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

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

Active Publication Date: 2020-06-16
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 tracking error of the heading angle has performance requirements. The existing technology considers that the actual performance requirements of the ship heading control are less, and the use cost is high, which is not easy for engineering. accomplish

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

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Embodiment Construction

[0087] 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.

[0088] 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:

[0089] 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 specified performance control method and a fuzzy self-adaptive output feedback specified performance control system for an intelligent shipautopilot system, which belong to the technical field of ship automatic control. According to the fuzzy self-adaptive output feedback specified performance control method, an error conversion technology and a fuzzy state observer are applied to the intelligent ship autopilot system, so that the output feedback specified performance control problem of the intelligent ship autopilot system is solved, the known requirements of a controller on course angle change rate state information of the autopilot system are effectively reduced, and the course tracking speed and precision are improved.

Description

technical field [0001] The invention relates to the technical field of ship automatic control, in particular to a fuzzy adaptive output feedback designation performance 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 traj...

Claims

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Application Information

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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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