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Electric power consumption predictive modeling of an electric propulsion ship considering the marine environment

  • Lim, Chae-og (Department of Naval Architecture & Ocean Engineering, Pusan National University) ;
  • Park, Byeong-cheol (Department of Naval Architecture & Ocean Engineering, Pusan National University) ;
  • Lee, Jae-chul (Department of Naval Architecture & Ocean Engineering, Gyeongsang National University) ;
  • Kim, Eun Soo (Department of Naval Architecture & Ocean Engineering, Pusan National University) ;
  • Shin, Sung-chul (Department of Naval Architecture & Ocean Engineering, Pusan National University)
  • Received : 2018.05.31
  • Accepted : 2019.02.19
  • Published : 2019.02.18

Abstract

This study predicts the power consumption of an Electric Propulsion Ship (EPS) in marine environment. The EPS is driven by a propeller rotated by a propulsion motor, and the power consumption of the propeller changes by the marine environment. The propulsion motor consumes the highest percentage of the ships' total power. Therefore, it is necessary to predict the power consumption and determine the power generation capacity and the propeller capacity to design an efficient EPS. This study constructs a power estimation simulator for EPS by using a ship motion model including marine environment and an electric power consumption model. The usage factor that represents the relationship between power consumption and propulsion is applied to the simulator for power prediction. Four marine environment scenarios are set up and the power consumed by the propeller to maintain a constant ship speed according to the marine environment is predicted in each scenario.

Acknowledgement

Supported by : National Research Foundation of Korea (NRF), KEIT

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