Abstract
To improve the operation efficiency and reduce the emission of a solar power integrated hybrid ferry with shore-to-ship (S2S) power supply, a two-stage multi-objective optimal operation scheduling method is proposed. It aims to optimize the two conflicting objectives, operation cost (fuel cost of diesel generators (DGs), carbon dioxide (CO2) emission tax and S2S power exchange) and energy storage (ES/ESS) degradation cost, based on the preference of the vessel operator and solar photovoltaic (PV) power output. For the day-ahead optimization, interval forecast data of the PV is used to map the solution space of the objectives with different sets of weight assignment. The solution space from the day-ahead optimization is used as a guide to determine the operating point of the hour-ahead optimization. As for the hour-ahead scheduling, more accurate short-lead time forecast data is used for the optimal operation scheduling. A detailed case study is carried out and the result indicates the operation flexibility improvement of the hybrid vessel. The case study also provides more in-depth information on the dispatching scheme and it is especially important if there are conflicting objectives in the optimization model.
Highlights
In 2008, more than 90% of global trading was carried out by maritime transportation and it is expected to be tripled by 2025
The first subsection will elaborate the results obtained from day-ahead scheduling or solution space mapping based on solar interval PV prediction data whereas the second subsection will elaborate in details of the hour-ahead generation dispatch
This was because the ship power system needed to estimate the propulsion power requirement of the vessel based on the sea-state and payload with the help of the Equation (8)
Summary
In 2008, more than 90% of global trading was carried out by maritime transportation and it is expected to be tripled by 2025. The international maritime organization (IMO) stated that if no necessary actions are taken to improve the energy efficiency of the vessel, carbon dioxide (CO2 ) emission will increase by 250% by the end of 2050 [1]. The emission level of the ships is restricted by the authorities and some of the on-board diesel generators (DGs) are forced to switch off when the vessel is approaching the harbor. Improvement measures such as renewable energy source (RES), energy storage system (ESS). The key research challenge is to design an optimal operation scheduling of the more-electric vessel with the consideration of the proposed improvement measures
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call