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Volume 10
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10.3390/electronics10091023
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Article

Wavelet Transform Based Fault Identification and Reconfiguration for a Reduced Switch Multilevel Inverter Fed Induction Motor Drive

by
Arigela Satya Veerendra
1,2,
Akeel A. Shah
1,*,
Mohd Rusllim Mohamed
2,*,
Chavali Punya Sekhar
3 and
Puiki Leung
1
1
Key Laboratory of Low-grade Energy Utilization Technologies and Systems, MOE, Chongqing University, Chongqing 400030, China
2
College of Engineering, Universiti Malaysia Pahang, Gambang, Kuantan 26300, Pahang, Malaysia
3
Department of Electrical & Electronics Engineering, Acharya Nagarjuna University, NH16, Nagarjuna Nagar, Guntur, Andhra Pradesh 522510, India
*
Authors to whom correspondence should be addressed.
Electronics 2021, 10(9), 1023; https://doi.org/10.3390/electronics10091023
Submission received: 4 March 2021 / Revised: 13 April 2021 / Accepted: 13 April 2021 / Published: 25 April 2021
(This article belongs to the Section Industrial Electronics)
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Abstract

The multilevel inverter-based drive system is greatly affected by several faults occurring on switching elements. A faulty switch in the inverter can potentially lead to more losses, extensive downtime and reduced reliability. In this paper, a novel fault identification and reconfiguration process is proposed by using discrete wavelet transform and auxiliary switching cells. Here, the discrete wavelet transform exploits a multiresolution analysis with a feature extraction methodology for fault identification and subsequently for reconfiguration. For increasing the reliability, auxiliary switching cells are integrated to replace faulty cells in a proposed reduced-switch 5-level multilevel inverter topology. The novel reconfiguration scheme compensates open circuit and short circuit faults. The complexity of the proposed system is lower relative to existing methods. This proposed technique effectively identifies and classifies faults using the multiresolution analysis. Furthermore, the measured current and voltage values during fault reconfiguration are close to those under healthy conditions. The performance is verified using the MATLAB/Simulink platform and a hardware model.
Keywords: multilevel inverter; induction motor drive; discrete wavelet transform; multiresolution analysis; feature extraction methodology multilevel inverter; induction motor drive; discrete wavelet transform; multiresolution analysis; feature extraction methodology

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MDPI and ACS Style

Veerendra, A.S.; Shah, A.A.; Mohamed, M.R.; Sekhar, C.P.; Leung, P. Wavelet Transform Based Fault Identification and Reconfiguration for a Reduced Switch Multilevel Inverter Fed Induction Motor Drive. Electronics 2021, 10, 1023. https://doi.org/10.3390/electronics10091023

AMA Style

Veerendra AS, Shah AA, Mohamed MR, Sekhar CP, Leung P. Wavelet Transform Based Fault Identification and Reconfiguration for a Reduced Switch Multilevel Inverter Fed Induction Motor Drive. Electronics. 2021; 10(9):1023. https://doi.org/10.3390/electronics10091023

Chicago/Turabian Style

Veerendra, Arigela Satya, Akeel A. Shah, Mohd Rusllim Mohamed, Chavali Punya Sekhar, and Puiki Leung. 2021. "Wavelet Transform Based Fault Identification and Reconfiguration for a Reduced Switch Multilevel Inverter Fed Induction Motor Drive" Electronics 10, no. 9: 1023. https://doi.org/10.3390/electronics10091023

APA Style

Veerendra, A. S., Shah, A. A., Mohamed, M. R., Sekhar, C. P., & Leung, P. (2021). Wavelet Transform Based Fault Identification and Reconfiguration for a Reduced Switch Multilevel Inverter Fed Induction Motor Drive. Electronics, 10(9), 1023. https://doi.org/10.3390/electronics10091023

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