A New feedback gain matrix based LQR PI Controller for Integrator time delay process

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Gazi University Journal of Science
Volume:30 Issue:4
A New feedback gain matrix based LQR PI Controller for Integrator time delay process

A New feedback gain matrix based LQR PI Controller for Integrator time delay process

Authors : Harshavardhana Reddy K, Prabhu RAMANATHAN

Pages : 232-251

View : 62 | Download : 12

Publication Date : 2017-12-11

Article Type : Research Paper

Abstract :In this paper, a Linear Quadratic Regulator insert ignore into journalissuearticles values(LQR); based PI controller is proposed for the integrator plus time delay process insert ignore into journalissuearticles values(IPTD);. In LQR PI controller design process the selection of weight matrices ‘Q’ plays a key role in order to minimize settling time, peak overshoot and Integral Errors. So, In order to improve the system performance, a new feedback gain matrix is proposed for the optimal selection of weight matrices in the controller design. First, the LQR PI controller is designed for First order time delay process insert ignore into journalissuearticles values(FOPDT); and then grabbed the formulas for IPTD process by assuming the state variable as zero. The simulation results are presented to validate the proposed method by using different IPTD process. The proposed controller is also experimentally validated on a temperature control process .
Keywords : LQR, Skew symmetric matrix, IPTD process, Control Matrix, PI Controller, Riccati equation

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