Modelling of diesel electric propulsion

Karakitsos, I and Theotokatos, G; (2016) Modelling of diesel electric propulsion. In: Energy Efficient Ships. Royal Institution of Naval Architects, GBR, pp. 93-101. ISBN 9781909024-601

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Abstract

Diesel Electric Propulsion (DEP), in which the ship propeller is driven by electric motors and diesel-generator sets that provide the energy necessary to cover the demand in mechanical and electrical loads of a ship, is gaining ground in marine applications. This paper deals with alternative ways of modelling of DEP electrical and mechanical components in MATLAB/Simulink® and simulations that are carried out for an offshore supply vessel. Firstly, a comprehensive model for the diesel-generator set of the DEP, which includes the diesel engines and synchronous generators, is developed. Different types of short-circuits are imposed at the terminals of the generator in order to assess the transient response of the diesel engine-generator set, and to identify if any dangerous operations conditions arise. Furthermore, the development of a detailed model for the overall DEP that includes variable speed drives and propulsion motors has been implemented. Scenarios that correspond to realistic ship operating conditions have been simulated.

ORCID iDs

Karakitsos, I and Theotokatos, G ORCID logoORCID: https://orcid.org/0000-0003-3547-8867;