A NEW METHOD FOR DETECTION OF UNBALANCE VOLTAGE SUPPLY IN THREE PHASE INDUCTION MOTOR
DOI:
https://doi.org/10.11113/jt.v78.8740Keywords:
Diagnosis, condition monitoring, inter-turn short circuit, insulation failure, induction motor, rotor slot harmonics, winding insulation.Abstract
Induction motors are associated with various techno-economic advantages; therefore these are widely used in residential, commercial and industrial systems. Cost effective and reliable process of condition monitoring of induction motor is very important. It is found that unbalance voltage supply is one of the major factors that produce uneven heating due to reverse current and leads to inter-turn short circuit. The issue regarding unbalanced voltage supply has attracted the attention of researcher and engineers in recent past. In this paper, a new effective non-invasive (online) method is proposed that only use rotor harmonic current signature for the detection of unbalance voltage supply instead of main line current signature. This is a sensor-less and online approach that accomplishes the reliable and accurate analysis of the induction motors. Moreover, it allows a continuous real time tracking without disturbing the normal operation and guarantees the overall production process. Additionally, this method recognizes the unbalance and estimate the severity of the unbalance in the voltage source. The effects of unbalance voltage supply are investigated through experiments. In order to perform the analysis and detect the asymmetry due to unbalance voltage, an experimental set up is designed that can accurately repeat the measurements. In the proposed work, unbalance voltage supply is diagnosed through experimental hardware setup. To validate the propose methods an experiment is performed that confirm that motor operating under unbalance voltage supply give a significant rise in the rotor harmonic while under balance voltage supply there is so such a rise in the rotor harmonic.
References
Gupta, R. A. A., Wadhwani, K., and Kapoor, S. R. 2011.Early Estimation of Faults in Induction Motors Using Symbolic Dynamic-Based Analysis of Stator Current Samples, Energy Conversion. IEEE Transactions. 26: 102-114.
Frosini, L. and Bassi, E. 2010.Stator Current and Motor Efficiency as Indicators for Different Types of Bearing Faults in Induction Motors. Industrial Electronics. IEEE Transactions. 57: 244-251.
Shashidhara, S. and Raju, D. P. 2013. Stator Winding Fault Diagnosis of Three-Phase Induction Motor by Parks Vector Approach. International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering. 2.
Moin Siddiqui, K. and Giri, V. 2012 Broken Rotor Bar Fault Detection In Induction Motors Using Wavelet Transform. In Computing, Electronics and Electrical Technologies (ICCEET), 2012 International Conference on. 1-6.
Yong-Hwa, K., Young-Woo, Y., Don-Ha, H., Jong-Ho, S. and Dong-Sik, K. 2013. High-Resolution Parameter Estimation Method to Identify Broken Rotor Bar Faults in Induction Motors, Industrial Electronics. IEEE Transactions. 60: 4103-4117, 2013.
Baldor, B. 2016. twww.reliance.com/pdf_elements/d7722.
Albrecht, P. F., Appiarius, J. C., McCoy, R. M., Owen, E. L. and D. K. Sharma. 1986 Assessment of the Reliability of Motors in Utility Applications - Updated, Energy Conversion. IEEE Transactions.-1: 39-46.
Tavner, L. R. P. J., Penman, J. and Sedding H. 2006 Condition monitoring of rotating electrical machines. Published by The Institution of Engineering and Technology, London, United Kingdom.
Zhang, J.-w., N.-h. Zhu, Yang, L., Yao, Q. and Lu, Q. 2007. A Fault Diagnosis Approach for Broken Rotor Bars Based on EMD and Envelope Analysis," Journal of China University of Mining and Technology. 17: 205-209.
Eftekhari, M., Moallem, M., Sadri, S. and Shojaei, A. 2013. Review Oinduction Motor Testing And Monitoring Methods For Inter Turn Stator Winding Faults In Electrical Engineering (ICEE). 2013 21st Iranian Conference. 1-6.
Joksimovic, G. M. And Penman, J. The Detection of Inter-Turn Short Circuits In The Stator Windings Of Operating Motors, Industrial Electronics. IEEE Transactions. 47: 1078-1084.
Nandi, S. 2005. Detection of Stator Faults in Induction Machines using Residual Saturation Harmonics," in Electric Machines and Drives, 2005 IEEE International Conference on 2005. 256-263.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
