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Answers for Energy.

Shoreside power supply

Intelligent solutions for berthed ships based on

SIHARBOR / SIPLINK medium-voltage systems


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Shoreside power supply for ships environmentally friendly and economical

Cargo shipping carries the bulk of the globaltraffic in goods. More than 90 percent of theglobal trade flow is transported across the worldsseas and oceans. But while maritime transportcontributes about the same proportion of global

CO2 emissions as air transport, maritime trans-port shows other pollution problems: Combus-tion of ship diesel fuel releases considerablyhigher emissions of sulfur and particulate matterthan do other fuels.

Seaports suffer particularly from pollution, notonly due to ships entering and leaving, but alsoduring their lay days. In 2020, experts estimatethat in certain port regions, 20 percent of all par-ticulate matter emissions will be caused by ships.In some places today, emissions of relevant pol-lutants by ships already represent a much higher

proportion of total pollution, accounting for asmuch as 90 percent of nitrogen and sulfur oxides.

In the European Union, these developments haveled to a recommendation for installing a shore-side power supply for ships berthed in ports (seetext box). A corresponding EN/IEC standard is alsobeing prepared. And there are signs that authori-

ties are taking similar measures in other regionswhere cargo shipping is a significant source ofair-borne pollutants.

SIHARBOR the clean solution for supplying

power to ships in ports

A shoreside power supply provides an effective,convenient solution to the problem of emissionsfrom berthed ships. With the SIHARBOR shoresidepower supply system, Siemens offers a standard,modular system concept both onshore and onboard the ship. SIHARBOR complies with the EUrecommendation 2006 / 339 / EC in every respect.

It fulfills the different requirements of port opera-tors, ship-owners, shipyards and power supply


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Benefits at a glance

SIHARBOR is eco-friendly: It is possible to use electricitygenerated in power plants where generation is subject tostricter environmental protection standards. SIHARBOR

results in 35 percent less carbon dioxide, about 97 per-cent less nitrogen oxides and 90 percent less particulatematter than does maritime diesel.

SIHARBOR saves costs: In the future, there will be anumber of factors that will cause fuel costs to rise. Thosewill include rising prices for oil and oil-based products andstricter requirements with regard to the permissible sulfurcontent of a ships diesel fuel. That is why an onshoresupply of electricity will often be the cheaper solution forship owners.

SIHARBOR reduces noise pollution: An electrical con-nection eliminates the vibration and noise of on-boardgenerators. That signicantly increases the quality of lifefor passengers, crew and residents in the port area.

Recommendation 2006 / 339 / EC

In November 2002, the Commission issued a communiqu about the European Union strategyfor reducing atmospheric emissions from seagoing vessels using shore-based power sourcesfor berthed ships. This recommendation was nalized in document 2006 / 339 / EC and supple-

mented with additional measures.

One Commission recommendation addresses the issue of shoreside power supply. Memberstates should consider the installation of shoreside power supply for use by ships at berth inports, and consider offering economic incentives to operators to use shoreside power providedto ships.

Member states should work within the International Maritime Organization (IMO), in thecontext of the ongoing review of the International Convention for the Prevention of Pollutionfrom Ships (MARPOL Convention), to promote the development of harmonized internationalstandards for shoreside electrical connections, taking into account ongoing work.

At the same time, studies were also published on the cost-effectiveness and practicality of us-

ing shoreside power to reduce emissions for different types of ships, routes and ports.

0

25

50

75

100

Reduction of pollutantswith SIHARBOR*

CO2

35 %partic-ulatematter

90 %

NOx

97 %

*based on an European energy mix

companies. And it is suitable for harbors of dif-ferent sizes. The system can also supply all typesof vessels, such as cruise ships, container shipsand ferries. Thanks to the modular design of the

system, any solution using the frequency combi-nation of 50 Hz and 60 Hz as well as all voltagelevels required in the shipping industry can beadapted and realized.


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The integrated and modular SIHARBOR system forshoreside power supply offers a perfectly alignedconcept with components for medium-voltageshoreside power supply.

Every ship has its individual power supply require-ments. SIHARBOR offers the required flexibilityas an integral part of the system. Thanks to themodular design of the system, any frequency

combination of 50 Hz and 60 Hz can be realizedin the supply system.

