Next Article in Journal
Analysis of Dynamic Characteristics of an Ultra-Large Semi-Submersible Floating Wind Turbine
Next Article in Special Issue
Fuel Consumption and CO2 Emission Reductions of Ships Powered by a Fuel-Cell-Based Hybrid Power Source
Previous Article in Journal
Estimating Connectivity of Hard Clam (Mercenaria mercenaria) and Eastern Oyster (Crassostrea virginica) Larvae in Barnegat Bay
Open AccessArticle

Large-Scale Electric Propulsion Systems in Ships Using an Active Front-End Rectifier

1
Department of Marine System Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Busan 49112, Korea
2
Department of Electricity, Ulsan Campus of Korea Polytechnics, 155 Sanjeon-gil, Ulsan 44482, Korea
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(6), 168; https://doi.org/10.3390/jmse7060168
Received: 1 May 2019 / Revised: 24 May 2019 / Accepted: 30 May 2019 / Published: 1 June 2019
(This article belongs to the Special Issue Ship Lifecycle)
In the case of the electric propulsion system on the vessel, Diode Front End (DFE) rectifiers have been applied for large-sized ships and Active Front End (AFE) rectifiers have been utilized for small and medium-sized ships as a part of the system. In this paper, we design a large electric propulsion ship system using AFE rectifier with the proposed phase angle detector and verify the feasibility of the system by simulation. The phase angle derived from the proposed phase angle detection method is applied to the control of the AFE rectifier instead of the zero-crossing method used to detect the phase angle in the control of the conventional AFE rectifier. We compare and analyze the speed control, Direct Current (DC)-link voltage, harmonic content and measurement data of heat loss by inverter switch obtained from the simulation of the electric propulsion system with the 24-pulse DFE rectifier, the conventional AFE rectifier, and the proposed AFE rectifier. As a result of the simulation, it was confirmed that the proposed AFE rectifier derives a satisfactory result similar to that of a 24-pulse DFE rectifier with a phase shifting transformer installed according to the speed load of the ship, and it can be designed and applied as a rectifier of a large-sized vessel. View Full-Text
Keywords: electric propulsion system; DFE rectifier; AFE rectifier; phase angle detector electric propulsion system; DFE rectifier; AFE rectifier; phase angle detector
Show Figures

Figure 1

MDPI and ACS Style

Jeon, H.; Kim, J.; Yoon, K. Large-Scale Electric Propulsion Systems in Ships Using an Active Front-End Rectifier. J. Mar. Sci. Eng. 2019, 7, 168.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop