Undershoot Reduction for Plants with Real Unstable Zeros by Time-Varying Controller Design

• Hadary Ferry

  Kyushu Institute of Technology, Department of Control Systems Engineering and Science

• Ohkawa Fujio

  Kyushu Institute of Technology, Department of Control Systems Engineering and Science

抄録

It is well known that undershoot phenomena are inevitable for plants having real unstable zeros. In this paper, we first investigate the undershoot phenomena caused by real ustable zeros of the plant to be controlled theoretically. We then propose methods of reducing the undershoot amount for a plant with real unstable zeros. The ideas are an introduction of exponential decay factor in the performance index in optimal LQR, and time-varying controller (digital control) with piecewise constant hold, where in this design enables us to change the inter-sample control input. We can confirm the effectiveness by simulations.

収録刊行物

• 電気学会論文誌Ｃ（電子・情報・システム部門誌）

  電気学会論文誌Ｃ（電子・情報・システム部門誌） 126 (7), 883-887, 2006

  一般社団法人 電気学会

キーワード

• undershoot
• digital control
• piecewise constant hold

詳細情報

• CRID: 1390001204605950336
• NII論文ID: 10018146534
• NII書誌ID: AN10065950
• DOI: 10.1541/ieejeiss.126.883
• ISSN: 13488155
• ISSN: 03854221
• NDL書誌ID: 8022592
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8022592
• Web Site: http://www.jstage.jst.go.jp/article/ieejeiss/126/7/126_7_883/_pdf
• 本文言語コード: en
• データソース種別:
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