The SIHARBOR package includes dedicated trans-formers to adapt the voltage levels on shore tothe on-board power system. This way, older shipscan also be easily connected as well. In the major-ity of applications, refitting the existing power ca-ble inlets is no problem. Setting up the shoresidepower supply system is a matter of only a fewminutes. Staff safety is guaranteed at all times.

SIHARBOR is based on standardized, proven com-

ponents used by the million from the Siemensportfolio for power supply solutions. The shore-

side connection to the ship is controlled via anautomation system that is linked to the ship. Afiber-optic cable is used for ship-to-shore com-munication.

SIPLINK essential core element of the

SIHARBOR system for frequency adaption

On two-thirds of all ships worldwide, the on-board supply system operates at 60 Hertz. Con-

sequently in Europe, the frequency has to beadapted for shoreside power supply. SIPLINK, thecore element of the SIHARBOR solution, connectsthe ships on-board system with the local powergrid. The shoreside voltage and the voltage ofthe on-board system are adapted via suitabletransformers that also isolate the galvanic con-nection between shoreside and on-board supplysystems.

The cable feed crucial key to success

The dedicated cable feed systems of theSIHARBOR package for the shore-to-ship link

take into account all of the flexible connectionpoints that are required for different ship types.

SIHARBOR: Shoreside power supplywith rugged, proven components


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And they automatically compensate for the tidalrange.

SIHARBOR everything from a single source

SIHARBOR offers you an easy way to exploit all

of the benefits of shoreside power supply. TheSiemens experts adapt the system to your specific

requirements. Siemens delivers all ser vices froma single source, with no interfacing problems, in-cluding the utilitys substations, medium-voltageswitchgear, cable feed systems and automationsystem.

SIHARBOR is the environmentally friendly, eco-nomical solution for your port.

Benefits at a glance

SIHARBORReduces pollutant emissionsProvides a fast, simple connection to theship via a cable feed systemCovers every power requirement bycascading power modulesLimits the short-circuit power, whichprevents the overloading of the localpower grid and of the medium-voltageplug-in connection. No short-circuitlimiting measures are required on the shipApplies industrial standards and usesproven Siemens components. Thoseinclude SIPLINK network coupling,

Siemens transformers, type-testedSiemens medium-voltage switchgear andautomation systems with SIMATIC S7

Provides a fast and reliable connectionfor ships. Requires no specially trainedpersonnel for the shore-ship connectionEstablishes the shoreside power supplyvia a reliable and standardized plug-inconnection with integrated ber-opticcableMakes it possible to record and archivepower consumption when berthedReduces fuel consumption on-boardReduces energy costs on-boardIncreases the operational life of the shipsdiesel engine and auxiliary units

Allows repair and maintenance work onboard to be planned while the ship isberthed


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When planning a solution for a shoreside power supply,there are a number of various crucial aspects that mustbe taken into consideration. Right from the planning

stage, the power supply requirements should be speci-fied as comprehensively and precisely as possible.

Planning the onshore power supply

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7BSJBOU)[)[XJUI4*1-*/,

4*1-*/,

1 Port infeed

Can the local utility provide the required totalpower for the planned shoreside connection?

2 Port grid

What is the nominal voltage?

What is the nominal frequency?

What grid voltage uctuations exist (in percent)?

Does the grid dimensioning fullll the SIHARBOR /SIPLINK requirements?

How is the SIHARBOR / SIPLINK system to be fed in?

Existing switchgear systems?

Additional switchgear systems?

New switchgear?

What is the distance from the port grid to the berth(cable length)?

Is power consumption metering required?

Yes No


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Port infeed

Port grid

Shoreside ship connection

On-board ship connection

SIPLINK and distribution withvoltage and frequency matching

1

2

4

5

3

3 SIPLINK and distribution

Is there an existing building available for installation ofthe SIPLINK system?

Yes No

The following items must be taken into account forinstallation in a building:

Will the building support the weight (statics)*? Yes No

Is there sufcient space available for thecomponents*?

