ELECTRIC POWER SOLUTIONS FOR HYBRID PROPULSIO

1. Marine & Offshore
ELECTRIC POWER
SOLUTIONS FOR HYBRID
PROPULSION
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2. Electric Propulsion Experience
Leading the way to innovation: hybrid propulsion system
Our proven experience to satisfy every custom solutions for marine propulsion and on board
generation 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 in
inland sea without needing a separate on board generator to supply on board equipment.
With zero emission electric power it is possible to reach the desiderable
advantages useing only the electrical propulsion.
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3. Hybrid Propulsion Experience
SHOWCASE: E1 zero emission boat for Venice Laguna
Large cities represent areas of intense concentration in activities. These activities are the origin of
the 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 Consorzio
Trasporti Veneziano) we have developed and realized the dream of E1 boat, a new waterbus which
complies with Z.E.B (Zero Emission Boat) program. The E1 boat carries 200 people throught the
Canal Grande, reducing pollution emissions, noises and vibrations, guaranteing maximum comfort
of 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 requirements
and costs, more reliability compared to a DC motor.
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4. Hybrid Propulsion Experience
SHOWCASE: Low emission boat for Venice Laguna
LIUTO (Low Impact Urban Transport
Omnibus) research project consisted of a
collaborative venture between six partners
from three European countries. Based on E1
vessel’s project it is defined as a Low
Emission Boat (L.E.B). This hybrid propulsion
vessel have been conceived in order to
optimize E1 vessel’s performance.
ACTV identifies its requirements for a new vessel’s performance in view of two different
conditions:
• 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, achieving
optimal performance in terms of energy efficiency and manoeauvability.
Moreover this solutions will provide to preserve from the wear of time the historic buildings
of Venice for the next years.
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5. Low Emission Boat for Venice Laguna
Optimizing Vessel Performance
The vessel’s prototypes speed performance
Venice’s water traffic legislation
permits only two speed - slow
in the canals and faster in open
water.
In order to optimize vessel’s
performance our project was
focused on engineering a
hybrid diesel-electric system.
The hybid system optimizes
the boat’s performance at both
speeds, permitting a switch
from diesel when operating in
open waters to electric
propulsion in the canals.
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6. Low Emission Boat for Venice Laguna
Scope of Supply
Scope of Supply:
3-phase synchronous electric generator, with excitation current
control by AVR;
3-phase rectifier;
Batteries stack (high charge/discharge rate; e.g.NI-Cd; supplied
by a third part);
Power management and battery charge control; Inverter unit;
3-phase asynchronous electric motor;
Interface mechanical coupling with the propulsion system drive
shaft;
Advantages: Optimized Power Generation Management, High dynamic performance, Excellent
manoeuvrability, 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
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7. Low Emission Boat for Venice Laguna
Vessel single line diagram
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8. L.I.U.T.O: System Components
Main Characteristics, weight and dimensions
Diesel generator set: it is done by one direct injection
engine coupled with a self-ventilated sinchronous generator
with brushless excitation
Diesel generator set: 3000x1000x1500 LxWxH mm,
2300 kg
DC rectifier / Battery charger: when the network voltage is
present the rectifying unit charges the batteries and supplies
the main and auxiliary inverters
Battery charger: 800x600x1100 LxWxH mm, DC
rectifier, 350 kg
Batteries: lead-acid with gelified electrolite, the
configuration two battery packs (12 volt 55 Ah/5h, 480 Volt e
110 Ah/5h total) connected in parallel.
Battery module: 617x363x275 LxWxH mm (2 modules
in total), 100 kg
Main inverter: IGBT based voltage source PWM inverter
with vectorial control, it features power regeneration to
batteries
Main inverter: 600x600x1200 LxWxH mm, 350 kg,
800x600x1200 LxWxH mm, 350 kg
Main electric propulsion motor: asynchronous three
phase squirrel cage motor self ventilated, 90 kW 290 VAC
1800 rpm
Emergency electric propulsion motor: asynchronous
three phase squirrel cage motor self ventilated, 11 kW 440
VAC 870 rpm, in case of failure either in the main inverter or
in the main electric propulsion motor the system is equipped
with a take-home emergency motor with star/delta starte
Auxiliary inverter: all the ship services are fed by the
batteries via a 230VAC auxiliary inverter. In case of a failure
of the inverter a by-pass supply through a feeding line
coming from the diesel generator is provided.
