外乱オブザーバを用いた空気圧マニピュレータの力制御

• 則次 俊郎

  岡山大学工学部

• 朴 〓圭

  岡山大学大学院自然科学研究科

書誌事項

タイトル別名

• Force Control of Pneumatic Manipulator Using Disturbance Observer.

抄録

In this paper, a compensation method of disturbances using a disturbance observer is proposed for a force control of a pneumatic robot manipulator. The generated torque by a pneumatic actuator can be estimated based on the pressure signals. The inner torque control system is constructed by feeding back the generated torque to improve the dynamic characteristics of the actuator. In order to reduce the influence of disturbances comprising friction torque, parameter variations of plant and environment and so on, the reaction torque control system is constructed with a disturbance observer which estimates the disturbances based on the reference input to the inner torque control system and the reaction torque sensed with a force sensor. Further, to control the reaction torque without a force sensor, we construct the reaction torque estimation observer using the generated torque, the nominal friction torque and the angular velocity. In the above reaction torque control system, the estimated reaction torque is used instead of the sensed torque, so that the force sensorless torque control system can be constructed. From some simulations and experiments, it is confirmed that the proposed control system is effective to improve the robustness for the friction torque and the parameter change of object in the force control of a pneumatic robot manipulator.

収録刊行物

• 日本ロボット学会誌

  日本ロボット学会誌 13 (5), 711-719, 1995

  一般社団法人 日本ロボット学会

キーワード

• Robust Control
• Disturbance Observer
• Pneumatic Robot
• Force Control
• Force sensorless Control

詳細情報

• CRID: 1390001204727191936
• NII論文ID: 10011650749
• NII書誌ID: AN00141189
• DOI: 10.7210/jrsj.13.711
• ISSN: 18847145
• ISSN: 02891824
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可