Retrofit Control with Approximate Environment Modeling

Retrofit Control with Approximate Environment Modeling
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通过近似环境建模进行改造控制

DOI:
10.1016/j.automatica.2019.06.010
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发表时间:
2019
期刊:
影响因子:
6.4
通讯作者:
Jun-ichi Imura
Jun-ichi Imura
中科院分区:
计算机科学2区
文献类型:
--
作者:
Takayuki Ishizaki;Takahiro Kawaguchi;Hampei Sasahara;Jun-ichi Imura

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在本文中,我们开发了一种改进的控制方法与近似环境建模。改造控制是一种针对一般稳定网络系统的模块化控制方法,该系统的子系统由相应的子系统操作员管理。从执行改型控制器设计的单个子系统操作员的观点来看,由所有其他操作员管理的子系统可以被视为一个环境,假设其完整的系统模型不可用。所提出的改造控制与近似环境建模具有的优点是,所得到的控制系统的稳定性得到鲁棒保证,而不管不仅近似环境模型的稳定性,而且建模误差的大小,只要网络系统在实施改造控制之前最初是稳定的。这种鲁棒性对于将现有的未知环境的系统辨识方法结合起来具有实际意义,因为所辨识的模型的准确性在现实中可能既不可靠也不可保证。此外,我们进行了控制性能分析表明,所得到的性能可以通过调整近似环境建模的精度进行调节。二阶振子网络的数值实验表明,所提出的改造控制的效率。
In this paper, we develop a retrofit control method with approximate environment modeling. Retrofit control is a modular control approach for a general stable network system whose subsystems are supposed to be managed by their corresponding subsystem operators. From the standpoint of a single subsystem operator who performs the design of a retrofit controller, the subsystems managed by all other operators can be regarded as an environment, the complete system model of which is assumed not to be available. The proposed retrofit control with approximate environment modeling has an advantage that the stability of the resultant control system is robustly assured regardless of not only the stability of approximate environment models, but also the magnitude of modeling errors, provided that the network system before implementing retrofit control is originally stable. This robustness property is practically significant to incorporate existing system identification methods of unknown environments, because the accuracy of identified models may neither be reliable nor assurable in reality. Furthermore, we conduct a control performance analysis to show that the resultant performance can be regulated by adjusting the accuracy of approximate environment modeling. The efficiency of the proposed retrofit control is shown by numerical experiments on a network of second-order oscillators.
所有状态反馈改造控制器的参数化
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发表时间: 2018
期刊: 2018 IEEE Conference on Decision and Control (CDC)
影响因子: --
作者:
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线性二次控制的分布式设计方法及其局限性
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发表时间: 2010
影响因子: 6.8
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DOI: 10.1109/jproc.2018.2812298
发表时间: 2018-05-01
影响因子: 20.6
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