Observer-based fault diagnosis of power electronics systems

Kieran T. Levin, Eric M. Hope, Alejandro D. Domínguez-García

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

Abstract

We propose a fault diagnosis method for power electronics systems that extends classical observer-based fault-sensitive detection filters for linear time-invariant systems to switched-linear systems commonly encountered in power electronics. The result is a piecewise-linear detection filter, which in the absence of faults, works the same way as an observer-it predicts the system states exactly. If a fault occurs, the state predicted by the filter differs from the true state of the system, and by appropriately choosing the filter gain, the filter residual has certain geometrical characteristics that makes the fault identifiable. An experimental platform to verify the feasibility of the proposed method is presented along with simulation and experimental results illustrating the feasibility and effectiveness of the method.

Original languageEnglish (US)
Title of host publication2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings
Pages4434-4440
Number of pages7
DOIs
StatePublished - Dec 20 2010
Event2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Atlanta, GA, United States
Duration: Sep 12 2010Sep 16 2010

Publication series

Name2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings

Other

Other2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010
CountryUnited States
CityAtlanta, GA
Period9/12/109/16/10

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Fingerprint Dive into the research topics of 'Observer-based fault diagnosis of power electronics systems'. Together they form a unique fingerprint.

  • Cite this

    Levin, K. T., Hope, E. M., & Domínguez-García, A. D. (2010). Observer-based fault diagnosis of power electronics systems. In 2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings (pp. 4434-4440). [5618444] (2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings). https://doi.org/10.1109/ECCE.2010.5618444