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New offshore construction vessel for Toisa Ltd. powered by Siemens
Integrated drive system contributes to greater flexibility and efficiency
Power management system with integrated safety solutions
ensures a high
degree of availability
Ship designed for multipurpose offshore tasks
such as deep sea constructions
to depths of 3,500 meters
March 13, 2014 + + + On behalf of Hyundai Heavy
Industries Ltd. (HHI), the largest shipyard in the world located in Ulsan,
South Korea, the Siemens Drive Technologies Division is supplying an
integrated drive and power generation solution for a multipurpose offshore
construction vessel (MOCV). This MOCV is currently being built by HHI for
Toisa Ltd. and will be managed by Sealion Shipping Ltd, a global shipping
and support services company. It is to be used to perform a variety of
offshore duties including underwater installations to a maximum depth of
3,500 meters. The integrated Siship solutions from Siemens help to improve
the reliability and flexibility of the vessel and to reduce its fuel
consumption and therefore the overall running costs.
With this
new offshore construction vessel, Toisa will set new standards in terms of
flexibility and capacity. For example, the vessel is designed for a wide
range of offshore duties, including ultra-deepwater installations and
constructions for the oil and gas industry, the laying of undersea pipes
and cables or the control of remotely operated vehicles (ROV).
Consequently, the demands on the flexibility, efficiency and reliability
of the vessel are very high. For this reason, Siemens is providing
integrated solutions both for marine propulsion (Siship Drive LV) as well
as for on-board power generation (Siship Power MV). Siship Drive LV is a
diesel-electric drive solution featuring components that are optimally
tailored to the design of the vessel.
For example, the azimuth
thrusters, the retractable thrusters and the bow thruster are powered by
five 3.4 megawatt and two 2.5 megawatt motors combined with seven
marine-type Siship frequency converters. The converters are specially
designed for harsh operating conditions in terms of the temperatures,
vibrations and humidity levels prevalent on offshore vessels. The optimum
interaction of motors and converters contributes to a rapid reaction
capability of the different drives, thus increasing the flexibility of the
vessel and enabling precise maneuvering. Thanks to the integrated drive
system, a high level of motor performance and, consequently, a high degree
of efficiency are achieved.
The on-board power supply system is fed by
six diesel generators, each with an output of four megawatts. As the
generator output is continuously adapted to the actual energy demand, a
significant reduction in fuel consumption is achieved, especially
considering the fluctuating operation profile of a multipurpose offshore
construction vessel. The power management system also supplied by Siemens
ensures a stable generation of electricity so that the necessary power can
be made available everywhere and anytime. As additional safety solutions,
power protection functions are integrated in the switchgear. They detect
critical operating states and protect or isolate the relevant generator
from the supply system before any damage can occur. The power management
system also enables electrical power generation to be resumed
automatically after any failures. The main switch panels for the primary
distribution network also originate from Siemens.
In addition to
delivering the drive and power generation system, Siemens is also
responsible for the project management, the engineering and the
commissioning of the entire diesel-electric drive system. All systems and
components used are part of the Siemens "Siship" solution platform.
+ + +
The
Siemens Industry Sector (Erlangen, Germany) is the world's leading
supplier of innovative and environmentally friendly automation and drive
technology, industrial software and technology-based services. The
Sector's comprehensive portfolio covers the entire industrial value chain,
from product design, engineering and production to services. Siemens
enhances its customers' productivity, efficiency, and flexibility in a
wide variety of different industries. With a global workforce of more than
100,000 employees, the Industry Sector comprises the Divisions Industry
Automation, Drive Technologies and Customer Services as well as the
Business Unit Metals Technologies. For more information, visit
http://www.siemens.com/industry
Source: Stefan Rauscher - Siemens AG
Drive
Technologies Division
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