By Topic

Online fault-detecting scheme of an inverter-fed permanent magnet synchronous motor under stator winding shorted turn and inverter switch open

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Kim, K.-H. ; Dept. of Electr. Eng., Seoul Nat. Univ. of Sci. & Technol., Seoul, South Korea ; Gu, B.-G. ; Jung, I.-S.

To detect faults in an inverter-fed permanent magnet synchronous motor drive under the circumstance having faults in a stator winding and inverter switch, an online basis fault-detecting scheme during motor operation is presented. The proposed scheme is achieved by monitoring the second-order harmonic component in q-axis current and the fault is detected by comparing these components with those in normal conditions. The non-fault harmonic data in an arbitrary operating condition are determined using the linear interpolation method with several sample harmonic data pre-measured in the stage of the initial drive setup. Once the fault is detected, the operating mode is changed to identify a fault source using the phase current waveform. To verify the effectiveness of the proposed fault detecting scheme, a test motor to allow inter-turn short in the stator winding has been built. The entire control system including harmonic analysis and fault detecting algorithm is implemented using digital signal processor TMS320F28335. Without requiring an additional hardware, the fault can be effectively detected by the proposed scheme during operation so long as the steady-state condition is satisfied.

Published in:

Electric Power Applications, IET  (Volume:5 ,  Issue: 6 )