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Implementation of online air-gap torque monitor for detection of squirrel cage rotor faults using TMS320C31

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3 Author(s)
V. V. Thomas ; Dept. of Electr. Eng., Indian Inst. of Technol., Madras, India ; K. Vasudevan ; V. J. Kumar

This paper proposes a digital signal processor (DSP) based implementation of online air-gap torque estimator for detection of squirrel cage rotor faults. Two noninvasive, computationally efficient methods for online air-gap torque monitoring are discussed. In both the methods, the air-gap torque is computed from two stator voltages and currents and is cost effective when compared with the use of a conventional torque transducer. The online air-gap torque monitor has been implemented using TMS320C31 and successfully tested on faulty cage rotors.

Published in:

Power Electronics, Machines and Drives, 2002. International Conference on (Conf. Publ. No. 487)

Date of Conference:

4-7 June 2002