GE Power Conversion A new direction for DP ecomagination
Dynamic positioning (DP) is a computer-controlled system used to maintain a vessel‘s position and heading by automatically activating propellers and thrusters to counteract the displacing effects of the external environment. Sensors provide information to the control system which incorporates a mathematical model of the vessel including information about the vessel’s dynamics, its machinery and its responses to environmental and other displacing forces.
The experience to redefine DP We know DP, deeply. Since the 1970’s we’ve built more than 800 systems, from joystick maneuvering and “simple” DP to multi-redundant DP and Thruster Assisted Mooring Systems (TAMS). Our technological range is coupled with front-line, hands-on expertise in all vessel types. No one is better positioned to develop the DP system you need. By applying our engineering intelligence, and understanding your maritime operations, we’ve evolved DP to the next level.
Unprecedented flexibility for effective maritime operations Putting the Operator in Control GE’s latest range of DP systems is a mariner-focused solution, enhancing situational awareness and rebalancing attention from system management to true seamanship. It delivers the following benefits: • Unprecedented flexibility for effective maritime operations. • An energy-efficient nautical system to reduce operational costs and emissions.
Features Benefits Intuitive graphic interface Easy to use – quick to learn for DP operators switching from other DP systems 26-inch touch sensitive multi-touch screen Reduced need for data processing by operator; increased focus on seamanship Configurable displays show data in clear and uncluttered form Easier and faster system navigation Operator/task specific information prioritization Improved focus on positioning the vessel rather than manipulating the control system Screen tilt angle adju
An energy-efficient nautical solution GE’s expertise in DP and in power and propulsion systems has prompted the development of DP capabilities which impact on fuel economy, emissions, machinery wear, and machinery maintenance (time/cost). Operational costs are reduced and overall system up time/availability may be increased. Mode Operation Energy Efficient Mode utomatic position and heading control.
Simulated drillship example of fuel usage and NOx emissions Wind speed (m/s) Fuel used in “Normal DP” (kg/hr) Fuel used in Energy Efficient mode - fixed heading (kg/hr) Fuel used in Energy Efficient mode - optimum head” (kg/hr) 5 947 835 834 10 966 852 848 15 1011 905 887 20 1115 1017 970 Weighted mean 971 860 854 Table 1: Simulated fuel usage at different wind speeds.
Published by EEP S.A. GE as a full system integrator Positioning DP in the Big Picture 8 At GE, we see the whole ship. That’s because we engineer and supply so much of it, from gas turbines and diesel engines to rotating machines, variable speed drives, drilling systems and automation and control. We power, propel and position the industry.
Tracking • Autotrack – High precision automatic tracking and heading control along a pre-defined track line using all selected thrusters. • Autosail – High speed automatic tracking and heading control along a pre-defined track using the main propulsion and steering system. • ROV Follow – Automatic tracking and heading control to follow a mobile beacon attached to an underwater vehicle or other object.
And more: A focus on availability We understand the vital importance of vessel availability—and our service focus keeps us actively engaged, both when things are going right, and when they go wrong.
By Kind Permission Seacor Marine LLC GE I A new direction for DP 11
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