ALSTOM (UK) September 17-18, 2002DYNAMIC POSITIONING … · Date of last change Reference/Name of...
Transcript of ALSTOM (UK) September 17-18, 2002DYNAMIC POSITIONING … · Date of last change Reference/Name of...
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Date of last change Reference/Name of Presentation/SN 1
MTS DP Conference 2002
DYNAMIC POSITIONING CONFERENCESeptember 17-18, 2002
Control Systems
A Safer Ship to Ship DP ControlStrategy
Allan Meahan Chris BanniganALSTOM (UK)
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Date of last change Reference/Name of Presentation/SN 2
MTS DP Conference 2002
Slide 1 Slide 1 -- OverviewOverview
A Safer Ship To Ship DP Control StrategyA Safer Ship To Ship DP Control Strategy
•• The Problem or ChallengeThe Problem or Challenge
•• The SolutionThe Solution
•• Position Reference SystemPosition Reference System
•• DPDP Control System Mode Control System Mode
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Date of last change Reference/Name of Presentation/SN 3
MTS DP Conference 2002
Slide 2 Slide 2 -- Shuttle Tanker at Stern of FPSOShuttle Tanker at Stern of FPSO
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Date of last change Reference/Name of Presentation/SN 4
MTS DP Conference 2002
Slide 3 Slide 3 -- PSV Offloading at a TLPPSV Offloading at a TLP
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Date of last change Reference/Name of Presentation/SN 5
MTS DP Conference 2002
Slide 4 Slide 4 -- PSV Approaching SemiPSV Approaching Semi--SubSub
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Date of last change Reference/Name of Presentation/SN 6
MTS DP Conference 2002
Slide 5 Slide 5 -- Workboat / Target Vessel Movement RelationshipWorkboat / Target Vessel Movement Relationship
DP Workboat
Target Vessel
Fore
Aft
Port Starboard
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Date of last change Reference/Name of Presentation/SN 7
MTS DP Conference 2002
Slide 6 Slide 6 -- Workboat / Target Vessel Heading RelationshipWorkboat / Target Vessel Heading Relationship
Target Vessel
DP Workboat
RotationalMovement(headingchange)
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Date of last change Reference/Name of Presentation/SN 8
MTS DP Conference 2002
Slide 7 Slide 7 -- Relative GPS OperationRelative GPS Operation
UHF Link
CorrectionCorrection
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Date of last change Reference/Name of Presentation/SN 9
MTS DP Conference 2002
Slide 8 Slide 8 -- Solution OverviewSolution Overview
SolutionSolution
•• Suitable Position Reference SensorSuitable Position Reference Sensor
•• DP Control Mode DP Control Mode -- Ship/Mobile FollowShip/Mobile Follow
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Date of last change Reference/Name of Presentation/SN 10
MTS DP Conference 2002
Slide 9 Slide 9 -- CyScan CyScan -- Position Reference SystemPosition Reference System
� Laser Beam Fanned in Two Axes
� Stabilized Levelling Platform for Wave Motion Compensation and Elevation Tracking
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Date of last change Reference/Name of Presentation/SN 11
MTS DP Conference 2002
Slide 10 Slide 10 -- CyScan Located on PSVCyScan Located on PSV
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Date of last change Reference/Name of Presentation/SN 12
MTS DP Conference 2002
Target Vessel
ReflectiveTarget
Slide 11 Slide 11 -- Effects of LevellerEffects of Leveller
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Date of last change Reference/Name of Presentation/SN 13
MTS DP Conference 2002
Slide 12 Slide 12 -- Typical Target ConfigurationTypical Target Configuration
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Date of last change Reference/Name of Presentation/SN 14
MTS DP Conference 2002
Slide 13 Slide 13 -- North Sea North Sea -- Targets on TLPTargets on TLP
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Date of last change Reference/Name of Presentation/SN 15
MTS DP Conference 2002
Slide 14 Slide 14 -- North Sea North Sea -- Targets on TLPTargets on TLP
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Date of last change Reference/Name of Presentation/SN 16
MTS DP Conference 2002
Slide 15 Slide 15 -- Brazil Brazil -- Targets on SemiTargets on Semi--SubSub
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Date of last change Reference/Name of Presentation/SN 17
MTS DP Conference 2002
Slide 16 Slide 16 -- CyScan Operator InterfaceCyScan Operator Interface
ß
TARGET VESSEL
DP VESSEL
B pos
A pos
Cyscan
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Date of last change Reference/Name of Presentation/SN 18
MTS DP Conference 2002
Slide 17 Slide 17 -- CyScan Main Features CyScan Main Features
� Cyscan Main Features:-– Standalone System - providing relative position and
heading information to the DP operator – Data base of all target vessels visited– Pitch and Roll Compensation– Manual/Automatic tracking of targets– Single target or multiple target tracking– Simple to use operator interface
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Date of last change Reference/Name of Presentation/SN 19
MTS DP Conference 2002
Slide 18 Slide 18 -- Workboat / Target Vessel Relative HeadingWorkboat / Target Vessel Relative Heading
ß
TARGET VESSEL
DP VESSEL
B pos
A pos
Cyscan
� Pure Ship/Mobile Mode– Ship/Mobile Follow with Laser System
Only
� DP System Control Mode:-– Ship/Mobile Follow Mode
� Ship/Mobile Mode with reaction circle– Ship/Mobile Follow with Laser System
and DGPS system
ß
TARGET VESSEL
DP VESSEL
B pos
A pos
Cyscan
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Date of last change Reference/Name of Presentation/SN 20
MTS DP Conference 2002
COR
TARGET VESSEL
DP VESSEL
Slide 19 Slide 19 -- Workboat / Target Vessel Relative Heading ChangeWorkboat / Target Vessel Relative Heading Change
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Date of last change Reference/Name of Presentation/SN 21
MTS DP Conference 2002
Slide 20 Slide 20 -- Workboat / Target Vessel Relative HeadingWorkboat / Target Vessel Relative Heading
� Ship/Mobile Follow Mode features:-– Heading Deadband– Target Vessel Reaction Radius (operator selectable)– Target Vessel Heading Monitoring– Cyscan PME Icon (showing relative position and heading of
target vessel)– Position and Heading changes (as per standard)– Operator selection of Target heading
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Date of last change Reference/Name of Presentation/SN 22
MTS DP Conference 2002
Slide 21 Slide 21 -- Simple Simulation of Ship FollowSimple Simulation of Ship Follow