Kontaktujte nás | Jazyk: čeština English
Název: | The Nyquist criterion for LTI time-delay systems |
Autor: | Pekař, Libor; Matušů, Radek; Dostálek, Petr; Dolinay, Jan |
Typ dokumentu: | Článek ve sborníku (English) |
Zdrojový dok.: | Recent Researches in Automatic Control - 13th WSEAS International Conference on Automatic Control, Modelling and Simulation, ACMOS'11. 2011, p. 80-85 |
ISBN: | 978-1-61804-004-6 |
Abstrakt: | This paper extends results about stability and stabilization of a retarded quasipolynomial obtained using the Mikhaylov criterion earlier. Retarded quasipolynomials appear as numerators and denominators of linear time-invariant time-delay systems (LTI-TDS). A LTI-TDS system of retarded type (destitute of distributed delays) is said to be stable if all roots of its characteristic quasipolynomial are located in the open left-half complex plane. The contribution transforms the formulation of spectrum assignment of a characteristic quasipolynomial into the language of the Nyquist criterion for the open loop of a control system. Again, the argument principle is utilized to derive generalized Nyquist criterion for LTI-TDS. Stability measures related to the criterion are discussed with the specifications for LTI-TDS. An illustrative example is presented to illuminate the results. |
Plný text: | http://www.wseas.us/e-library/conferences/2011/Lanzarote/ACMOS/ACMOS-12.pdf |
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