Rotor position detection in an electrical machine

Details Rotor position detection in an electrical machine Rotor position detection in an electrical machine

2007-02-06

2007-02-06

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Position measurement

C318S701000

Reexamination Certificate

active

11186671

ABSTRACT:
An electrical machine has a rotor position transducer which provides output signals to a control system. The output signals contain errors due to component shortcomings and manufacturing imperfections. A method is disclosed which is able to determine the errors in the signals by comparison with calibrated data, so as to provide corrections to the control system of the machine. The corrections may be stored in the control system and used to improve the accuracy of the transducer output signals, thus improving the output of the machine.

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Stephenson, et al., “The Characteristics, Design and Applications of Switched Reluctance Motors and Drives,” PCIM '93, Nürnberg, Germany, Conference & Exhibition, Jun. 21-24, 1993, pp. 1-68.

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