Samsung Heavy chooses STADT No-Loss Electric Propulsion
Samsung Heavy Industries Division PCSD, have ordered electrical propulsion system from STADT AS in Norway. It’s the patented STADT STASCHO No-Loss Drive system that now gets a foothold in the world’s largest shipbuilding nation.Samsung has together with the Incheon Port Authority of Korea increased focus on developing more sustainable propulsion technology for their ships. Reduction of CO2, NOx and fuel are important goals, together with a convert from oil to natural gas.
LNG electric is a sustainable solution.
This system enables to separate the power production from the propeller system. The LNG fed generators will operate with a rather steady load, quite independent of how much power used on the propeller. The propellers are driven by the robust STADT electric No-Loss drive system.
First of its kind in Korea
To utilize dual-fuel full electric propulsion in passenger ship is a new development now seen in Korea. The IPA Green ship is supposed to go in to service in the end of 2012, and is considered as a pilot project for green shipping technology for Korea.
Redundant drive technology from STADT.
The IPA Green ship will also benefit from the highly redundant drive technology from STADT, eliminating the risk of loss of propulsion to an absolute minimum. The AC drives are splitted in 3 segregated power units, so that only a part of the propulsion power will be lost in case of failures.
Increased interest for full-electric systems.
STADT have used the last 10 years on development of this No-Loss drive system, which is their 5. generation technology. With 25 years of experience within marine electro-technologic developments, it is pleasing to see that the work can give a global meaning to the environment, and at the same time make international shipping more sustainable and gives better payback for the ship-owners, says STADT director Hallvard Slettevoll. The product range is very comprehensive, covering propeller systems from 100 kW up to 100 MW in many voltage classes from 220 V up to 15 kV. No big power transformers are used in the STADT technology, saving a lot of space, weight and losses.
STEALTH AC – Disturbance free technology in World-Class.
One of many technological benefits with the new STADT-system is that it is completely free from any disturbances, such as electromagnetic interference- EMI, acoustic noise and vibrations. This is properties which has high value for any type of ships. But it has an even bigger impact in military projects, something that probably will be one of many growing markets for STADT’s technology internationally, according to Slettevoll.
AC-Technology improves reliability versus DC systems.
For many years STADT have seen that there are a direct link between unpredicted major failures and even explosions in drives that has a incorporated big DC capacitor system inside the drives.
These capacitors and low inductive DC switching circuits with minimal insulation creepage distances, often less than 1 millimeter at up to 1000 V DC , has represented a major part of the undesired faults, lead to limited lifetime and failure situation for those products.
In the STADT STASCHO drives, the use of DC capacitors is very much limited, and only used temporary – thus liminating those seen problems from past generations drives.
