Reaction force estimation of piezoelectric actuator by charge observation

Shinnosuke Yamaoka, Kouhei Ohnishi

研究成果: Conference contribution

抄録

Stacked piezoelectric actuators are suitable for micro manipulation, because they have high resolution and large thrust force. However, thrust force of the actuator contains hysteresis. The hysteresis deteriorates robust control performance and the accuracy of reaction force estimation. Hysteresis compensation methods using models have been proposed, although the accuracy of the model is deteriorated in high-frequency input. Hence, disturbance observer (DOB) and reaction force observer (RFOB) without hysteresis model are proposed in this paper. The RFOB estimates reaction force by observing accumulated charge on the actuator. In order to verify the validity of the proposal, experiments were performed. Experimental results showed that proposed method enabled robust control and reaction force estimation.

本文言語English
ホスト出版物のタイトル2013 IEEE International Conference on Mechatronics, ICM 2013
ページ192-197
ページ数6
DOI
出版ステータスPublished - 2013 7 1
イベント2013 IEEE International Conference on Mechatronics, ICM 2013 - Vicenza, Italy
継続期間: 2013 2 272013 3 1

出版物シリーズ

名前2013 IEEE International Conference on Mechatronics, ICM 2013

Other

Other2013 IEEE International Conference on Mechatronics, ICM 2013
国/地域Italy
CityVicenza
Period13/2/2713/3/1

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 機械工学

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