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ELECTRIC POWERSOLUTIONS FOR HYBRID

PROPULSION

Marine & Offshore

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Our proven experience to satisfy every custom solutions for marine propulsion and on boardgeneration allow us to invest in innovation and develop new solutions which take into account

both our costumers requirements and eco efficiency needs.

The hybrid solution marks the beginning of a new phase in marine propulsion history.It guarantees CO2 zero emissions, agility in manoeuvres at low speed, silent shipping ininland sea without needing a separate on board generator to supply on board equipment.

With zero emission electric power it is possible to reach the desiderableadvantages useing only the electrical propulsion.

Electric Propulsion ExperienceLeading the way to innovation: hybrid propulsion system

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Large cities represent areas of intense concentration in activities. These activities are the origin ofthe principal causes of environmental change both in a local and in a global perspective.

Transportation is certainly one of the primary contributors to environmental pollution.

Working in partnership with local passenger transport company A.C.T.V (Azienda ConsorzioTrasporti Veneziano) we have developed and realized the dream of E1 boat, a new waterbus whichcomplies with Z.E.B (Zero Emission Boat) program. The E1 boat carries 200 people throught theCanal Grande, reducing pollution emissions, noises and vibrations, guaranteing maximum comfortof the passengers, reducing the risk of erosion by wave wash - generated by ships - on Venice’s

historic buildings.

E1 vessel is based on an hibryd electric propulsion system with batteries, asynchronous AC motor(60 kW a 1300 rmp), variable frequency inverter. This combination represents the best solution

because asynchronous AC motor is characterized by less weight, less manteinace requirementsand costs, more reliability compared to a DC motor.

Hybrid Propulsion ExperienceSHOWCASE: E1 zero emission boat for Venice Laguna

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LIUTO (Low Impact Urban TransportOmnibus) research project consisted of acollaborative venture between six partnersfrom three European countries. Based on E1vessel’s project it is defined as a LowEmission Boat (L.E.B). This hybrid propulsionvessel have been conceived in order tooptimize E1 vessel’s performance.

ACTV identifies its requirements for a new vessel’s performance in view of two differentconditions:

• in the narrow, shallow waters of the Venetian canal system;• in the open water of the lagoon or “Lido”;

The aim was to develop a new model that would produce minimum wave wash, achievingoptimal performance in terms of energy efficiency and manoeauvability.Moreover this solutions will provide to preserve from the wear of time the historic buildingsof Venice for the next years.

Hybrid Propulsion ExperienceSHOWCASE: Low emission boat for Venice Laguna

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Venice’s water traffic legislationpermits only two speed - slowin the canals and faster in openwater.In order to optimize vessel’sperformance our project wasfocused on engineering ahybrid diesel-electric system.

The hybid system optimizesthe boat’s performance at bothspeeds, permitting a switchfrom diesel when operating inopen waters to electricpropulsion in the canals.

The vessel’s prototypes speed performance

Low Emission Boat for Venice LagunaOptimizing Vessel Performance

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Scope of Supply:

3-phase synchronous electric generator, with excitation currentcontrol by AVR;

3-phase rectifier;

Batteries stack (high charge/discharge rate; e.g.NI-Cd; suppliedby a third part);

Power management and battery charge control; Inverter unit;

3-phase asynchronous electric motor;

Interface mechanical coupling with the propulsion system driveshaft;

Advantages: Optimized Power Generation Management, High dynamic performance, Excellentmanoeuvrability, Lower CO2 emissions, Reduces space requirements and more cargo capacity,Minimum maintenance requirement, Reduced fuel consumption, Significantly lower noise level.

25% less CO2 emissions, 50 % less polluting agents

Low Emission Boat for Venice LagunaScope of Supply

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Low Emission Boat for Venice LagunaVessel single line diagram

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Auxiliary inverter: all the ship services are fed by thebatteries via a 230VAC auxiliary inverter. In case of a failureof the inverter a by-pass supply through a feeding linecoming from the diesel generator is provided.

Emergency electric propulsion motor: asynchronousthree phase squirrel cage motor self ventilated, 11 kW 440VAC 870 rpm, in case of failure either in the main inverter orin the main electric propulsion motor the system is equippedwith a take-home emergency motor with star/delta starte

Main electric propulsion motor: asynchronous threephase squirrel cage motor self ventilated, 90 kW 290 VAC1800 rpm

Main inverter: IGBT based voltage source PWM inverterwith vectorial control, it features power regeneration tobatteries

Batteries: lead-acid with gelified electrolite, theconfiguration two battery packs (12 volt 55 Ah/5h, 480 Volt e110 Ah/5h total) connected in parallel.

DC rectifier / Battery charger: when the network voltage ispresent the rectifying unit charges the batteries and suppliesthe main and auxiliary inverters

Diesel generator set: it is done by one direct injectionengine coupled with a self-ventilated sinchronous generatorwith brushless excitation

Emergency motor: 675x432x330 LxWxH mm, 130 kg

Main motor: 1080x740x520 LxWxH mm, 590 kg

Auxiliary inverter: 600x500x1100 LxWxH mm, 120 kg,450x550x800 LxWxH mm, 200 kg

Main inverter: 600x600x1200 LxWxH mm, 350 kg,800x600x1200 LxWxH mm, 350 kg

Battery module: 617x363x275 LxWxH mm (2 modulesin total), 100 kg

Battery charger: 800x600x1100 LxWxH mm, DCrectifier, 350 kg

Diesel generator set: 3000x1000x1500 LxWxH mm,2300 kg

L.I.U.T.O: System ComponentsMain Characteristics, weight and dimensions

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The first Zero Emission Mode motor yacht over 20 metres

Hybrid Propulsion PropulsionZero emission Mode Yacht for Ferretti Groups

We have combined our expertise and our Skillswith Ferretti Group, one of the world leaders indesign, construction and sale of luxurymotoryachts.

