Simplified adaptive model output following control for plants with unmodelled dynamics
Simplified adaptive model output following control for plants with unmodelled dynamics
复制标题
针对具有未建模动态的工厂的简化自适应模型输出跟随控制
DOI：
10.1080/00207179608921617
复制
发表时间：
1996
影响因子：
2.1
通讯作者：
Z. Iwai
中科院分区：
文献类型：
--
作者：
I. Mizumoto;Z. Iwai
本文考虑了一种利用被控对象的几乎严格正真实的（ASPR）特性的自适应模型输出跟踪控制。如果存在一个静态输出反馈，使得闭环传递函数是严格正真实的，则称被控对象是ASPR。针对ASPR对象，提出了一种结构简单的自适应模型输出跟踪控制系统的设计方案。ASPR条件对实际应用中的设备施加了严格的限制。然而，我们可以构建一个ASPR增广的对象，这被视为一个几乎新的控制对象，通过实施一个并行前馈补偿器或预补偿器的对象。在考虑对象不确定性的基础上，提出了使非ASPR对象近似ASPR的补偿器设计方案。因此，可以扩大提案的适用类别。通过数值仿真验证了所提方法的有效性。
In this paper, an adaptive model output following control utilizing almost strictly positive real (ASPR) characteristics of the plant is considered. The plant is said to be ASPR if there exists a static output feedback such that the resulting closed-loop transfer function is strictly positive real. A design scheme of an adaptive model output following control system having a simple structure is proposed for the ASPR plant. The ASPR condition imposes severe restrictions on the plant with relation to the practical application. However, we can construct an ASPR augmented plant, which is regarded as a virtually new controlled plant, by implementing a parallel feedforward compensator or pre-compensator on the plant. The design scheme of such compensators that make the non-ASPR plant virtually ASPR is proposed by taking plant uncertainties into consideration. As a result, the applicable class of the proposal can be expanded. The effectiveness of the proposed methods is confirmed through numerical simulations.