Stabilization of a ROV in Three-dimensional Space Using an Underwater Acoustic Positioning System

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Abstract

In subsea applications there are an increasing demand for Remotely Operated Vehicles (ROV’s). This study examines a BlueROV2 inspection ROV prototype for autonomous operation in three-dimensional space. This study describes the ROV modelling, identification, control development and closed-loop simulations and experiments. The main transmitter applied for the navigation is an Underwater Acoustic Positioning System (UAPS) which acts as an underwater GPS unit. The transmitter introduces a dominant output time delay which is handled by a smith predictor. The results show that the smith predictor does not handle the time delay well, probably because the time delay is time-variant. Online identification of the time delay is proposed as a potential solution for minimizing the impact of the time delay variations over time.
Original languageEnglish
Book seriesIFAC-PapersOnLine
Volume52
Issue number17
Pages (from-to)117-122
Number of pages6
ISSN1474-6670
DOIs
Publication statusPublished - 2019
Event7th IFAC Symposium on System Structure and Control SSSC 2019 - Sinaia, Romania
Duration: 9 Sep 201911 Sep 2019

Conference

Conference7th IFAC Symposium on System Structure and Control SSSC 2019
CountryRomania
CitySinaia
Period09/09/201911/09/2019

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Keywords

  • Time delay
  • Mathematical modeling
  • Subsea control
  • ROV
  • Offshore robotics

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