Volume 13, Issue 4 (2014)                   MJEE 2014, 13(4): 29-35 | Back to browse issues page

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Lashkarboluki F, Khosravi A, Sadati J. Gain-Scheduled Controller Design for a LPV Model of a Turboshaft Driving Variable Pitch Propeller. MJEE 2014; 13 (4) :29-35
URL: http://mjee.modares.ac.ir/article-17-7513-en.html
1- M.S. student, Department of Electrical Engineering, Babol Noshirvani University of technology,
2- Assistant Professor, Department of Electrical Engineering, Babol Noshirvani University of Technology, akhosravi, j.sadati}@nit.ac.ir,
Abstract:   (4844 Views)
This paper has proposed‎ ‎a gain-scheduled controller‎ with stability proof and guaranteed cost for a turboshaft driving a variable pitch propeller‎‎. ‎In order to overcome the complexity of the nonlinear model‎, a linear parameter varying (LPV) model is proposed for the first time which is in affine form.‎ Proposed model is established based on a family of local linear models and is suitable for LPV gain scheduling methods‎. Thus a gain scheduled design procedure is proposed which considers parameter dependent Lyapunov matrices to ensure stability and a quadratic cost function for guaranteed performance of the closed loop system‎‎. Proposed procedure also has the advantage of considering an upper bound for change rate of the scheduling signal which decreases conservativeness. ‎Controller design problem and calculating its gain matrices is formulated in a set of Linear Matrix Inequalities‎ which easily can be solved using LMILAB toolbox. Simulation results showed the effectiveness and practicality of the proposed procedure.    
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Received: 2016/08/22 | Accepted: 2014/01/21 | Published: 2016/08/22

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