Highlights Cold ironing permits shut down of onboard generators of berthed ships. Harbour airborne emissions eliminated with energy supplied by shore power plants. Frequency conversion required for most ports to supply range of visiting ships. Significant power quality issues are highlighted with respect to the utility supply.
Abstract The reduction of emissions in harbours is of particular importance due to the proximity to human habitation. Vessels normally run onboard generators, typically using diesel fuel, to provide the service loads while berthed. New and upcoming regulations aim to decrease emissions from shipping, and coupled with increased environmental consciousness of ship owners and harbour operators, shore supply is becoming a more popular and feasible option. Cold ironing provides an alternative locally emission-free solution by having berthed ships plug in to the shore electrical network, such that the onboard electrical energy demand is supplied from land. Electrically, a number of different shore network topologies are possible, providing different infrastructural options of supplying power to multiple berths. This paper examines the electrical characteristics of one such installation and the impact on the shoreside electrical network for an existing port using actual visiting ship power profiles. The paper examines how the cold ironing system influences important electrical network characteristics such as bus voltages and power quality, as well as the potential impact on the rest of the utility distribution system.
Electrical characteristics of cold ironing energy supply for berthed ships
2015-01-01
13 pages
Article (Journal)
Electronic Resource
English
Electrical characteristics of cold ironing energy supply for berthed ships
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