Sophisticated electrical propulsion system for world’s first biogas ferry

The ferry will enter into service in September 2014

The Samsø Færgen, a new 100m-long, double-ended passenger/car ferry, currently under construction at Remontowa Shipbuilding at its Gdansk shipyard for Denmark’s Samsø Municipality, is expected to become the first ferry to operate on locally supplied biogas.

Due to enter into service in September 2014 on domestic routes between the island of Samsø and Hou on the Danish mainland, the eight-deck DNVGL-classed vessel offers space for up to 600 passengers and 160 cars

The automation, navigation, communications and electrical propulsion facilities will be supplied by L-3 Marine Systems International.

The NACOS Platinum integrated navigation system, to be supplied by L-3 MSI’s Lyngsø Marine division, comprises S- and X-band radars linked to a series of five multipilot multifunction consoles and associated conning units for control of all main radar, ECDIS, automatic steering and voyage planning functions. Subsidiary sensors consist of AIS, VDR, DGPS, Doppler logs, echosounders, gyros, rudder steering and indicators, wind/weather navaids and BNWAS.

L-3 MSI’s SAM Electronics division is providing the ferry’s complete electrical propulsion system.

The vessel will be equipped with four 850 kW azimuth thrusters, each driven by an asynchronous engine and a speed-controlled, low-voltage PWM (pulse-width modulation) converter featuring the latest active front-end technology. Its power generation configuration will include the installation of two 690 V, 60 Hz propulsion switchboards, four gensets, including 1,275 kVA synchronous generators, and dual-fuel diesel/LNG engines.

The vessel’s control system is completed by L-3’s MCS Platinum automated monitoring and control system, with approximately 4,000 data inputs remote controlled from several onboard computer workstations, as well as emergency shutdown and DNV-approved LNG cargo control systems.

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