US 11,988,715 B2
Device for diagnosing turn-short fault of induction motor and method thereof
Bon-Gwan Gu, Daegu (KR); and Seong Hwan Im, Daegu (KR)
Assigned to Kyungpook National University Industry-Academic Cooperation Foundation, Daegu (KR)
Filed by Kyungpook National University Industry-Academic Cooperation Foundation, Daegu (KR)
Filed on Nov. 29, 2021, as Appl. No. 17/536,430.
Application 17/536,430 is a continuation of application No. PCT/KR2021/009430, filed on Jul. 21, 2021.
Claims priority of application No. 10-2020-0142285 (KR), filed on Oct. 29, 2020.
Prior Publication US 2022/0137138 A1, May 5, 2022
Int. Cl. G01R 31/34 (2020.01); G01R 31/52 (2020.01)
CPC G01R 31/346 (2013.01) [G01R 31/52 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A device for diagnosing a turn-short fault of an induction motor, the device comprising:
an induction motor; and
a fault detecting unit configured to detect a current flowing in a supply line that supplies power to an input terminal of the induction motor and diagnose whether the induction motor has a fault,
wherein the fault detecting unit is configured to diagnose whether the induction motor has the fault by comparing a first reverse phase component current in which a current provided to the induction motor is reversely converted with a second reverse phase component current obtained by applying a dynamic model.