Robust Control of CD-ROM Drives Using Multirate Disturbance Observer.

• OKUYAMA Atsushi

• SOMA Masato

• YOSHIDA Takashi

• YANAGIHARA Norihisa

• MII Yasuhiro

• YAMADA Hidehito

書誌事項

タイトル別名

• Robust Control of CD-ROM Drives Using M

抄録

This paper discusses the design and experimental verification of a new digital control method for suppressing disturbances in the positioning control system of a CD-ROM drive. The positioning control has generally been carried out by applying a conventional compensator, e.g. a phase lag-lead compensator, and implemented as digital control using the digital signal processor(DSP). We apply a disturbance observer to obtain satisfactory disturbance suppression as the disc rotation speed becomes higher. However, extra processing for calculating the disturbance observer is required. Therefore, we propose a multirate sampling scheme to decrease the realtime computation burden on DSP. The disturbance observer is computed with a lower sampling rate than the conventional compensator. The experimental results show that the positioning control system using the proposed multirate sampling scheme can reduce the positioning error caused by disturbances like disc vibration.

収録刊行物

• JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing

  JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing 41 (4), 806-812, 1998

  一般社団法人 日本機械学会

キーワード

• Robust Control
• Digital Control
• Observer
• Positioning
• Optical Instrument

詳細情報

• CRID: 1390001204679221376
• NII論文ID: 130003914962
• NII論文ID: 110004155943
• NII書誌ID: AA11179487
• DOI: 10.1299/jsmec.41.806
• ISSN: 1347538X
• ISSN: 13447653
• NDL書誌ID: 4627560
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4627560
• Web Site: http://www.jstage.jst.go.jp/article/jsmec1997/41/4/41_4_806/_pdf
• 本文言語コード: en
• データソース種別:
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