The result of this union was the culmination ofa dream, the first hybrid yacht over 20 feet longThat Produces negligible tailpipe emissions.

The yacht is a 75-foot tri-deck that has a ahybrid propulsion system. When running ondiesel and cruising at eight knots it emits 10kilograms of carbon dioxide for each nauticalmile. The engine charges a battery pack thatcan also power the boat. In this diesel-electricmode, it emits less than half a kilogram eachnautical mile.

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Advantages: the innovative hybrid propulsion combines the reliability of the traditional diesel, which whenselected transmits power directly to the propellers, with the ability to cruise in Zero Emission Mode.The motors are powered by a pack of Lithium ion batteries: the most advanced technology in this field.

Scope of Supply:

n. 2 Inverter GT 5000 (*), IGBT technology;Control: digital display 24 bit – MC5200;Electronic circuit: SMDRated current: 350 A in classe 2;Rated power: 240 kVa @ 400 Vca classe 2;Protection: IP00;water cooling max 35°CComunication: SERIAL rs 485 with protocol Modbus &Profibus;Motor sensorless control system

(*) supplied by Answer Drives

Hybrid Propulsion PropulsionZero emission Mode Yacht for Ferretti Groups

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Placed at the centre of the engine room with the two main diesel traction motors, togetherwith the BMS (Battery Management System) which monitors the status and operation of thebatteries, the Control System represents “the heart” of the Hybryd Drive System and servicesonboard.

The Company developed aspecial algorithm that allowssensorless control of thesynchronous motor.The torque / speed controlof the two motors isensured by the two voltage-impressed, liquid-cooledinverters fed by the tractionbatteries.

Inverter System

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Input Power:Positive/negative - Battery: 360-750Vdc 350Aearthing

Output frequency:Motor phases D: 400A, 250Vac,max ( 250Vac x 1,4142 = 350< 360 Vdc), max333HzMotor phases S: 400A, 250VacUPS/CB: 5A, 230V, 50Hz earthing, accessories

Terminal XM4:1-2/ 24VDc3-4/ 0VDc5-6/ Minimum coil ( 30Vdc) Battery stop switch

Cooling liquid tubes:In-Out: flow 12,5 l/min Inverter 1In-Out: flow 12,5 l/min Inverter 2In-Out: flow 12,5 l/min UPS/CB

Left Side Inverter GTWS240YS, Terminal XM2B1/ 24 Vdc power supply 2,5A2/ 0 Vdc power supply 2,5°3-4/ Inverter contact: DE5-6/ Gear Inverter contact (from Hardware)7-8-9/ Contact heat exchange cooler pad, T=50°C(9 common – 8 NO: closed T< =50°C)10-11/ minimum coil ( 30Vdc) generator sectionswitch

Right Side Inverter GTWS240YS, Terminal XM2B1/ 24 Vdc power supply 2,5A2/ 0 Vdc power supply 2,5°3-4/ Inverter contact: DE5-6/ Gear Inverter contact (from Hardware)7-8-9/ Contact heat exchange cooler pad, T=50°C(9 common – 8 NO: closed T< =50°C)10-11/ minimum coil ( 30Vdc) generator sectionswitch

Complete PanelTechnical Specifications

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Inverter System

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Workability

While operating in “energy storing” mode, the batteries rapidly store the energy produced

by the motorgenerator while under way. The batteries can also be recharged simply by

plugging them to the shore power connection. For short range coastal cruises, the yacht

can, for example, leave port, cruise around and return using only the electricity drawn and

stored from the terrestrial network, providing significant energy savings and much less

pollution.

Supply Facilities

For all our hybrid propulsion solution we provide our costumers with best quality marine

batteries purchased from our qualified suppliers.

Electric Hybrid PropulsionBatteries

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For some ship types, like urban lines vessels, thehybrid propulsion is the realization of a dream.This solution has indisputable advantagesin term of:

• noise and vibrations reduction withhighercomfort for passengers• less space required for equipment• Less manteinance• Better power station management in term offlexibility, reliability, operation at constant runningconditions of the diesel engines• Lower fuel consumption and emissions• Lower acoustic pollution• Better manouvreability dynamic response topropulsion commands

Electric Hybrid PropulsionAdvantages

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NIDEC ASI has realized the dream of decrease the use of Fuels and improve theenvironmental protection technology. These Targets play an ever greater role in the

requirements of today's vessels.

The provision of electrical power and the implementation of electric urban transit systemsreduce smokes emissions enables utility and industrial customers to improve performance,

whilist lowering enviromental impact. We contribute to eco-efficiency and enviromentalstewardship offering energy-efficient systems, products and services.

Electric Hybrid PropulsionEco Efficiency

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