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The practical stability of the discrete, fractional order, state space model of the heat transfer process. (English) Zbl 1440.93193

Summary: In the paper the practical stability problem for the discrete, non-integer order model of one dimensional heat transfer process is discussed. The conditions associating the practical stability to sample time and maximal size of finite-dimensional approximation of heat transfer model are proposed. These conditions are formulated with the use of spectrum decomposition property and practical stability conditions for scalar, positive, fractional order systems. Results are illustrated by a numerical example.

MSC:

93D05 Lyapunov and other classical stabilities (Lagrange, Poisson, \(L^p, l^p\), etc.) in control theory
93C20 Control/observation systems governed by partial differential equations
80A19 Diffusive and convective heat and mass transfer, heat flow