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首页> 外文期刊>IEEE Transactions on Control Systems Technology >An H/sub /spl infin// almost disturbance decoupling robust controller design for a piezoelectric bimorph actuator with hysteresis
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An H/sub /spl infin// almost disturbance decoupling robust controller design for a piezoelectric bimorph actuator with hysteresis

机译:具有磁滞的压电双压电晶片执行器的H / sub / spl infin //几乎干扰解耦鲁棒控制器设计

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摘要

A robust controller design for a piezoelectric bimorph nonlinear actuator is considered. The nonlinear dynamics of the actuator are first linearized using the stochastic equivalent linearization method and reformulated into a standard almost disturbance decoupling problem. Then a robust controller, which is explicitly parameterized by two tuning parameters, is carried out using a so-called asymptotic time-scale and eigenstructure assignment approach. The parameterized controller can be tuned by adjusting the parameters to achieve disturbance decoupling and other design goals for the problem that we consider. Simulation results of time-domain responses show that the design is very successful in terms of steady-state tracking error and settling time as well as other performances.
机译:考虑了压电双压电晶片非线性执行器的鲁棒控制器设计。首先使用随机等效线性化方法对执行器的非线性动力学进行线性化,然后重新格式化为标准的几乎干扰解耦问题。然后,使用所谓的渐近时标和本征结构分配方法,执行由两个调整参数明确参数化的鲁棒控制器。可以通过调整参数来调整参数化控制器,以实现干扰耦合和我们考虑的其他设计目标。时域响应的仿真结果表明,该设计在稳态跟踪误差和建立时间以及其他性能方面非常成功。

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