Pseudo Youla-Kucera parameterization with control of the waterbed effect for local loop shaping

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• 作者：Xu Chen^a ; ¹ ; ^{xchen@engr.uconn.edu" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Tianyu Jiang^a ; ^{tianyu.jiang@uconn.edu" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Masayoshi Tomizuka^b ; ^{tomizuka@me.berkeley.edu" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Digital control ; Vibration rejection ; Loop shaping ; Active noise control ; Youla&ndash ; Kucera parameterization
• 刊名：Automatica
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：62
• 期：Complete
• 页码：177-183
• 全文大小：718 K

文摘

This paper discusses a discrete-time loop shaping algorithm for servo enhancement at multiple wide frequency bands. Such design considerations are motivated by a large class of practical control problems such as vibration rejection, active noise control, and periodical reference tracking; as well as recent novel challenges that demand new design in the servo technologies. A pseudo Youla–Kucera parameterization scheme is proposed using the inverse system model to bring enhanced control at selected local frequency regions. Design methodologies are created to control the waterbed amplifications that come from the fundamental limitations of feedback control. Finally, simulation and experimental verification are conducted in precision control and semiconductor manufacturing.