Method and device for identifying a faulty rotor position...

Details Method and device for identifying a faulty rotor position... Method and device for identifying a faulty rotor position...

2006-04-04

2006-04-04

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

C318S700000

Reexamination Certificate

active

07024332

ABSTRACT:
A method and a system for identifying a faulty rotor position angle signal of a synchronous motor powered by a converter, wherein a first flux angle is determined from the rotor position angle signal, wherein from the motor currents of the synchronous motor a current pointer is determined, wherein from a voltage pointer of the motor voltages of the synchronous motor and the current pointer a second flux angle is determined using a flux modeler of the synchronous motor, and wherein in the event of insufficient agreement between the first and second flux angle a faulty rotor position angle signal is identified.

REFERENCES:
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patent: 6396236 (2002-05-01), Luukko
patent: 2003/0025475 (2003-02-01), Won et al.
patent: 09056199 (1997-02-01), None
J. Hu et al.: “New Integration Algorithms for Estimating Motor Flux over a Wide Speed Range” in IEEE Transations power power electronics, vol. 13, No. 5, Sep. 1998, pp. 969-977.
R. Lorenz et al.: Encorderless IPM Traction Drive for EV/HEV's in Industry Applications Conference, 2001, Thirty-Sixth IAS Annual Meeting, Conference Record of the 2001 IEEE, vol. 3, Sep. 30, 2001-Oct. 4, 2001, pp. 1703-1707.

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