The University of Southampton
University of Southampton Institutional Repository

Robust global sliding model control for water-hull-propulsion unit interaction systems - part 1: system boundary identification

Robust global sliding model control for water-hull-propulsion unit interaction systems - part 1: system boundary identification
Robust global sliding model control for water-hull-propulsion unit interaction systems - part 1: system boundary identification
Unexpected severe hull deformation caused by the wave loads would significantly influence the dynamical behaviours of the propulsion system in large scale ships, resulting in degradation of the ship control performance. A new global sliding model control (GSMC) for marine water-hull-propulsion unit systems is proposed to obtain more accurate control performance in this paper. The GSMC was firstly employed to establish the marine propulsion control model with nonlinear uncertainties. In the GSMC model, the saturation function method is applied to eliminate chattering on the sliding surface. Then the Lyapunov stability criterion is adopted to confirm the stability of the control system. Following, for the first time, the boundary problem of the nonlinear model uncertainties were investigated quantitatively. The bounded nonlinear model uncertainties required in the proposed GSMC model, involving engine torque loss / variations, power transfer for various load conditions and shaft rotational speeds, were derived based on the experiments carried out on a marine shaft-line test-bed of the integrated propulsion system as well as a sea trial implemented for a running bulk carrier. An upper boundary of 1,85 % for the model uncertainty has been obtained, which would be introduced into the GSMC for the integrated marine propulsion system to derive the total control law realising the robust control of the system
1330-3651
209-215
Li, Zhixiong
321fab59-61c2-439c-9f0d-1da5caf33b18
Yan, Xinping
66cfd5ac-183c-4019-9983-fb7a06883f8c
Qin, Li
529689de-3315-4d13-a77c-a991f61390bd
Cheng, Kai
1ac65b10-016f-40ee-9ba8-3668b8425cf0
Xing, Jing
d4fe7ae0-2668-422a-8d89-9e66527835ce
Li, Zhixiong
321fab59-61c2-439c-9f0d-1da5caf33b18
Yan, Xinping
66cfd5ac-183c-4019-9983-fb7a06883f8c
Qin, Li
529689de-3315-4d13-a77c-a991f61390bd
Cheng, Kai
1ac65b10-016f-40ee-9ba8-3668b8425cf0
Xing, Jing
d4fe7ae0-2668-422a-8d89-9e66527835ce

Li, Zhixiong, Yan, Xinping, Qin, Li, Cheng, Kai and Xing, Jing (2015) Robust global sliding model control for water-hull-propulsion unit interaction systems - part 1: system boundary identification. Tehnički vjesnik, 22 (1), 209-215. (doi:10.17559/TV-20141208054126).

Record type: Article

Abstract

Unexpected severe hull deformation caused by the wave loads would significantly influence the dynamical behaviours of the propulsion system in large scale ships, resulting in degradation of the ship control performance. A new global sliding model control (GSMC) for marine water-hull-propulsion unit systems is proposed to obtain more accurate control performance in this paper. The GSMC was firstly employed to establish the marine propulsion control model with nonlinear uncertainties. In the GSMC model, the saturation function method is applied to eliminate chattering on the sliding surface. Then the Lyapunov stability criterion is adopted to confirm the stability of the control system. Following, for the first time, the boundary problem of the nonlinear model uncertainties were investigated quantitatively. The bounded nonlinear model uncertainties required in the proposed GSMC model, involving engine torque loss / variations, power transfer for various load conditions and shaft rotational speeds, were derived based on the experiments carried out on a marine shaft-line test-bed of the integrated propulsion system as well as a sea trial implemented for a running bulk carrier. An upper boundary of 1,85 % for the model uncertainty has been obtained, which would be introduced into the GSMC for the integrated marine propulsion system to derive the total control law realising the robust control of the system

Text
tv_22_2015_1_209_215.pdf - Other
Download (1MB)

More information

Published date: 2015
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 383099
URI: http://eprints.soton.ac.uk/id/eprint/383099
ISSN: 1330-3651
PURE UUID: 0ce7ab31-e1cc-407f-a4b6-9c5d55837be9

Catalogue record

Date deposited: 04 Nov 2015 16:58
Last modified: 08 Jan 2022 12:26

Export record

Altmetrics

Contributors

Author: Zhixiong Li
Author: Xinping Yan
Author: Li Qin
Author: Kai Cheng
Author: Jing Xing

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×