Construction of interval polynomial ensure the specified degree of robust stability

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

1 Citation (Scopus)


The paper presents an original algorithm to determine the intervals of characteristic polynomial coefficients, which ensure that the polynomial roots are located leftward to the vertical line, which specifies the robust stability degree. This algorithm is built in conditions that provide linking indexes of stability and oscillation with interval coefficients of the characteristic polynomial. The paper reviews application of the algorithm for determination of the interval settings in a robust PID-controller. The efficiency of the algorithm was tested by construction of localization regions of roots of the synthesized interval polynomial.

Original languageEnglish
Title of host publicationCACS 2014 - 2014 International Automatic Control Conference, Conference Digest
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Print)9781479945849
Publication statusPublished - 28 Apr 2014
Event2014 International Automatic Control Conference, CACS 2014 - Kaohsiung, Taiwan, Province of China
Duration: 26 Nov 201428 Nov 2014


Other2014 International Automatic Control Conference, CACS 2014
CountryTaiwan, Province of China


  • coefficient parameters of quality
  • degree of robust stability
  • interval characteristic polynomial
  • interval-parametric synthesis
  • robust controller

ASJC Scopus subject areas

  • Control and Systems Engineering

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