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

A technology of fuzzy self-adaptation and output feedback, which is applied in the direction of self-adaptive control, general control system, control/regulation system, etc., and can solve the problems of high cost and difficult engineering implementation

Active Publication Date: 2021-05-11
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 tracking error of the heading angle has performance requ

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

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Embodiment Construction

[0089] 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.

[0090] Such as figure 1 As shown, this embodiment discloses a fuzzy adaptive output feedback designation performance control method for an intelligent ship autopilot system, including the following steps:

[0091] S1. The collected heading information is transmitted to the shipboard computer. The shipboard computer considers the nonlinear ch...

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Abstract

The invention provides a fuzzy adaptive output feedback specified performance control method and system for an intelligent ship autopilot system, and belongs to the technical field of ship motion intelligent control. For the intelligent ship autopilot system, a saturated nonlinear model is adopted, limited input signals are processed, and an error conversion technology and a fuzzy state observer are applied; the problem of output feedback specified performance control of an intelligent ship autopilot system is solved, the known requirement of a controller for autopilot system course angle change rate state information is 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): G05B13/04
CPCG05B13/042Y02T90/00
Inventor 李铁山朱丽燕单麒赫陈俊龙肖扬左毅
Owner DALIAN MARITIME UNIVERSITY
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