operates as a motor or generator; the sign of the mechanical torque determines the mode of operation (positive for motoring, negative for generating). All electrical variables and parameters are viewed from the stator side. In the component icon, the positive terminal of phase a of the stator windings is marked with a dot.
In order to inspect the implementation, please select the component in your circuit and choose Look under mask from the Edit menu.
The rotor flux is computed as
The three-phase voltages ,
and
across the individual stator
windings are transformed into dq0 quantities:
Likewise, the stator currents in the stationary reference frame are transformed back into three-phase currents:
Electromagnetic torque:
Mechanical rotor speed :
Mechanical rotor angle :
Most parameters for the Induction Machine with slip-ring rotor are also applicable for this machine. Only the following parameter differs:
Same as for the Induction Machine with slip-ring rotor.
Most probe signals for the Induction Machine with slip-ring rotor are also available with this machine. Only the following probe signal is different: