A simplified structure for robustness enhancement of time-delay systems

Kenji Natori, Kouhei Ohnishi

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

In this paper, we propose a simplified control structure for robustness enhancement of time-delay systems. We have developed a time-delay compensation method based on network disturbance (ND) concept and communication disturbance observer (CDOB). The method effectively compensates time-delay effect and stabilizes time-delay systems. It has been validated that the effectiveness of the time-delay compensation is equivalent to Smith predictor. However, a defect in robustness on model errors has been revealed. Steady-state errors depending on model errors arise in responses. In order to handle the problem, various approaches have been proposed so far. However, sufficient robustness enhancement without degradation of stability and control performance has not been achieved yet. Therefore, this paper proposes a simplified control structure of time-delay systems without CDOB. The proposed structure accomplishes robustness enhancement on model errors without significant degradation of performance. The stability and the transient characteristics are analyzed and the validity is clarified. Then, the effectiveness of the proposed structure is validated by simulation results.

本文言語English
ホスト出版物のタイトルAMC2010 - The 11th IEEE International Workshop on Advanced Motion Control, Proceedings
ページ512-517
ページ数6
DOI
出版ステータスPublished - 2010 6 25
イベント2010 11th IEEE International Workshop on Advanced Motion Control, AMC2010 - Nagaoka, Niigata, Japan
継続期間: 2010 3 212010 3 24

出版物シリーズ

名前International Workshop on Advanced Motion Control, AMC

Other

Other2010 11th IEEE International Workshop on Advanced Motion Control, AMC2010
国/地域Japan
CityNagaoka, Niigata
Period10/3/2110/3/24

ASJC Scopus subject areas

  • 制御およびシステム工学
  • モデリングとシミュレーション
  • コンピュータ サイエンスの応用
  • 電子工学および電気工学

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