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Fuzzy self-adaptive output feedback finite time control method and system of intelligent ship autopilot system

A fuzzy self-adaptive, time-limited technology, applied in non-electric variable control, two-dimensional position/channel control, control/regulation system, etc., which can solve the problems of high use cost and difficult engineering implementation.

Inactive Publication Date: 2020-06-02
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 finite time control method and system of intelligent ship autopilot system
  • Fuzzy self-adaptive output feedback finite time control method and system of intelligent ship autopilot system
  • Fuzzy self-adaptive output feedback finite time control method and system of intelligent ship autopilot system

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Embodiment Construction

[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 an adaptive fuzzy optimal control method for an intelligent ship autopilot system, specifically comprising the following steps,

[0083] The first step is to transmit the collected course information to the shipboard computer. The shipboard computer considers the ...

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Abstract

The invention provides a fuzzy self-adaptive output feedback finite time control method and a fuzzy self-adaptive output feedback finite time control system for an intelligent ship autopilot system, which belong to the technical field of ship automatic control. The fuzzy self-adaptive output feedback finite time control method aims at the intelligent ship autopilot system, utilizes a fuzzy state observer and an auxiliary design system to solve the output feedback limited time control problem of the intelligent ship autopilot system with a limited input rudder angle, effectively reduces the known requirements of the controller for course angle change rate state information of the autopilot system, and improve the course tracking speed and precision.

Description

technical field [0001] The invention relates to the technical field of ship automatic control, in particular to a fuzzy self-adaptive output feedback finite time control method and system for an intelligent ship autopilot system considering the limited rudder angle. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/0206
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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