中国科学技术大学学报 ›› 2014, Vol. 44 ›› Issue (1): 79-86.DOI: 10.3969/j.issn.0253-2778.2014.01.010

• 论著 • 上一篇    

输出干扰对基于逆模型的迭代学习控制的影响

刘召杰   

  1. 国家电网上海市电力公司电力科学研究院,上海 200473
  • 收稿日期:2013-09-29 修回日期:2013-12-27 接受日期:2013-12-27 出版日期:2013-12-27 发布日期:2013-12-27

Effect of output noise in inverse-model-based iterative learning control

LIU Shaojie   

  1. Electric Power Research Institute, SMEPC, Shanghai 200437, China
  • Received:2013-09-29 Revised:2013-12-27 Accepted:2013-12-27 Online:2013-12-27 Published:2013-12-27
  • About author:LIU Shaojie, male, born in 1980, PhD. Research field: Automation of electricpower systems.

摘要: 针对具有输出干扰的线性时不变单输入单输出系统,首次运用基于逆模型的迭代学习控制理论分析其轨迹跟踪控制问题.通过严格的数学分析,提出了无干扰输出误差的数学期望计算公式(欧几里得范数)并证明了其收敛性. 进而给出了其频域分析公式,证明了系统参数、噪声光谱和基于逆模型的迭代学习控制参数对收敛性的影响.系统仿真实验结果验证了以上的理论发现.

关键词: 基于逆模型的迭代学习控制, 输出干扰, 方差, 数学期望, 欧几里得范数, 频域分析

Abstract: Inverse-model-based iterative learning control (ILC) for linear-time invariant, single-input single output (SISO) systems subject to output noise is proposed with the intent of predicting expectation of the underlying “noise-free” mean square error (Euclidean norm) on each iteration. Frequency domain formulae are derived to provide an insight into links between plant characteristics, noise spectra and inverse-model-based ILC parameters. Simulations are used to illustrate the theoretical findings.

Key words: inverse-model-based iterative learning control, output noise, variance, expectation, Euclidean norm, frequency domain

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