NDLI: Modeling and control of a marine diesel engine driving a synchronous machine and a propeller

Content Provider	IEEE Xplore Digital Library
Author	Tuffaha, M. Gravdahl, J.T.
Copyright Year	2014
Description	Author affiliation: Dept. of Eng. Cybern., Norwegian Univ. of Sci. & Technol., Trondheim, Norway (Tuffaha, M.; Gravdahl, J.T.)
Abstract	In some designs of power systems for marine vessels, large-size or medium-size Diesel engine(s) is(are) used to drive one synchronous machine to generate electricity, and the main propeller, simultaneously, through a gear box. Such systems are subject to disturbances that may affect performance and fuel consumption. The most important disturbances occur due to the propeller torque, and load demand on the electric network. In this work, a simplified state-space model is suggested for such systems based on well known models of each component. The model considers the dynamics of the shaft, Diesel engine, and synchronous machine with the propeller in their simplest models. The output voltage and torque coefficient were modeled as uncertain parameters. Then, exploiting feedback linearization, two controllers were suggested for the proposed model to regulate the rotational speed of the shaft. Firstly, by pole placement. The second is a robust controller by mixed $H_{2}/H_{∞}$ synthesis. The results of the simulations of the proposed controller are presented and compared.
Starting Page	897
Ending Page	904
File Size	275815
Page Count	8
File Format	PDF
ISBN	9781479974092
DOI	10.1109/CCA.2014.6981450
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-08
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Torque Propellers Shafts Diesel engines Synchronous machines Mathematical model Velocity control
Content Type	Text
Resource Type	Article

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