14. starptautiskÄ konference 2012 - Latvijas JÅ«ras akadÄmija

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Proceedings of 14th International conference „Maritime Transport and Infrastructure - 2012”SHIP SHORE POWER CONNECTION SOLUTIONS IN RIGA FREEPORTJānis Brūnavs, Gundis Lauža, Andris Unbedahts*Latvijas Jūras akadēmija, Flotes 5B, LV-1016, Latvija, E-pasts: Janis.Brunavs@latja.lv**Latvijas Jūras akadēmija, Flotes 5B, LV-1016, Latvija, E-pasts: Gundis.Lauza@latja.lv**Latvijas Jūras akadēmija, Flotes 5B, LV-1016, Latvija, E-pasts: Andris.Unbedahts@latja.lvAbstractTechnical solution of ship shore electrical power supply in the Baltic and Northern sea ports and theirtechnical parameters are analyzed. The results of the analysis are proposals for power supply in theRiga Freeport.IntroductionThe Baltic Sea is one of the busiest shipping areas in the world, freight volume and the numberof ships entering the Baltic, and in particular the port of Riga continues to grow. Considering theintensity of the traffic in the port new technologies shall be carried out to reduce emissions from shipsand pollution level in the port area. This is specifically important in Riga Passenger port wheredocking area are located in the immediate vicinity of the Riga old town and residential area.The following documents concerns Emission levels in EU ports :1. EU Directive 2005/33/EC - change to fuel oil sulphur controls for ships at berth in EU ports whichspecifies the maximum allowable sulphur content of the fuel oil used “ at berth” will be not over 0.10% by mass ( m/m). It covers use for main and auxiliary machinery and boilers and is applicable forships berthing more then for 2 h in the port.2. European Community has adopted a Recommendation 2006/339/EC "Promotion of shore-sideelectricity for the use by ships at berth in Community ports" (Published on 12.05.2006 in the EUOfficial Journal No.125/42) on May 8, 2006.3. The EU Directive 2003/96/EC allows a tax reduction for the use of shore-side electricity. Otherways are also considered to encourage ports to invest in shore-side electricity infrastructure and toensure its use.Based on EU documents more and more EU ports start to be equipped with necessaryinfrastructure for such a connection getting the necessary funding from the EU structural funds. InOctober 2011 Port of Rotterdam launched a pilot project implementation, resulting in 120 shore sideconnecting the points for vessels.Leading ship classification societies, including Lloyds Register (LR), Germanisher Lloyds,Bureau Veritas (BV), Det Norske Veritas (DNV) and others has issued new sections in their ClassRules (or as tentative rules), governing the safety, protection and technical aspects of shore-sideconnection.Different terminology are used by authors in technical articles e.g. OPS - On shore PowerSupply (LR), CI - Cold Ironing , APS - Alternative Power Supply,SPS - Shore Power Supply,SPC - Shore Power Connection.90
Proceedings of 14th International conference „Maritime Transport and Infrastructure - 2012”1. Ship shore power connection characteristicsOn shore Power Supply ( OPS) fulfill the functions of the ship's diesel generators, while sheis at the berth, that is to provide electricity to all the necessary facilities, cargo handling equipment,lighting, heat, etc.Reasons for the use of OPS:- Reduce vessel's fuel consumption;- To provide possibility to carry out engine maintenance , overhauling and inspections duringthe vessel at the port- Reduce air pollution , CO2 emissions and noise level.Building the ship shore power supply, it is essential to evaluate the technical characteristics ofthe system. The most important of these are the ship and shore power frequency, voltage and power.Port of StockholmShore power for large vessels was equipped in 1985. Connection place 440 V is atStadsgarden terminal for ships operating to the Åland Islands ms VIKING CINDERELLA and msBIRGER JARL. With 9 cables, which are alongside the berth, the supply power of 2.5 MW isprovided. Accession process takes about 5 minutes.Stockholm Freeport in 2006 established shire-side connection 690 V / 50 Hz for Tallinkferries ms' Victoria 1 " and " Romantika "with 12 cables and connectors, as shown in Fig.1.Connection / disconnection and takes no more than 5 minutes [5].Fig.1. Connecion cables at docs ready to connect ms „ Viking Cindarella” [8].Port of Piteo (Sweden)MS Balticborg and MS Bothniaborg use 6 kV high-voltage grid with power cable and aseparate command / control cable.Port of Kemi and port of Oulu (Finland)Since 2006 Stora Enso terminal of port of Kemi and port of Oulu use Ro-Ro ships with 6.6 kVconnection, similar to the design of the port Gothenburg.Port GothenburgShore-side connection has been operating since 1989. Stena Line Ro-Ro passenger ferriesStena Scandinavica and Stena Germanic serving Kiel-Gothenburg line use 400V connection. Theconnection at the port of Gothenburg operates since January, 2000. It was originally established as ahigh voltage connection system for Ro-Ro ships in cooperation with Stora Enso and ABB.Transformer 10 kV / 6.6 kV 1250 kVA is located on the quay (Fig. 2). Equipment, automatic controland connection sockets are located in 9-foot container. Connection is realized through a single cable[8].91
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