Induction motor broken rotor bar detection based on rotor flux angle monitoring

Mitja Nemec (Avtor), Vanja Ambrožič (Avtor), Rastko Fišer (Avtor), David Nedeljković (Avtor), Klemen Drobnič (Avtor)

Povzetek

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.

Ključne besede

diagnostika okvar;asinhronski motorji;modeliranje;motor s kratkostično kletko;izmenični pogoni;fault diagnosis;induction motors;modeling;squirrel cage motors;AC motor drives;

Podatki

Jezik:	Angleški jezik
Leto izida:	2019
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FE - Fakulteta za elektrotehniko
UDK:	621.313.33
COBISS:	12376404
ISSN:	1996-1073
Št. ogledov:	183
Št. prenosov:	60
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	diagnostika okvar;asinhronski motorji;modeliranje;motor s kratkostično kletko;izmenični pogoni;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-17
Letnik:	ǂno. ǂ5
Zvezek:	794
Čas izdaje:	Mar. 2019
DOI:	10.3390/en12050794
ID:	13659361