OPERATION OF A ROTATING ELECTRICAL MACHINE COMPRISING TWO POSITION SENSORS

摘要

The invention relates to a method for operating a rotating electrical machine (1) comprising a rotor (3), a polyphase field winding (5) and a commutation apparatus (9) for commutating field winding currents of the field winding (5) depending on rotor position values (R) for rotor positions of the rotor (3). First measurement values (A) for the rotor positions are detected by means of a first sensor apparatus (13) and second measurement values (B) for the rotor positions are detected by means of a second sensor apparatus (15). The rotor position values (R) are formed from weighted average values (M) of the first measurement values (A) and of the second measurement values (B) for the commutation of the field winding currents. The first sensor apparatus (13) has a higher resolution of the rotor positions than the second sensor apparatus (15) in a first rotation speed range of rotor rotation speeds of the rotor (3), and the first measurement values (A) are weighted more heavily than the second measurement values (B) in the first rotation speed range when forming the weighted average values (M).