@misc{Casagrande_Daniele_Fractional-order_2017, author={Casagrande, Daniele and Krajewski, Wiesław and Viaro, Umberto}, copyright={Creative Commons Attribution BY 4.0 license}, address={Warszawa}, journal={Raport Badawczy = Research Report}, howpublished={online}, year={2017}, publisher={Instytut Badań Systemowych. Polska Akademia Nauk}, publisher={Systems Research Institute. Polish Academy of Sciences}, language={eng}, abstract={This chapter deals with the additive decomposition of the forced response of a fractional-order system. Precisely, it is shown how, by solving a simple polynomial Diophantine equation, this response can almost always be decomposed into the sum of a system-dependent component and an input-dependent component. Simple conditions based on the classical Routh and Mikhailov criteria are provided to check the system input-output stability. Several examples show that the aforementioned decomposition can profitably be exploited to find simplified models in such a way that the asymptotic response is kept unchanged and, at the same time, the transient behaviour is well approximated. The decomposition proves useful also for solving the so-called model-matching problem that is of particular interest in controller synthesis.}, type={Text}, title={Fractional-order system forced-response decomposition and its application}, URL={http://rcin.org.pl./Content/144819/PDF/RB-2017-15.pdf}, keywords={Stability, Stabilność, Model reduction, Redukcja modelu, Steady–state response, Reakcja stanu ustalonego, Rational-order system, System racjonalnego porządku, Continuous-time system, System ciągły, Lti system, System lti, Polynomial diophantine equation, Wielomianowe równanie diofantyczne, Stability criteria, Kryteria stabilności, Transient response, Odpowiedź przejściowa}, }