摘要
本文研究了一类时变非线性系统在输入有位置约束条件下的跟踪保性能控制问题.首先对非线性对象选择合适的特征运行状况,采用瞬时线性化技术得到多个线性化控制模型,将之看作是一个线性不确定系统,提出应用基于线性矩阵不等式的跟踪保性能控制设计控制器,然后经过推导得到了满足控制约束的充分条件,以定理的形式给出了约束条件下跟踪保性能控制器存在的充分条件.最后给出了仿真算例,仿真结果表明了所提方法的有效性和可行性.
A novel design approach of the tracking guaranteed-cost controller under input constraint is proposed in terms of linear matrix inequality. The nonlinear object model is linearized in several operating points; the obtained linear models are viewed as an uncertain system. The tracking guaranteed-cost control under input constraint is proposed. An example is given; and the simulation results demonstrate the effectiveness and the feasibility of the proposed design approach.
出处
《控制理论与应用》
EI
CAS
CSCD
北大核心
2008年第5期976-980,共5页
Control Theory & Applications
基金
航天创新基金资助项目(20060115)
国家自然科学基金资助项目(60674105).
关键词
鲁棒控制
跟踪保性能控制
线性矩阵不等式
控制约束
robust control
tracking guaranteed cost control
linear matrix inequality
constrained input
