Title :
A novel approach for state estimation
Author :
Choi, J.Y. ; Choy, I. ; Kim, K.H. ; Park, J.M.
Author_Institution :
Div. of Electron. & Inf. Technol., Korea Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
A state estimator design, based on an identified linear model of a quasi-linear system, is presented for use in the design of a feedback controller. Without a priori information of the plant dynamics, the present method estimates the states to the actual shape of the true state trajectories using only measured input/output data. This novel state estimation method is developed from a selected best pseudo-observable form of multivariable system to obtain an estimation of a particular set of state variables for the identified system model. The results presented here provide a more appropriate discrete-time state estimator for feedback control in comparison with a Luenberger type state estimator
Keywords :
MIMO systems; control system synthesis; feedback; linear systems; multivariable control systems; state estimation; discrete-time state estimator; feedback controller design; identified linear model; multivariable system; quasi-linear system; state estimator design; state variables; true state trajectories; Control systems; Delay estimation; Feedback control; Information technology; MIMO; Nonlinear systems; Observability; Observers; Shape measurement; State estimation;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2775-6
DOI :
10.1109/IECON.1996.570663
