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Error estimation of second order extended state observer

  • Yu Hang Wang*
  • , Yu Yao
  • , Ke Mao Ma
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Error analysis and estimation of the second order extended state observer(ESO) were done by non-continuous piecewise Lyapunov function, and the system stability were proved by multiple Lyapunov function method. Several improvements has been made to the existing error analysis as follows: considering the complete form of the fal function in the error analysis; choosing the non-continuous piecewise Lyapunov function to get better choose rule of parameters; giving the judging criteria of error convergence for the ESO with different parameters and the convergence value of the error.

Original languageEnglish
Pages (from-to)143-147
Number of pages5
JournalJilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition)
Volume40
Issue number1
StatePublished - Jan 2010

Keywords

  • Automatic control technology
  • Error analysis
  • Extended state observer(ESO)
  • Multiple Lyapunov function
  • Piecewise Lyapunov function

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