Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A control method for ship rudder roll reduction

A technology of rudder anti-roll and control method, which is applied to the equipment to reduce the motion of the ship, the equipment to increase the stability of the ship, the parts of the ship, etc. It can solve the problem that the nonlinearity and parameter uncertainty of the model cannot be effectively handled.

Inactive Publication Date: 2016-09-14
HARBIN ENG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional PID and LQG control algorithms cannot effectively deal with model nonlinearity and parameter uncertainty.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A control method for ship rudder roll reduction
  • A control method for ship rudder roll reduction
  • A control method for ship rudder roll reduction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] Such as figure 2 As shown in , the roll angle signal output by the ship roll motion model is input to the high-gain observer, The input signal of the high-gain observer also includes the rudder angle signal actually output by the steering gear. The high-gain observer outputs the roll angular velocity signal and feeds it to the analytical model predictive controller; the analytical model predictive controller outputs the command rudder angle signal to realize ship rudder roll reduction. The roll angle signal output by the ship roll motion model is fed back to the analytical model predictive controller, and the input signal of the analytical model predictive controller also includes a desired roll angle command.

[0077] In the present invention, the improved analytical model predictive controller of ship rudder anti-rolling system receives expected roll angle information, high-gain observer information and system output roll angle information obtained by compass, outpu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a ship rudder rolling-reducing control method. The method is characterized by including performing mathematical description of ship rudder rolling reducing motions; inputting rolling angle signals output by a ship rolling model to a high gain observer; inputting rolling angular velocity signals output by the high gain observer to an analytic model predictive controller in a feedback manner; allowing the analytic model predictive controller to output command rudder angle signals, and realizing ship rudder rolling reduction.

Description

technical field [0001] The invention relates to the fields of ship engineering, control science and control engineering, in particular to a control method for reducing roll of a ship rudder. Background technique [0002] Due to the small damping of the rolling motion of the ship, the ship will produce severe rolling in the wind and waves. Excessive rolling will have a great impact on the navigation performance and safety of the ship. In order to ensure the safe navigation of the ship in complex sea conditions, As a new control idea, rudder anti-rolling technology has received great attention in recent years, and the design of anti-rolling device with rudder is simple, convenient and cheap. Therefore, rudder anti-rolling technology is an important part of the ship motion control field an important research topic. Ship motion is nonlinear in nature. From the ship motion environment and its own motion characteristics, it is difficult to obtain an accurate mathematical model, r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B63B9/08B63B39/00
Inventor 彭秀艳贾书丽于亚坤孙涛王显峰
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com