Method, computer program product and system for operating an asynchronous machine

A computer program product for the operation of an asynchronous machine executed by a microcontroller to cause the microprocessor to implement a method, wherein the method comprises:

• a first closed loop control of a first three-phase winding by a first closed loop control method, comprising:
• supplying a first voltage vector to a first inverter device for operation of the first three-phase winding;
• and
• a second closed loop control of a second three-phase winding by a second closed loop control method, comprising:
• supplying a second voltage vector to a second inverter device for the operation of the second three-phase winding;
• and
• changing from the first closed loop control method to a first open loop control method in reaction to a first event;
• wherein the first open loop control method comprises:
• supplying a first reference current vector to a first filter device configured to filter a first reference current vector;
• supplying the filtered first reference current vector to a calculation device configured to calculate an electrical angle;
• supplying the electrical angle to a first transformation device configured to transform a first open loop control deviation vector;
• transforming a first open loop control deviation vector into a third voltage vector;
• and
• supplying the third voltage vector to the first inverter device to operate the first three-phase winding.

An asynchronous machine comprising a stator with a first three-phase winding and a second three-phase winding, a rotor, a first inverter device and a second inverter device, wherein the asynchronous machine is operated with a method comprising:

• a first closed loop control of a first three-phase winding by a first closed loop control method, comprising:
• supplying a first voltage vector to a first inverter device for operation of the first three-phase winding;
• and
• a second closed loop control of a second three-phase winding by a second closed loop control method, comprising:
• supplying a second voltage vector to a second inverter device for the operation of the second three-phase winding;
• and
• changing from the first closed loop control method to a first open loop control method in reaction to a first event;
• wherein the first open loop control method comprises:
• supplying a first reference current vector to a first filter device configured to filter a first reference current vector;
• supplying the filtered first reference current vector to a calculation device configured to calculate an electrical angle;
• supplying the electrical angle to a first transformation device configured to transform a first open loop control deviation vector;
• transforming a first open loop control deviation vector into a third voltage vector;
• and
• supplying the third voltage vector to the first inverter device to operate the first three-phase winding.