A survey on time and frequency characteristics of induction motors with broken rotor bars in line-start and inverter-fed modes. (March 2015)

• Record Type: Journal Article
• Authors: Ghorbanian, Vahid; Faiz, Jawad
• Is Part Of: Mechanical systems and signal processing. Volume 54/55(2015)
• Page Start: 427
• Page End: 456
• Publication Date: 2015-03
• Subjects: dq direct axis and quadrature axis components -- emf electro motive force -- m1 magnitude of the first harmonic -- mr magnitude of the right sideband component -- ml magnitude of the left sideband component -- mf magnitude of the fault component -- FOC field oriented control -- EMI electromagnetic interference -- IMF intrinsic mode functions -- UMP unbalanced magnetic pull -- PI proportional and integral controller -- GR gyration radius -- FFT fast Foriour transform -- MCSA motor current signature analysis -- HT Hilbert Transform -- HHT Hilbert–Huang Transform -- WT wavelet transform; Induction motors -- Rotor broken bars fault -- Condition monitoring -- Line-start mode -- Inverter-fed mode -- Time and frequency analysis; Structural dynamics -- Periodicals; Vibration -- Periodicals; Constructions -- Dynamique -- Périodiques; Vibration -- Périodiques; Structural dynamics; Vibration; Periodicals; 621
• DOI: 10.1016/j.ymssp.2014.08.022
• Languages: English
• ISSNs: 0888-3270

Abstract

Abstract: This paper deals with the comprehensive detailed concepts of the rotor broken bars fault in industrial induction motors. It reviews the most important and applicable techniques for fault detection, and addresses fault diagnosing procedures at different supply modes including line-start and inverter-fed modes. Moreover, new analytical and experimental aspects of fault are proposed using the time and frequency domain variations of the motor variables such as current, voltage, electromagnetic torque and speed. Since the faulty motor behavior cannot be correctly identified without considering the motor operating condition, and the capability of the previous fault indicators are studied deeply in order to investigate their applicability at different conditions. These conditions include various faults, load and reference speed levels and also fault location. All in all, a precise condition assessment of the rotor broken bar induction motors, suitable for industrial purposes, is presented considering motor supply and conditions changes. Highlights: A comprehensive detailed electrical, magnetic and mechanical analysis of industrial induction motors under broken bars fault is provided in this work. Effects of line-start and inverter-fed modes, different load levels and various reference speeds is deeply investigated. Different fault indexes are intuitively compared and investigated based on their applicability via analytical and experimental results. Advantages and disadvantages of fault diagnosis procedures are identified and an appropriate global fault detection routine which is applicable at different operating conditions is proposed.