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Auxiliary inverter: 600x500x1100 LxWxH mm, 120 kg,
450x550x800 LxWxH mm, 200 kg
Main motor: 1080x740x520 LxWxH mm, 590 kg
Emergency motor: 675x432x330 LxWxH mm, 130 kg
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9. Hybrid Propulsion Propulsion
Zero emission Mode Yacht for Ferretti Groups
We have combined our expertise and our Skills
with Ferretti Group, one of the world leaders in
design, construction and sale of luxury
motoryachts.
The result of this union was the culmination of
a dream, the first hybrid yacht over 20 feet long
That Produces negligible tailpipe emissions.
The yacht is a 75-foot tri-deck that has a a
hybrid propulsion system. When running on
diesel and cruising at eight knots it emits 10
kilograms of carbon dioxide for each nautical
mile. The engine charges a battery pack that
can also power the boat. In this diesel-electric
mode, it emits less than half a kilogram each
nautical mile.
The first Zero Emission Mode motor yacht over 20 metres
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10. Hybrid Propulsion Propulsion
Zero emission Mode Yacht for Ferretti Groups
Scope of Supply:
n. 2 Inverter GT 5000 (*), IGBT technology;
Control: digital display 24 bit – MC5200;
Electronic circuit: SMD
Rated current: 350 A in classe 2;
Rated power: 240 kVa @ 400 Vca classe 2;
Protection: IP00;
water cooling max 35°C
Comunication: SERIAL rs 485 with protocol Modbus &
Profibus;
Motor sensorless control system
Advantages: the innovative hybrid propulsion combines the reliability of the traditional diesel, which when
selected 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.
(*) supplied by Answer Drives
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11. Inverter System
The Company developed a
special algorithm that allows
sensorless control of the
synchronous motor.
The torque / speed control
of the two motors is
ensured by the two voltageimpressed, liquid-cooled
inverters fed by the traction
batteries.
Placed at the centre of the engine room with the two main diesel traction motors, together
with the BMS (Battery Management System) which monitors the status and operation of the
batteries, the Control System represents “the heart” of the Hybryd Drive System and services
onboard.
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12. Complete Panel
Technical Specifications
Input Power:
Positive/negative - Battery: 360-750Vdc 350A
earthing
Output frequency:
Motor phases D: 400A, 250Vac,
max ( 250Vac x 1,4142 = 350< 360 Vdc), max
333Hz
Motor phases S: 400A, 250Vac
UPS/CB: 5A, 230V, 50Hz earthing, accessories
Terminal XM4:
1-2/ 24VDc
3-4/ 0VDc
5-6/ Minimum coil ( 30Vdc) Battery stop switch
Cooling liquid tubes:
In-Out: flow 12,5 l/min Inverter 1
In-Out: flow 12,5 l/min Inverter 2
In-Out: flow 12,5 l/min UPS/CB
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Left Side Inverter GTWS240YS, Terminal XM2B
1/ 24 Vdc power supply 2,5A
2/ 0 Vdc power supply 2,5°
3-4/ Inverter contact: DE
5-6/ 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 section
switch
Right Side Inverter GTWS240YS, Terminal XM2B
1/ 24 Vdc power supply 2,5A
2/ 0 Vdc power supply 2,5°
3-4/ Inverter contact: DE
5-6/ 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 section
switch
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13. Inverter System
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14. Electric Hybrid Propulsion
Batteries
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.
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15. Electric Hybrid Propulsion
Advantages
For some ship types, like urban lines vessels, the
hybrid propulsion is the realization of a dream.
This solution has indisputable advantages
in term of:
• noise and vibrations reduction withhigher
comfort for passengers
• less space required for equipment
• Less manteinance
• Better power station management in term of
flexibility, reliability, operation at constant running
conditions of the diesel engines
• Lower fuel consumption and emissions
• Lower acoustic pollution
• Better manouvreability dynamic response to
propulsion commands
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16. Electric Hybrid Propulsion
Eco Efficiency
NIDEC ASI has realized the dream of decrease the use of Fuels and improve the
environmental 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 systems
reduce smokes emissions enables utility and industrial customers to improve performance,
whilist lowering enviromental impact. We contribute to eco-efficiency and enviromental
stewardship offering energy-efficient systems, products and services.
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