A Current Dynamic Analysis Based Open-Circuit Fault Diagnosis Method in Voltage-Source Inverter Fed Induction Motors

Lisi Tian; Feng Wu; Yi Shi; Jin Zhao

A Current Dynamic Analysis Based Open-Circuit Fault Diagnosis Method in Voltage-Source Inverter Fed Induction Motors

Vol. 17, No. 3, pp. 725-732, May 2017

10.6113/JPE.2019.17.3.725

Dynamic time warping

Fault diagnosis

Open-circuit

Similarity Measurement

Voltage-source inverter

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Abstract

This paper proposed a real-time, low-cost, fast transistor open-circuit fault diagnosis method for voltage-source inverter fed induction motors. A transistor open-circuit changes the symmetry of the inverter topology, leading to different similarities among three phase load currents. In this paper, dynamic time warping is proposed to describe the similarities among load currents. The proposed diagnosis is independent of the system model and needs no extra sensors or electrical circuits. Both simulation and experimental results show the high efficiency of the proposed fault diagnosis method.

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Cite this article

[IEEE Style]

L. Tian, F. Wu, Y. Shi, J. Zhao, "A Current Dynamic Analysis Based Open-Circuit Fault Diagnosis Method in Voltage-Source Inverter Fed Induction Motors," Journal of Power Electronics, vol. 17, no. 3, pp. 725-732, 2017. DOI: 10.6113/JPE.2019.17.3.725.

[ACM Style]

Lisi Tian, Feng Wu, Yi Shi, and Jin Zhao. 2017. A Current Dynamic Analysis Based Open-Circuit Fault Diagnosis Method in Voltage-Source Inverter Fed Induction Motors. Journal of Power Electronics, 17, 3, (2017), 725-732. DOI: 10.6113/JPE.2019.17.3.725.