Observer-based controller for discrete-time systems: a state dependent Riccati equation approach

被引：10
|
作者：
Hassan, Mohamed F. [1 ]
机构：
[1] Kuwait Univ, Dept Elect Engn, Safat 13060, Kuwait
来源：
NONLINEAR DYNAMICS | 2012年 / 70卷 / 01期
关键词：
State-Dependent Riccati Equation (SDRE); Nonlinear estimation; Stability; Discrete-time systems; Power systems; FEEDBACK-CONTROL; ATTITUDE-CONTROL;
D O I：
10.1007/s11071-012-0488-x
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, an observer-based controller for discrete-time nonlinear dynamical systems is proposed. After transforming the nonlinear system to a linear structure having state-dependent coefficient matrices (SDC), a recursive regularized least-square (RLS) state estimator is developed. The observed states are then used to generate either a constrained or unconstrained state feedback controller using the state dependent Riccati equation (SDRE) approach. The stability of the observer-based control system is rigorously analyzed in a theoretical frame work. Applications to different numerical examples as well as to a practical case study demonstrate the effectiveness of the proposed procedure.
引用
收藏
页码：693 / 707
页数：15
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