Youla Parameterization-Based Fractional Repetitive Control of Arbitrary Frequency Disturbance Rejections for Line-of-Sight Stabilization
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS(2024)
Abstract
This article proposes a fractional repetitive control (FRC) based on Youla parameterization to reject arbitrary disturbances up to the Nyquist frequency. This control strategy transforms disturbance rejections into the design and optimization of the FRC. The improved conjugate repetitive controller incorporates an all-pass fractional delay filter (ADFDF) to reject arbitrary aperiodic and periodic disturbances, while mitigating the waterbed effect at nonrepetitive frequencies. Furthermore, due to time delays limiting both the control bandwidth and the strength of notches in the FRC, an extra time delay factor is introduced to ensure that time delays characterize one at the specific frequency. Consequently, the arbitrary disturbances occurring within the Nyquist frequency are effectively suppressed. Simulation analyses and experimental results demonstrate that the proposed method enhances the disturbance rejection capability of the line-of-sight (LOS) stabilization system.
MoreTranslated text
Key words
All-pass fractional delay filter (APFDF),disturbance rejection,fractional repetitive control (FRC),line-of-sight (LOS) stabilization,Nyquist frequency,Youla parameterization
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined