Circuit-based induction motor drive reliability under different control schemes and safe-mode operation

Ali M. Bazzi, Xiangyu Ding, Alejandro Dominguez-Garcia, Philip T Krein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a reliability modeling method for induction motor drives based on an equivalent dq 0 circuit model. The machine input voltages or currents are modeled as sources dependent on states and commands. This enables reliability analysis for different control strategies. The method utilizes failure modes and effects analysis, Monte Carlo simulations, and Markov models. Different controllers, in addition to faults in the machine, power electronics, and sensors, are addressed. The control methods considered in the analysis include constant volts per hertz (V/f), indirect field-oriented control (IFOC), direct torque control (DTC), and feedback linearization control (FLC). Direct line operation (DLO) is also considered. The proposed circuit-based reliability modeling method is versatile and easy to implement in commercial circuit simulators. The simulation model, which is experimentally verified, uses a reliability tool to evaluate the mean time to failure (MTTF) of the drive. Results show that, as expected, V/f control has the highest MTTF, due to its independence from sensor feedback, but poor dynamics. Among the closed-loop controllers, IFOC and DTC are better for fast dynamics, simplicity, and acceptable MTTF, but FLC is shown to have the longest MTTF. A safe-mode control scheme is proposed under which the drive is shown to have an even longer MTTF than V/f.

Original languageEnglish (US)
Title of host publication2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011
Pages653-660
Number of pages8
DOIs
StatePublished - May 13 2011
Event26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011 - Fort Worth, TX, United States
Duration: Mar 6 2011Mar 10 2011

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011
CountryUnited States
CityFort Worth, TX
Period3/6/113/10/11

Keywords

  • Motor drive reliability
  • backup controller induction motor drives
  • faults in motor drives
  • reliability enhancement
  • safe mode controller

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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