Closed-Loop System Identification by Using Multi-Rate Sampling Scheme

使用多速率采样方案进行闭环系统识别

• 批准号: 11650454
• 负责人: SANO Akira
• 金额: $ 2.11万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650454/
• 关键词: System identification; Adaptive control; Closed-loop identification; Stabilized control; Magnetic suspension system; Subspace method; Estimation of DOA

A new direct closed-loop identification method only using the plant input/output data acquired through an output inter-sampling scheme is presented in this study. By taking the faster sampling of the system output than the control interval, we can clarify that the inter-sampled plant model can also be described by the SIMO model structure, which can provide the identifiability of the closed-loop. One of the advantages is that the proposed identification method using the inter-sampled output observations can remove the ordinary restrictive identifiability condition, and it is not required that the reference input holds the persistently exciting (PE) property. Its effectiveness is demonstrated in numerical simulation treating a generalized predictive control, and an experimental study of a magnetic suspension system stabilized by PID controller. We also clarified that the

本文提出了一种新的直接闭环辨识方法，该方法仅使用通过输出互采样方案获得的对象输入/输出数据。通过对系统输出进行比控制间隔更快的采样，我们可以澄清，间采样的对象模型也可以由SIMO模型结构来描述，这可以提供闭环的可辨识性。该辨识方法的优点之一是，利用互采样输出观测值可以消除通常的可辨识性限制条件，并且不要求参考输入具有持续激励（PE）特性。在广义预测控制的数值仿真和PID控制器稳定磁悬浮系统的实验研究中，证明了该方法的有效性。我们还澄清，

项目成果

K.Hidaka: "Adaptive control design for linear time-varying system based on internal model control"IECIE Trans.Fundamentals. Vol.E82-A,No.. -Accepted (1999)

K.Hidaka：《基于内模型控制的线性时变系统自适应控制设计》IECIE Trans.Fundamentals。

江帆: "経路変動を考慮したマルチチャンネル形適応能動騒音制御"電気学会論文誌D. Vol.120D,No.2. 206-215 (2000)

Efan：“考虑路径变化的多通道自适应主动噪声控制”日本电气工程师协会会刊D.第120D卷，第206-215号（2000年）。

L.Sun: "Blind identification of transfer function model"IECIE Trans.Fundamentals. Vol.E82-A,No.8. 1391-1401 (1999)

L.Sun：《传递函数模型的盲辨识》IECIE Trans.Fundamentals。

J.Xin and A.Sano: "Linear prediction approach to direction estimation of cyclostationary signals in multipath environment"IEEE Trans, Signal Processing. Vol.49, No.4 (in print). (2001)

J.Xin 和 A.Sano：“多径环境中循环平稳信号方向估计的线性预测方法”IEEE Trans，信号处理。

孫 連明: "直接法による不安定系に閉ループ同定法と磁気浮上系への応用"計測自動制御学会論文集. Vol.36. -Accepted (2000)

孙连明：“直接法对不稳定系统的闭环辨识方法及其在磁悬浮系统中的应用”，仪器与控制工程师协会学报，第 36 卷。-已接受（2000 年）