Determination of interbar current effects in the detection of broken rotor bars in squirrel cage induction motors

1994 ◽  
Vol 9 (1) ◽  
pp. 152-158 ◽  
Author(s):  
R.F. Walliser ◽  
C.F. Landy
Author(s):  
Saddam Bensaoucha ◽  
Sid Ahmed Bessedik ◽  
Aissa Ameur ◽  
Ali Teta

Purpose The purpose of this study aims to focus on the detection and identification of the broken rotor bars (BRBs) of a squirrel cage induction motor (SCIM). The presented diagnosis technique is based on artificial neural networks (NNs) that use as inputs the results of the spectral analysis using the fast Fourier transform (FFT) of the reduced Park’s vector modulus (RPVM), along with the load values in which the motor operates. Design/methodology/approach First, this paper presents a comparative study between FFT applied on Hilbert modulus, Park’s vector modulus and RPVM to extract feature frequencies of BRB faults. Moreover, the extracted features of FFT applied to RPVM and the load values were selected as NNs’ inputs for the detection of the number of BRBs. Findings The obtained simulation results using MATLAB (Matrix Laboratory) environment show the effectiveness and accuracy of the proposed NNs based approach. Originality/value The current paper presents a novel diagnostic method for BRBs’ fault detection in SCIM, based on the combination between the signal processing analysis (FFT of RPVM) and artificial intelligence (NNs).


2011 ◽  
Vol 82 (11) ◽  
pp. 575-577
Author(s):  
V. P. Kazantsev ◽  
A. M. Kostygov ◽  
M. I. Kuznetsov ◽  
A. Yu. Moskokov

Author(s):  
Jongbin Park ◽  
Byunghwan Kim ◽  
Jinkyu Yang ◽  
Sang Bin Lee ◽  
Ernesto J. Wiedenbrug ◽  
...  

2021 ◽  
pp. 12-20
Author(s):  
Alexandr N. NAZARYCHEV ◽  
◽  
Alexandr S. STRAKHOV ◽  
Evgeniy M. NOVOSELOV ◽  
Denis A. POLKOSHNIKOV ◽  
...  

Despite the great attention paid by Russian and foreign authors to the problem of timely fault detection in the squirrel-cage rotor windings of high-voltage induction motors, the papers published by them pay little attention to issues related to substantiating the need for carrying out the relevant studies. However, this is especially important for high-voltage electric motors used in power plant auxiliaries. The aim of the study is to assess the consequences from failure of induction motors used in power plant auxiliaries caused by a break of the rotor winding bars. Assessment of the failure consequences is an important component of the transition to risk-oriented management of induction motors operation. The main components of the failure consequences and the resulting economic damage are identified. It is shown that failures of high-voltage induction motors caused by broken rotor bars can lead to economic damage of several million rubles. It has been found, based on computer simulation results, that during operation of induction motors with broken rotor bars, their magnetic and electrical losses increase significantly. The study results have shown that the economic damage may also be significant during long-term operation of a large number of induction motors with this type of failure. The accomplished assessment of the failure consequences in money terms confirms the relevance and necessity to perform functional monitoring of the state of the rotor windings of high-voltage induction motors used in the system of power plant auxiliaries.


Rail Vehicles ◽  
2011 ◽  
pp. 57-61
Author(s):  
Stanisław Rawicki ◽  
Marcin Nowak ◽  
Maciej Różański ◽  
Wojciech Wycinka

The paper deals with the problems of the tram vehicle control according to the criterion of the minimum electric energy consumption. The authors have extended the methodics given in literature and have elaborated the algorithm of the energysaving tram traffic taking into consideration various ride disturbances. During the running within the framework of the city conditions tram ride parameters change frequently. The mathematical models take into account the field-oriented control of traction three-phase squirrel-cage induction motors. Determination of the run algorithm ensuring the minimization of the electric energy use has been realized by application of the optimization procedure.


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