DP Knowledge for Technical Staff Course (DP Maintenance)

General overview of dp
Brief history of dp system development.
Theory of dp control; explanation of how the system positions the vessel; heading; feedback; wind; modelling, kalman filter, controllers and dp current etc.
Dp equipment classes as defined in imo guidelines and classification society rules.
The power system
Fuel systems
Cooling systems, fresh and sea water
Generators and main engines
Main generators
Main switchboard
Generators
Bus-tie requirements
Imo, class and fmea requirements
Electrical systems and cabling communications
Ups
Ac supplies
Dc supplies
Digital interface
Analogue interface
Serial interface
Power management system custom systems and imo dp equipment class 2/3 requirements
General system functions
Extra loads on switchboard with different operation, drilling, rov etc.
Extra redundancy required for working “drift on”.
The thruster system
Thruster control concepts
Thruster redundancy
Thruster supply change over
Thruster failure modes
Control systems and sensors
Processor(s)
Independent joystick system (ijs)
Peripherals
Printer
Change-over switch, manual controls/dp/joystick
Dp software
Alarms
Position reference systems; hardware software and sensors
Dgps/dgnss
Acoustic
Taut wire
Laser – cyscan
Laser – fanbeam
Laser – spottrack
Microwave – radius
Microwave – radascan
Microwave – artemis
Inertial navigation systems
Dp sensor systems
Gyro
Environment sensors – mru/vru
Dp operation and effects on dp system
environment sensors – wind sensor