摘要
采用S top和P lay算子表示的P randtl-Ish linsk ii回滞模型描述回滞特性,该模型便于实现控制器的设计.考虑带有未知回滞驱动且以状态空间形式表示的连续时间线性动态系统,给出了模型参考自适应控制设计方案.控制策略保证闭环系统的全局稳定性和期望的跟踪精度,有效地抑制回滞产生的不精确和振荡现象.数值仿真结果表明了控制算法的有效性.
The Prandtl-lshlinskii model expressed by play and stop operators is used to describe the unknown hysteresis, which is convenient for controller design. For the continuous-time linear dynamic control systems in state space form preceded by the unknown hysteresis, a model reference adaptive control approach is proposed. This adaptive control law ensures global stability of the closed-loop system and the tracking with a desired precision. The undesirable inaccuracies and oscillations caused by the unknown hysteresis can be mitigated effectively. The effectiveness of the proposed method is demonstrated through a simulation example.
出处
《控制与决策》
EI
CSCD
北大核心
2006年第12期1402-1406,共5页
Control and Decision
基金
国家自然科学基金项目(60374016)
广东省自然科学基金项目(020848)
关键词
模型参考自适应控制
回滞
鲁棒控制
Model reference adaptive control
Hysteresis
Robust control
