DocumentCode :
1516211
Title :
An Improved Model-Based Controller for Power Turbine Generators on Grid System of Shipboard
Author :
Matsui, Nobumasa ; Kurokawa, Fujio
Author_Institution :
Choryo Control Syst. Co., Ltd., Nagasaki, Japan
Volume :
48
Issue :
4
fYear :
2012
Firstpage :
1237
Lastpage :
1242
Abstract :
The purpose of this paper is to present an improved model-based controller for power turbine generators (PTGs) on a shipboard grid system. Propulsion can be accomplished by means of main diesel engines. One arrangement for the onboard power requirements of merchant ships is the PTG extract part of the exhaust gas from the main diesel engines. The speed control, however, is difficult to keep in place because of fouling conditions and variations across time. The proposed controller is evaluated by comparing it with the conventional controller in a simulation. Furthermore, the proposed controller is evaluated in a prototype. In the simulation result using the proposed controller, the limit speed overshooting as a transient response is improved by more than 25 %. In the prototype test, the limit frequency overshooting is 0.60%, and the settling time is 3.8 s. Hence, the proposed controller is confirmed to have an excellent property.
Keywords :
diesel engines; marine propulsion; ships; turbines; velocity control; PTG; diesel engines; limit frequency overshooting; limit speed overshooting; merchant ships; model-based controller; power turbine generators; propulsion; shipboard grid system; speed control; transient response; Adaptation models; Frequency control; Generators; Prototypes; Transient response; Turbines; Valves; Adaptive control; cogeneration; distributed power generation; energy conversion; frequency control; marine equipment; power control; power system dynamics; power system modeling; power system simulation; system identification; turbomachinery; waste recovery;
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/TIA.2012.2199273
Filename :
6199976
Link To Document :
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