Fuzzy self-adaptive output feedback control method and system for intelligent ship autopilot system

A fuzzy self-adaptive, output feedback technology, applied in the direction of self-adaptive control, general control system, control/regulation system, etc., can solve the problems of high use cost and difficult engineering implementation, and achieve the effect of reducing dependence, improving speed and accuracy

Active Publication Date: 2022-02-11
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

However, in practical engineering applications, the rudder angle change information of the ship heading system is mostly unknown, and the input of the rudder angle is bounded. The existing technology considers that the actual performance of the ship heading control is less demanding, and the use cost is high, which is not easy to realize in engineering.

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  • Fuzzy self-adaptive output feedback control method and system for intelligent ship autopilot system
  • Fuzzy self-adaptive output feedback control method and system for intelligent ship autopilot system
  • Fuzzy self-adaptive output feedback control method and system for intelligent ship autopilot system

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[0081] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0082] Such as figure 1 , figure 2 As shown, the present invention discloses a fuzzy adaptive output feedback control method of an intelligent ship autopilot system, comprising the following steps:

[0083] S1. The collected heading information is transmitted to the shipboard computer. The shipboard computer considers the nonlinear charact...

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Abstract

The invention provides a fuzzy self-adaptive output feedback control method and system for an automatic rudder system of an intelligent ship, which belongs to the technical field of automatic control of ships. The method is aimed at the automatic rudder system of an intelligent ship, using a fuzzy state observer and designing according to the rudder angle saturation characteristic model The auxiliary system solves the problem of output feedback control of the intelligent ship autopilot system with limited input rudder angle, effectively reduces the controller's need for the known state information of the course angle change rate of the autopilot system, and improves the course tracking speed and accuracy.

Description

technical field [0001] The invention relates to the technical field of ship automatic control, in particular to a fuzzy self-adaptive output feedback control method and system of an intelligent ship autopilot system. Background technique [0002] Ship motion has the characteristics of large time lag, large inertia, and nonlinearity. Changes in speed and loading lead to parameter perturbation problems in the control model. Changes in sailing conditions, interference from environmental parameters, and inaccurate measurements all make ship heading control difficult. The system creates uncertainty. Faced with the problems caused by these nonlinear uncertainties, intelligent algorithms emerged as the times require, and have been continuously applied in the field of ship heading control, such as adaptive control, robust control, fuzzy adaptive control, iterative sliding mode control, and least parameter learning methods Wait. At present, most ship heading trajectory tracking des...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 李铁山朱丽燕单麒赫陈俊龙肖杨左毅武越
Owner DALIAN MARITIME UNIVERSITY
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