There are many possible electrical architectures for electrifying a ship. To support the selection and design of an electrical system architecture a Design tool was elaborated, and this is a complementary document that explains the approach followed. For more information on the various possible architectures (AC, active DC, etc.) see deliverable [1]. The Design tool considers a set of architectures including: a sheet for each architecture, the block diagram, more specific design data (rated power of converters, amount of battery packs, etc.) and some complementary calculations.
The Design tool uses a five-step approach:
- step 1 ‘ship input data collection and definition’
- step 2 ‘short listing the design options or variants to consider for hybrid ship system level electrical architectures.’
- step 3 ‘Primary architecture selection based on exclusion criteria (go/no go)’
- step 4 ‘Secondary architecture selection based on an engineering design trade off based on scoring in the Design tool.’
- step 5 ‘Tertiary and final selection of electrical architecture including (if any) simulations from T2.5’.
This tool supported the electrical architecture design exercise done with the FLEXSHIP project partners and was applied to the two demo ships from which data included herein serves as illustrative example. The main objective of designing an electrical architecture is to ‘electrify’ or convert existing ships into hybrid propulsion ships in line with the design options discussed in the previous deliverables of Task 1. As a result of cooperative design options elaborations and screening, one electrical architecture was proposed for the Ataturk and two for the Gunnerus FLEXSHIP demo vessels. The taskforce decided strategically to keep a second back-up architecture grid for Gunnerus, since some input data is still under investigation (e.g., compatibility check of existing motor drives (step 3). Thus, this second possible Gunnerus architecture serves to provide the FLEXSHIP consortium with a way forward in case the initially selected architecture may encounter complications in its integration phase, while respecting the commitments of the project in its demonstration phase. This tool is a generic approach, harmonized to be used as a baseline for all vessel re[1]electrifications, and could be further used in subsequent tasks because the overall electrical architecture is the basis on which simulation models, control and management systems are developed on, i.e., Task 2.5.
This D2.1 tool (Design tool) that included a clear proposal for the preliminary electrical architecture for both demo ships.
The report is confidential, though a comprehensive summary is shared here.
This project has received funding from the European Union’s Horizon Europe research and innovation program under grant agreement no. 101095863
