Modeling and Stability Analysis of Radial and Zonal Architectures of a Bipolar DC Ferry Ship

Electrification of ships is one of the hot topics in the marine industry. This is due to the stringent guidelines by the International Maritime Organisation (IMO) for curbing the green house gas emissions from the marine sector. In this paper, the state-space modeling approach is used to model bipolar dc grids on ships. A ferry is used as a test case. The modeling is done for the radial and zonal architecture with similar components. The dynamic simulation and stability analysis of the two architectures reveal that zonal architecture is potentially more stable than the radial architecture.