Step 2-2: Determining battery performance (power capacity). In an electric propulsion system, the battery serves three main purposes: first, to drive the propulsion motor to provide thrust; second, to supply the power required for vessel operations; and third, to provide a temporary power supply in the event of a generator failure .
Battery-Based Hybrid Electric System Design To convert a naval vessel from a mechanical propulsion system into a hybrid electric propulsion system utilizing batteries, operational profile data were measured to design the power system. The total required power and propulsion load for the target vessel were confirmed to be between 960 and 9719 kW.
As is known, electric propulsion can be based on different electrochemical sources; nowadays, the widely used systems are developed on lithium battery packs, especially in automotive, where requirements in terms of gravimetric and volumetric energy densities are not so stringent compared to the aeronautical sector.
The steps for implementing the design are as follows: Step 1: Analysis of the target vessel’s propulsion load and power load. Step 1-1: Selection of the target vessel. This study implemented a battery-powered hybrid electric propulsion system using the Cheonghaejin-class ROK Navy vessel as the target ship.
This transition from a mechanical propulsion system to a battery-based hybrid electric propulsion system not only enhances efficiency but also provides significant environmental benefits. Additionally, it can lead to reduced costs, facilitating a more effective use of national tax resources.
In contrast, this research aims to develop a hybrid electric propulsion system with battery integration, specifically tailored for naval vessels. It takes into account the variations in equipment operation based on mission requirements, reflecting changes in power loads.
BATTERY ELECTRIC PROPULSION
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To convert a naval vessel from a mechanical propulsion system into a hybrid electric propulsion system utilizing batteries, operational profile data were measured to design the power system. The total required power and propulsion load for the target vessel were confirmed to be between 960 and 9719 kW. By applying a margin of 1.15% based on the ...
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BATTERY ELECTRIC PROPULSION
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From a Battery-Based to a PEM Fuel Cell-Based Propulsion
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BATTERY ELECTRIC PROPULSION
This fact sheet offers insight into battery electric propulsion, ranging from relevant regulations, technical concepts, information on economics and environmental sustainability as well as references to deployed examples. Batteries can be used as the sole power source or in
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