Method and device for adaptation of the system parameter rotor-resistance of a field-orientated driven turning-field motor without a mechanical rotary transducer

摘要

The method involves determining a stator flux amplitude and a stator flux amplitude mean value from a computed stator flux. A rotor resistance correction value is derived from the stator flux amplitude, the stator flux amplitude mean value and a quadrature torque difference. The correction value is multiplied by a pilot control value for the rotor resistance system parameter.