20.500.12556/RUL-131922 Induction motor broken rotor bar detection based on rotor flux angle monitoring This paper presents a method for the detection of broken rotor bars in an induction motor. After introducing a simplified dynamic model of an induction motor with broken cage bars in a rotor field reference frame which allows for observation of its internal states, a fault detection algorithm is proposed. Two different motor estimation models are used, and the difference between their rotor flux angles is extracted. A particular frequency component in this signal appears only in the case of broken rotor bars. Consequently, the proposed algorithm is robust enough to load oscillations and/or machine temperature change, and also indicates the fault severity. The method has been verified at different operating points by simulations as well as experimentally. The fault detection is reliable even in cases where traditional methods give ambiguous verdicts. fault diagnosis induction motors modeling squirrel cage motors AC motor drives diagnostika okvar asinhronski motorji modeliranje motor s kratkostično kletko izmenični pogoni true false true Angleški jezik Slovenski jezik Članek v reviji 2021-10-06 12:22:55 2021-10-06 12:22:56 2022-09-10 04:14:36 0000-00-00 00:00:00 2019 0 0 17 str. iss. 5, art. 794 Vol. 12 Mar. 2019 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.313.33 1996-1073 10.3390/en12050794 12376404 RAZ_Nemec_Mitja_2019.pdf RAZ_Nemec_Mitja_2019.pdf 1 4210A20916A6D73AB0ABC0DD9CF0E967 1736df444548bdaa8c218217fc16a2406619fb8175c4b2a6d51dac9bf91454e8 446ce592-268f-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149372 https://www.mdpi.com/1996-1073/12/5/794 1 14b26ddf-268f-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149371 Fakulteta za elektrotehniko 0 0 0