Fig. 1 Energy conversion efficiency of electric propulsion system
Fig. 2 Functional diagram of EMS
Fig. 3 Use ratio according to auxiliary load size
Fig. 4 Use ratio according to propulsion load size
Fig. 5 Use ratio according to total load size
Fig. 6 Distribution of speed of target ship
Fig. 7 Example of load analysis table
Fig. 8 Distribution of the auxiliary load classified by operating modes
Fig. 9 Distribution of the propulsion load classified by operating modes
Fig. 10 Distribution of the total load classified by operating modes
Fig. 11 Distribution of the total load at the All state
Fig. 12 Result of simulation of charge and discharge tendency
Fig. 13 Distribution of battery capacity by generator combination(1)
Fig. 14 Distribution of battery capacity by generator combination(2)
Table 1 Specification of target vessel
Table 2 List of collected data
Table 3 Generator capacity selection step
Table 4 Combination of generation
Table 5 Selecting generator capacity combination
Table 6 Optimized operation load of generator by Case 4
Table 7 Distribution of battery capacity by generator combination(3)
Table 8 Generator and battery capacity of virtual electric propulsion ship
참고문헌
- Egill. E.(2015), "Calculation of Service and Sea Margines", Norwegian University of Science and Technology, Department of Marine Technology, Master thesis.
- Hyang, C. H.(2018), "Autonomous vessels, The new growth engine of the downturned shipping and shipbuilding industry", Korea Maritime Institute Weekly report(2018.2.), Vol. 72. https://www.kmi.re.kr/web/trebook/view.do?rbsIdx=273&page=7&idx=87
- Hankyoreh(2017), China, the world's first electric freighter http://www.hani.co.kr/arti/economy/economy-general/823444.html
- Kouzelis, K.(2015). "Load and Flexibility Models for Distribution Grid Management", Aalborg University, Department of Energy Technology, PhD Dissertation.
- MAN(2012), "Diesel-electric Propulsion Plants, A brief guideline how to engineer a diesel-electric propulsion system", https://marine.mandieselturbo.com/docs/librariesprovider6/marine-broschures/diesel-electric-drives-guideline.pdf
- Park, Y. S.(2018), "Impact of shipbuilding industry on tightening marine environmental regulations" Weekly KDB report(2018.1.8.), KDB bank, pp. 18-20.