Optimal Power Management for Ship Propulsion Systems Using Differential Evolution Algorithms

Abstract

The electrification of maritime vessels, particularly their propulsion systems, is a highly active area of research. Utilizing shaft motors for parts of the ship's propulsion system emerges as a particularly promising approach. Traditionally, power dispatching on ships is conducted through simplified methods, unlike the complex optimal power dispatching methods used in mainland power systems. This study introduces an optimal power management algorithm incorporating differential evolution algorithms, ship technology, operational constraints, and environmental regulations set forth by the International Maritime Organization. By leveraging technical data from actual diesel engines, alternators, main generators, and auxiliary generators, various ship propulsion and power generation configurations were analyzed and compared. The findings demonstrate significant benefits, including reduced operating costs of the ship's power system, achieved through the implementation of the proposed algorithm.