Analysis of the Structure of the AZIPOD Electric Drive System and Its Key Functional Elements
DOI:
https://doi.org/10.46299/j.isjea.20230206.07Keywords:
AZIPOD, electric motor, permanent magnets, propeller screw, motion module, transformer, control system, small-tonnage vessels, frequency converterAbstract
The paper presents innovative and efficient technical solutions for the use of electric motors that contribute to increasing ship speed, maneuverability, and operational reliability in AZIPOD systems. The distinctive feature of such systems is the placement of the propeller electric motor outside the ship's hull. This offers significant advantages compared to the diesel-electric propulsion scheme, which is still widely used today. In AZIPOD systems, the primary element is high-torque alternating current electric motors. The application of such electric motors reduced the number of components in the power transmission compared to mechanical drive components. This allowed for the installation of a fixed-pitch propeller on the electric motor shaft. For the study, synchronous electric motors with permanent magnets were chosen. Due to their structural features and operating principles, the use of such electric motors enhances the strength and reliability of the propulsion device under various operating modes and conditions of the AZIPOD system. To determine the optimal motor design, the paper outlines its objective, which involves analyzing the peculiarities of the AZIPOD system's operation and assessing the possibility of using synchronous electric motors with permanent magnets in small-tonnage vessel systems. Accordingly, the paper conducts an analysis of general calculation methods for parameters while considering possible assumptions.References
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Copyright (c) 2023 Tatyana Pavlenko, Olena Zaritska, Anastasiia Bodnarchuk, Liubov Shyndak
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