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STADT No-Loss Electric Propulsion Systems for Ships

STADT AS develops integrated electric propulsion systems and AC drives for marine vessels. The company’s latest product is the STADT Lean Drive innovative electric propulsion system

In December 2015, STADT celebrated its 30th anniversary in the maritime technology sector, and moved to its modern maritime centre in Gjerdsvik, Norway.

Approximately 31 ships in different categories were using the STADT Lean Drive technology by the end of 2015.

Marine drives for electric propulsion systems

The STADT Lean Drive electric propulsion system is the company’s fifth generation of its electric propulsion systems for ships. Available in models from 100kW to 80MW, the system features low and medium voltages up to 15kV.

The system minimises fuel consumption and reduces CO₂, SOx, and NOx pollution. It also performs silently without any electric disturbances.

STADT Lean Drive for propulsion systems

The STADT Lean Drive electric propulsion system is the product of four years of research and development.

Company director Hallvard Slettevoll describes the new system as a ‘breakthrough in technology’, because it combines the unique features of pure sinusoidal electric power for the main switchboard, electric motors and other electric consumers while minimising space occupation and cost.

Sinusoidal waveform on current and voltage protects sensitive electronic equipment from interference by inverter drives, such as echo sounders, radars, and seismic research instrumentation. It also minimises noise produced by electric motors and drives and guarantees protection from bearing damages.

This gives STADT’s system an edge over other well-known electric drives suppliers, who have supplied systems with a high degree of electric noise / pollution in their main switchboard grids, as well as EMI (EMC) to the surroundings.

In collaboration with Swedish company NFO Drives, STADT aims to create unique solutions using sinusoidal pure electric power. NFO and STADT have patented the sinus technology.

Noise-free and space-saving electric propulsion system

Since large propulsion transformers are not required, the STADT Lean Drive propulsion system saves space and achieves a total harmonic distortion (THD) level of less than 2%.

Sustainable and robust technology

STADT Lean Drive is extremely reliable and offers a long lifespan of 30 years or more.

This durability is achieved by using fewer components in the drive system, as well as different parallel technologies that are redundant to each other.

System integration

STADT has extensive experience in system design and integration for different kinds of ship projects.

Our broad range of system components, in different types of technologies, enables us to design optimum solutions for each individual project.

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Press Release

STADT Signs Contract with SAAB

STADT has signed a contract with Swedish defence and security firm Saab.

White Papers

The Guideline to Electric Propulsion

Electric propulsion is a natural choice for a lot of different ship types, and there are many reasons why this solution is so popular. Fuel savings, emission reductions, ECA regulations, redundancy, reduced noise and vibration, low maintenance, space utilisation, battery storage, and the use of LNG-electric propulsion are just some of the reasons to choose electric propulsion.

Address
STADT AS

Moljevegen 50

N-6083 Gjerdsvika

Norway

+47 7002 5800 www.stadt.no STADT Lean Propulsion on YouTube

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Related Projects



Press Release

22 October 2018

STADT has finalised installation of the Lean Propulsion system on the megayacht White Rabbit, built at Echo Yachts in Perth Australia.

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9 April 2018

Topaz Master and Topaz Mariner vessels have become customers of STADT.

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7 March 2018

Hurtigruten is connecting to shore supply in Bergen with a 1,400kW STADT ShoreCon 50/60Hz, developed and made by the company.

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15 January 2018

During the last Work Boat Show in New Orleans, US, STADT signed an agreement with WA Technical Sales Inc to represent the company in the Gulf of Mexico area.

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2 June 2017

STADT has signed a contract with Swedish defence and security firm Saab.

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11 December 2015

After some years of preparation, STADT has moved into a new maritime centre in Gjerdsvika, Norway.

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17 August 2015

The Turkish shipyard Cemre has delivered the first of two seismic support vessels, on time.

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20 April 2015

STADT AS has been granted the Kongsberg Maritime AS contract to provide their awarded No-Loss AC drive system for a 84 metre Superyacht, which will be built by ECHO YACHTs in Australia.

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21 April 2010

A new technology for speed and power control of larger machinery operated via AC motor drives has been introduced to the shipping market. The patented STADT STASCHO Sinus drive technology was first delivered to the seismic research vessel “Sanco Star “of Norway, operated by RXT. In this case th

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15 March 2010

A new technology for speed and power control of larger machinery operated via AC motor-drives has been launched to the shipping market. To find out more, please download our free White Paper.

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24 August 2009

STADT, a specialist in AC drives and integrated electric propulsion systems for ships, has uploaded a free white paper about its new STADT Stascho low-loss electric propulsion system. STADT Stascho utilises sinus technology rather than the widely used PWM, and this completely eliminates electroma

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25 January 2009

A new technology for speed and power control of bigger machinery operated via AC motordrives has been launched to the shipping market. The patented drive technology was first delivered to the seismic research vessel MS Sanco Star of Norway. In this case the drives was used for the main ele

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Regional Offices

STADT AS

Moljevegen 50

N-6083 Gjerdsvika

Norway

+47 7002 5800 www.stadt.no STADT Lean Propulsion on YouTube
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