Digital Stabilization System

Authors

  • Aleksandr Ablesimov National Aviation University, Kyiv
  • Tatyana Zhmurchyk National Aviation University, Kyiv
  • Andrei Rud National Aviation University, Kyiv
  • Arthur Tsoba National Aviation University, Kyiv

DOI:

https://doi.org/10.18372/1990-5548.67.15589

Keywords:

ship, stabilization system, course, Z-transformation, quantizer, extrapolator, controller, correction, discrete transfer function

Abstract

A model of a discrete system for stabilizing the ship's course has been developed and the results of research on the choice of an optimal digital controller for it are presented. The method of the describing function is used as a research method. In developing a mathematical model of a discrete system, a typical block diagram of a continuous stabilization system was used. The location of the quantizer and extrapolator in it was determined. The latter was selected as a zero-order extrapolator, as the simplest, easily implemented with standard equipment, although the use of a first-order extrapolator can give some advantage in the accuracy of information recovery. Modeling is carried out in state variables and in a classical way based on a discrete transfer function of stabilization system. For the research, the package of visual block simulation modeling of the MatLab matrix system was used. Modeling of the system of stabilization with different types of controllers allowed to carry out their comparative assessment. To improve the properties of the digital proportional integral derivative controller, it is proposed to introduce in it a correction system.

Author Biographies

Aleksandr Ablesimov, National Aviation University, Kyiv

Aviation Computer Integrated Complexes Department

Candidate of Science (Engineering). Professor

Tatyana Zhmurchyk , National Aviation University, Kyiv

Aviation Computer-Integrated Complexes Department

Student

 

Andrei Rud , National Aviation University, Kyiv

Aviation Computer-Integrated Complexes Department

Student

Arthur Tsoba , National Aviation University, Kyiv

Aviation Computer-Integrated Complexes Department

Student

References

O. K. Ablesimov, E. E. Alexandrov, and I. E. Alexandrova, Automatic control of moving objects and technological processes. Kharkov: NTU “KhPI”, 2008, 443 p. (in Ukrainian).

A. K. Ablesimov and M. A. Pylypenko, “The optimum regulator for the nonlinear stabilization system of the inertial control object,” Electronics and control systems. Kyiv: NAU, no. 1(55), pp. 29–35, 2018. https://doi.org/10.18372/1990-5548.55.12747

Yu. N. Sokolov, Computer analysis and design of control systems, Kharkov: KhAI, 2010, 343 p. (in Ukrainian).

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Published

2021-05-12

Issue

Vol. 1 No. 67 (2021)

Section

AUTOMATION AND COMPUTER-INTEGRATED TECHNOLOGIES

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