The method, apparatus and system for monitoring of determining a rotor angle of a rotating shaft by means of a resolver

摘要

A method for monitoring of determining a rotor angle (φ) of a rotating shaft (300) by means of a resolver,- the resolver comprises:- at least a first stator winding (100),- at least one second stator winding (101), the winding axis to the winding axis of the at least one first stator winding in a right angle, and- at least one rotor winding (102) which, with the rotating shaft is connected in a rotationally fixed manner,- the rotor angle by means of rotor excitation or stator excitation is determined, with the following monitoring steps, which is independent of the determining of the rotor angle excitation by means of the rotor or stator excitation be carried out:- Measurement of voltage characteristics at the at least one first stator winding and / or of the at least one second stator winding and / or of the at least one rotor winding,- Measurement of current characteristics ik in the at least one first stator winding and / or the at least one second stator winding and / or the at least one rotor winding and- Evaluating the measured voltage curves and / or of the measured current profiles for monitoring the determining of the rotor angle,- with the measured voltage curves and the measured current characteristics to the at least easily redundant determining the rotor angle can be evaluated independently of the determining of the rotor angle excitation by means of the rotor or stator excitation.