Method for determining the electric stator rotating field frequency and/or the rotation direction of the stator rotating field frequency of a synchronous or asynchronous machine and corresponding device and synchronous or asynchronous machine.

摘要

The method involves determining frequency and/or a rotational direction of an electrical stator rotating field by control signals for insulated gate bipolar transistors (2a-2f) of a control switching device (1) i.e. pulse-controlled three-phase inverter. The signals are generated on a side of a control electronic circuit (6) and/or evaluated under utilization of a model or a representation with voltage space vectors and/or a resulting target voltage space vector. The voltage space vector and/or target voltage space vector are determined based on power control and/or voltage-/frequency control. The control switching device is formed as a pulse-controlled three-phase inverter. An independent claim is also included for a device for determining frequency and/or a rotational direction of an electrical stator rotating field of a synchronous- or asynchronous machine.