Variable speed wind turbine with external stiffness and rotor deviation observer

Muhammad Nizam , Kamarudin and Abdul Rashid , Husain and Mohamad Noh , Ahmad (2014) Variable speed wind turbine with external stiffness and rotor deviation observer. Applied Mechanics and Materials, 661. pp. 154-159. ISSN 1660-9336

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Abstract

Often in prominent literature, the appearance of external stiffness in wind turbine dynamical model has been neglected. The ignorance of external stiffness eliminates the presence of rotor-side angular deviation in the system dynamic. In order to give more practical look of the variable speed control system structure, we develop a linear observer to estimate the rotor angular deviation. We use Linear Quadratic Regulator (LQR) to design the observer gain, as well as the estimation error gain. To facilitate observer design, the system is linearized around its origin by using Jacobian matrix. By using the estimated rotor angular deviation, we design a variable speed control via Lyapunov and Arstein to enhance power output from the turbine.

Item Type:	Article
Uncontrolled Keywords:	wind turbine, linearization, Jacobian, linear observer, linear quadratic regulator
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Electrical Engineering > Department of Control, Instrumentation & Automation
Depositing User:	En. Muhammad Nizam Kamarudin
Date Deposited:	28 Sep 2015 01:10
Last Modified:	28 Sep 2015 01:10
URI:	http://eprints.utem.edu.my/id/eprint/14822
Statistic Details:	View Download Statistic

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