Yes No

Are the rooms air-conditioned? Yes No

Are the rooms dust-protected? Yes No

How far is the distance between converter

and heat exchanger?

meters (heat exchanger has to beoutside)

Is the SIPLINK system to be installed in an outdoorcontainer?

Yes No

Are there requirements with respect to limiting noise?

dB(A) at a distance of meters

How high are the outside temperatures?Minimum Maximum

4 Shoreside ship connection

How many berths are to be supplied?

How many connection points per berth are feasible?

Shall the system be able to connect to different typesof ships (container, RoRo, ferries ) at berth?

What total power output is necessary for each berth?

What is the maximum permissible distance betweenship and SIPLINK (for laying the cable)?

5 Shipside connectionWhich on-board voltages are to be taken into account?

Which on-board frequencies are to be taken intoaccount?

What is the power requirement of each expected typeof vessel?

What total power consumption is expected?

*Example on next page


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SIPLINK stands for Siemens MultifunctionalPower Link and enables linking a ships on-boardpower system to the existing onshore power grideven if the system frequencies are different. Thetwo networks are electrically isolated from oneanother. SIPLINK can generate different voltagelevels and frequencies for the on-board systemdepending on the type of ship berthed at thistime.

The power inverter

The power inverter consists of a rectifier for theonshore grid side, an inverter for the on-board

supply, a DC intermediate circuit, a closed loopcontrol system, control system and the networkfilters.

The following requirements can be fulfilled withthe power converter:

On-board system supplyDifferent frequencies (50 Hz / 60 Hz)Parallel operation with on-board system gen-erator during synchronizationSynchronization in either the ship-to-shore orshore-to-ship directionRestriction of the short-circuit power

Filter per network side THD of 5 % in linewith standard EN-61000-2-4

The transformersConverter transformers provide the SIPLINKconnection to the power supply system. Thetransformer facing the ship electrically isolatesthe on-board and onshore power grids so thatthere is no possibility whatsoever of galvaniccorrosion.

Depending on requirements, either dry-typetransformers or oil-cooled transformers can beused to provide the voltages (for example 6.6 kVor 11kV) at the berth.

The cooling systemThe SIPLINK system is water-cooled. The heatexchanger is designed either as a water/air ex-changer (outdoor installation) or as a water/waterexchanger, depending on the application. The di-mensions vary according to the required coolingperformance. Noise protection requirements arealso taken into account.

Key data for a typical application:Outside temperature from 20 to +35 C(water / air cooling with water / glycol mix ascoolant)

Alternatives down to 40 C and over +40 Cpossible

SIPLINK the flexible and reliable networkcoupling for the shoreside power supply

Exemplary container installation based on a solution in Flensburg


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Acoustic pressure level 65 dB(A) at a distanceof 10 mAcoustic power 100 dB

The switchgear systems

The switchgear systems can be either air-insu-lated or gas-insulated. Gas-insulated switchgearsystems are preferred for ease of maintenanceand space reasons.

Human-machine interface systems

The components of the SIPLINK system are

equipped with a local control unit with operat-ing and diagnostics options. A master SIMATIC S7

controller with operator panel monitors the stateof the system at a central location and displaysall operator, alarm and fault data. All data can betransferred to master control systems via stan-dardized bus systems.

Installation

The SIPLINK system can be installed in existingequipment rooms if there is sufficient space.

System solutions in the form of containers or pre-fabricated concrete substations are also available

as options. The components are preassembledand function-tested at the manufacturer.

Example* for the installation of a 1.0 MVA SIPLINK

No. Qty Component Dimensions (H x W x D in mm) Weight (kg)

1 1 Converter 2,200 x 3,200 x 1,200 2,300

2 2 Dry-type transformer 1,750 x 1,000 x 1,650 2,900

3 1 Cooling System 2,000 x 900 x 600 600

4 1 Heat exchanger 1,420 x 2,200 x3,200 630

5 2 Switchgear 2,200 x 1,100 x 600 800

6 1 Container 3,200 x 10,000 x 3,800

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4XJUDIHFBS4XJUDIHFBS

$POWFSUFS

*ODPNJOHGSPN6UJMJUZ

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*non-binding


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We assist you with the planning and imple-mentation of your shoreside power supplysystem, from the initial idea to the commis-sioning. We draw up a detailed cost / benefitanalysis together with you in order to findthe optimal solution for your needs. Ourexperienced project managers ensure thatthe project is implemented on schedule andwith the right quality. And in any of 150countries, we can be quickly on the spotwith a service team should you need assis-tance with the start-up or modernization of

your shoreside power supply system.

