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On linear observers and application to fault detection in synchronous generators

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Abstract

This work introduces an observer structure and highlights its distinct advantages in fault detection and isolation. Its application to the issue of shorted turns detection in synchronous generators is demonstrated. For the theoretical foundation, the convergence and design of Luenberger-type observers for disturbed linear time-invariant (LTI) single-input single-output (SISO) systems are reviewed with a particular focus on input and output disturbances. As an additional result, a simple observer design for stationary output disturbances that avoids a system order extension, as in classical results, is proposed.

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Authors and Affiliations

  1. Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany

    Jan Erik Stellet

  2. Swiss Federal Institute of Technology, 8092, Zurich, Switzerland

    Tobias Rogg

Authors
  1. Jan Erik Stellet
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  2. Tobias Rogg
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Correspondence to Jan Erik Stellet.

Additional information

Jan Erik STELLET received the B.Sc. and M.Sc. degrees in Electrical Engineering and Information Technology from the Karlsruhe Institute of Technology in 2010 and 2012, respectively. He is currently a Ph.D. student at the Karlsruhe Institute of Technology.

Tobias ROGG received the B.Sc. and M.Sc. degrees in Electrical Engineering and Information Technology from the Karlsruhe Institute of Technology in 2011 and 2014, respectively. He is currently a Ph.D. student at the Swiss Federal Institute of Technology in Zurich.

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Stellet, J.E., Rogg, T. On linear observers and application to fault detection in synchronous generators. Control Theory Technol. 12, 345–356 (2014). https://doi.org/10.1007/s11768-014-3036-z

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  • DOI: https://doi.org/10.1007/s11768-014-3036-z

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