Algebraic analysis of the stability of interconnected converter systems

  • Authors:

  • Kai Zenger;Ali Altowati;Teuvo Suntio

  • Affiliations:

  • Control Engineering Laboratory, Helsinki University of Technology, Espoo, TKK, Finland;Control Engineering Laboratory, Helsinki University of Technology, Espoo, TKK, Finland;Institute of Power Electronics, Tampere University of Technology, Tampere, Finland

  • Venue:
  • MIC'06 Proceedings of the 25th IASTED international conference on Modeling, indentification, and control
  • Year:
  • 2006

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Abstract

Small signal models of electric converter systems are investigated in the paper and their dynamical properties and interconnections are studied. A system theoretical approach is used to represent the models in a normal form, which makes analysis of such systems and their connections straightforward. Systematic methods to study both internal and input-output stability are presented, and implications to controller design principles are outlined.