A Frequency criterion for analysis of stability of systems with fractional-order derivatives

: pp. 389–399
Received: May 11, 2020
Accepted: September 04, 2020
Lviv Polytechnic National University
Lviv Polytechnic National University
Lviv Polytechnic National University
Lviv Polytechnic National University

Based on an analysis of the influence of the roots of a characteristic polynomial on the increment of the argument of the frequency characteristic of the system, the frequency criterion of stability of a system with fractional-order derivatives has been suggested.  The boundaries of the zone of location of the roots of the characteristic polynomial of a stable system have been determined in a complex plane when the index $\alpha$ of the basis of the characteristic polynomial changes.

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Mathematical Modeling and Computing, Vol. 7, No. 2, pp. 389–399 (2020)