| Title |
Interturn Fault Diagnosis Method of Induction Motor by Impedance Magnitude Comparison |
| Authors |
구본관(Gu, Bon-Gwan) ; 박준성(Park, Joon Sung) ; 공태식(Kong, Tae-Sik) ; 김태원(Kim, Taewon) ; 박태준(Park, Taejoon) |
| DOI |
https://doi.org/10.5370/KIEE.2017.66.1.144 |
| Keywords |
Interturn fault ; Fault model ; Induction motor fault ; Impedance unbalance |
| Abstract |
A motor model and off-line diagnosis method of the induction motor having an interturn fault(ITF) is studied. The proposed method is based on the magnitude comparison of the six impedance in the d-q plane. To prove the impedance unbalance, the induction motor model is presented with an ITF circuit loop with a fault resistance. Then, six impedance components in the stationary d-q plane are defined depending on the connected phase windings. Finding the maximum and minimum magnitude of the six impedance, the ITF and the faulty phase can be founded. To verify the proposed method, the experimental results with an induction motor having an ITF are shown. |