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http://dx.doi.org/10.5394/KINPR.2015.39.6.457

Speed Control of Marine Gas Turbine Engine using Nonlinear PID Controller  

Lee, Yun-Hyung (Education & Research Team, Korea Institute of Maritime and Fisheries Technology)
So, Myung-Ok (Division of Marine Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Navigation and Port Research / v.39, no.6, 2015 , pp. 457-463 More about this Journal
Abstract
A gas turbine engine plays an important role as a prime mover that is used in the marine transportation field as well as the space/aviation and power plant fields. However, it has a complicated structure and there is a time delay element in the combustion process. Therefore, an elaborate mathematical model needs to be developed to control a gas turbine engine. In this study, a modeling technique for a gas generator, a PLA actuator, and a metering valve, which are major components of a gas turbine engine, is explained. In addition, sub-models are obtained at several operating points in a steady state based on the trial running data of a gas turbine engine, and a method for controlling the engine speed is proposed by designing an NPID controller for each sub-model. The proposed NPID controller uses three kinds of gains that are implemented with a nonlinear function. The parameters of the NPID controller are tuned using real-coded genetic algorithms in terms of minimizing the objective function. The validity of the proposed method is examined by applying to a gas turbine engine and by conducting a simulation.
Keywords
gas turbine; proportional-integral-derivative control; nonlinear controller; RCGA; performance index;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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