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Non-saturable induction machine with squirrel-cage rotor.
Electrical / Machines
This model of a squirrel-cage induction machine can only be used with the continuous state-space method. If you want to use the discrete state-space method or if you need to take saturation into account, please use the Induction Machine with Saturation and short-circuit the rotor terminals.
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; if the mechanical torque has the same sign as the rotational speed the machine is operating in motor mode, otherwise in generator mode. All electrical variables and parameters are viewed from the stator side. In the component icon, phase a of the stator winding 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
at the stator terminals are
transformed into dq 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 :
Same as for the Induction Machine with slip-ring rotor.
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 squirrel-cage machine. Only the following probe signal is different: