REVIEW ARTICLE


Disturbance Observer Based Heave Compensation Control for Benthic Coring Drill



Y. Guo*, 1, 2, Y.P. Jing1, M. Jiang1, B.W. Luo1
1 Engineering Research Centre of Advanced Mining Equipment, Ministry of Education, Hunan University of Science and Technology, HuNan Xiangtan 411201, China
2 Key Laboratory of Lightweight and Reliability Technology for Engineering Vehicle, Education Department of Hunan Province, Changsha University of Science & Technology, HuNan Changsha 410004, China


© 2013 Guo et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Engineering Research Centre of Advanced Mining Equipment, Ministry of Education, Hunan University of Science and Technology, HuNan Xiangtan 411201, China; Tel: +86-15974184466; Fax: +86-0731-58290624; E-mail: gy012702@163.com


Abstract

Severe environment in deep ocean affects operating reliability and security of coring drill. Adopting heave motion signal measured by accelerometer to confirm heave compensation of coring drill, the compensation control method is proposed using disturbance observer to restrain the disturbance. Then, the disturbance observer is designed. The heave motion simulation for coring drill is done with this control method, and the results show that the heave motion compensation control of coring drill using disturbance observer avoids the disturbance with high tracking quality, and provides high reliability and security to coring drill operating.

Keywords: Coring drill, disturbance observe, heave motion, hydraulic system, path tracking, winch.