Control and drive of a rotating machine with an inner and an outer stator

A computer program for continuous operation of a rotating machine having an inner stator and an outer stator, the computer program comprising computer program code which, when run on a controller, causes the controller to:

• set a rotating machine reference operational value for a whole rotating machine;
• obtain operational parameters for an inner stator and for an outer stator of the rotating machine, wherein the operational parameters include cross-coupling between the inner and outer stators;
• determine an inner stator reference operational value for the inner stator and an outer stator reference operational value for the outer stator based on the set rotating machine reference operational value for the whole rotating machine and the obtained operational parameters;
• and
• drive the rotating machine based on the determined inner stator reference operational value for the inner stator and on the determined outer stator reference operational value for the outer stator, wherein the determined inner stator reference operational value for the inner stator differs from the determined outer stator reference operational value for the outer stator.

A computer program product comprising a computer program which generates controller signals to:

• set a rotating machine reference operational value for a whole rotating machine;
• obtain operational parameters for an inner stator and for an outer stator of the rotating machine, wherein the operational parameters include cross-coupling between the inner and outer stators;
• determine an inner stator reference operational value for the inner stator and an outer stator reference operational value for the outer stator based on the set rotating machine reference operational value for the whole rotating machine and the obtained operational parameters;
• and
• drive the rotating machine based on the determined inner stator reference operational value for the inner stator and on the determined outer stator reference operational value for the outer stator, wherein the determined inner stator reference operational value for the inner stator differs from the determined outer stator reference operational value for the outer stator.