MULTIOBJECTIVE SYNTHESIS OF TWO DEGREE OF FREEDOM NONLINEAR ROBUST CONTROL BY DISCRETE CONTINUOUS PLANT

The method of accuracy improving and uncertain plant parameters sensitivity reducing based on multiobjective synthesis of two degree offreedom nonlinear robust control by discrete-continuous plant is developed. Synthesis of nonlinear robust regulators and nonlinear robust observers reduces to Hamilt...

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Bibliographic Details
Published in:Tehnìčna elektrodinamìka Vol. 2020; no. 5; pp. 10 - 14
Main Authors: Kuznetsov, B.I., Nikitina, T.B., Bovdui, I.V.
Format: Journal Article
Language:English
Published: Kiev Institute of Electrodynamics of National Academy of Sciences of Ukraine 01.09.2020
Subjects:
Dynamic characteristics
Mathematical models
Modelling
Multiple objective analysis
Nonlinear control
Nonlinear programming
Parameter sensitivity
Parameter uncertainty
Performance indices
Regulators
Robust control
Synthesis
ISSN:1607-7970, 2218-1903
Online Access:Get full text
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Summary:The method of accuracy improving and uncertain plant parameters sensitivity reducing based on multiobjective synthesis of two degree offreedom nonlinear robust control by discrete-continuous plant is developed. Synthesis of nonlinear robust regulators and nonlinear robust observers reduces to Hamilton-Jacobi-Isaacs equations solution. The robust control target vector is choiced by multicriterion nonlinear programming problem solution in which the objective function vectors is direct indexes performance vector that are presented to the system in various modes of its operation. The robust control target vector calculated by synthesized nonlinear robust control system modeling for various modes of system operation with different input signals and for various plant parameters values. The dynamic characteristics modeling end experimental researching results of a synthesized nonlinear electromechanical servo system for system operation various modes with different input signals and for plant parameters various values are given. References 8, figure 1.
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ISSN:1607-7970
2218-1903
DOI:10.15407/techned2020.05.010