Qualified planning, project handling andservices for your shoreside power supply

Overview of our services

1. Concept phase

Feasibility studies (for example a power system analysis) help analyzethe existing fundamentals correctly.

2. Design phase

In the design phase, solutions for the specic local requirements aredeveloped in consultation with the customer.

3. Implementation

Implementation comprises initial planning, project planning, procure-ment, deadline monitoring and documentation.

4. Installation and commissioning

The SIPLINK system can be set up and installed in existing buildings,as a container system solution or in prefabricated concrete substa-tions, providing the space is designed as an electrical operating area.The components are preassembled and have been function-tested atthe manufacturer. Installation can be carried out by the local Siemensagency or by the customer. This is followed up with commissioning andsystem testing by specially trained Siemens personnel.


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References:

Flender Werft AG, Germany

Shoreside power supply with SIPLINK for ships underconstruction from the 50 Hz shipyard grid1 MVA medium-voltage DC back-to-back link for sup-plying 50 / 60 Hz on-board systemsTesting of on-board generator sets with SIPLINKFeedback of electrical power into the shipyard gridwhile generators are runningControlled exchange of active power in both direc-tions for improving stability of the network and opti-mizing load ow in the shipyard and on-board powergrids

Port of Lbeck / TransAtlantic, Germany

Joint pilot project together with paper company StoraEnsoas client of the shipping company as part of the New HansaprojectShoreside connection for the three paper ferries Trans-Paper, TransPulp and TransTimber of Finnish shipping lineTransAtlantic with 400 V / 50 Hz on-board supply systemsThe ships are already equipped for shoreside connectionin Finland and have a cable feed system with a plug-inconnector, a control unit for the coupling process and a

transformer on boardIn Lbeck, Siemens installed the matching connection pointat the berth and set up the connection to the medium-volt-age system of the Lbeck municipal utility. For control andcommunication between ship and onshore supply system,Siemens modernized the Finnish relay technology andcreated a modern software solution using programmableSIPROTEC multifunctional relays from SiemensSIHARBOR solution with 10 kV switchgear for the connec-tion to the shoreside supply, 6 kV switchgear for the con-nection to the on-board power grid, a cast-resin transform-er with 10 kV / 6 kV for the electrical isolation of the twonetworks, and another substation on the wharf accommo-

dating the sockets for the 6 kV power circuit and forthe control unit and operator panel

Flensburger Schiffbaugesellschaft, Germany

Shoreside power supply for powering ships in theshipyard with different voltages (400 V / 50 Hz,440 V / 60 Hz, 690 V / 60 Hz) from the 50 Hz ship-yard gridConverter capacity 1 MVAEnergy recovery from the on-board generators tothe shipyard gridAcoustic pressure level 45 dB(A) at a distanceof 65 mSIPLINK container solution with complete installa-tion of all components, erected at a height of 8 m


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Published by and copyright 2008:Siemens AG

Energy SectorFreyeslebenstrasse 191058 Erlangen, Germany

Siemens AGEnergy SectorPower Distribution DivisionMedium VoltageMozartstrasse 31 C91052 Erlangen, Germany

For more information, please contactour Customer Support CenterTel.: +49 180/524 70 00Fax: +49 180/524 24 71(Charges depending on provider)E-mail: [email protected]

Power Distribution DivisionOrder No. E50001-G710-A101-X-4A00Printed in GermanyDispo No. 40400006100/13406 TV/W WS 0908 2.

Printed on elementary chlorine-free

bleached paper.

All rights reserved.Trademarks mentioned in this document are

the property of Siemens AG, its affiliates, or

their respective owners.

Subject to change without prior notice. The

information in this document contains general

descriptions of the technical options available,

which may not apply in all cases. The

required technical options should therefore be

specified in the contract.

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