ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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8
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vol 63 / August, 2020
Article

DOI 10.17586/0021-3454-2015-58-9-701-706

UDC 681.51

SYNTHESIS OF CONTROL LAW PARAMETERS FOR NONLINEAR AUTOMATIC CONTROL SYSTEMS AT VARIOUS TYPES OF CHARACTERISTIC APPROXIMATION

V. F. Shishlakov
SUAI, Department of Control in Technical Systems; Professor


E. V. Anisimova
SUAI, Department of Control in Technical Systems; Assistant


A. V. Shishlakov
Scientific and Production Concern „Aurora“; Engineer-Programmer


D. V. Shishlakov
SUAI, Department of Electromechanics, Robototechnics, and Technical Physics;


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Abstract. A solution to the problem of synthesis of control law parameters for automatic control system is considered when characteristics of nonlinear elements are approximated by analytic and irrational functions. Inversion of direct variational analysis method (the generalized Galerkin method) is applied. Advantages of the viewed methods of nonlinearities approximation for ACS with smooth nonlinearities are demonstrated.
Keywords: analytical approximation, approximation by irrational functions, nonlinear characteristics, generalized Galerkin method