On nonlinear approximate optimal controllers for disturbance rejection

被引：0
|
作者：
Gao, De-Xin [1 ]
Zhang, Wen-Wu [2 ]
机构：
[1] Qingdao Univ Sci & Technol, Coll Automat & Elect Engineer, Qingdao 266042, Peoples R China
[2] Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266071, Peoples R China
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE INFORMATION COMPUTING AND AUTOMATION, VOLS 1-3 | 2008年
关键词：
nonlinear systems; disturbances; approximate optimal controller;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper considers the feedforward and feedback optimal controller design problem for a class of nonlinear systems with external disturbances. An approximate optimal control algorithm is developed. By constructing the sequences to decoupling the nonlinear two-point boundary value (TPBV) problems, the original optimal control problem is transformed into a sequence of nonhomogeneous linear TPBV problems. The optimal control law is obtained by iterative solving the constructing sequences, which consists of accurate linear feedforward and feedback terms and a nonlinear compensation term. By using the finite-step iteration of the nonlinear compensation sequence, we can obtain a suboptimal control law. Simulations indicate the algorithm is efficient and robust with respect to persistent disturbances.
引用
收藏
页码：239 / +
页数：2
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