Synchronous reluctance motor is totally different from asynchronous and a little different from typical synchronous.

During commissioning, it is necessary to enter the following motor data:
Sync nominal I [nCrS]
Nom sync motor speed [nSPS]
NOm motor torque [tqS]
Pole paires[PPnS]
Angel setting type[Ast]
- For reluctant motors, it is best to put Ast=RCI. IPM or SPM are not dedicated to reluctance motors.

Parameters rSAS, LdS, LqS do not need to be set, they will be measured by autotuning.
FrSS will be calculated from nSPS and PPnS.
Other motor-related parameters (MCR, CRTF) are recommended to keep in default.

Before executing autotuning, set TUN in rotation (Tunt=Rot). On a reluctant motor, the control law needs the current saturation waveform of the motor inductance Ld Lq. Drive command will adapt the Ld, and Lq depending on the motor load. With the standard tuning, the energy saving at low load will be very bad and there is a risk of not starting correctly. Bear in mind that the motor will move a little during autotuning.

Publicado para: Schneider Electric Portugal