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Development of Neural Network-based Explicit Force Control with Disturbance Observer

Development of Neural Network-based Explicit Force Control with Disturbance Observer

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カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門(英文)

発行日: 2021/03/01

タイトル(英語): Development of Neural Network-based Explicit Force Control with Disturbance Observer

著者名: Toshiaki Okano (Graduate School of Science and Technology, Keio University), Takahiro Nozaki (Department of System Design Engineering, Keio University/Massachusetts Institute of Technology), Toshiyuki Murakami (Department of System Design Engineering, Kei

著者名(英語): Toshiaki Okano (Graduate School of Science and Technology, Keio University), Takahiro Nozaki (Department of System Design Engineering, Keio University/Massachusetts Institute of Technology), Toshiyuki Murakami (Department of System Design Engineering, Kei

キーワード: disturbance observer,force control,neural network

要約(英語): Human support robots are in high demand and the performance enhancement through force control has been extensively studied. However, the design of the force controller and selection of appropriate gains are sometimes difficult because they are affected by the conditions of motion such as environmental impedance or model uncertainties. This study discusses force control with a disturbance observer and applies a neural network (NN) into its controller; the NN works as both the feedback and feedforward components. The contribution of this study is to show the development method of force control using disturbance observer and a NN, which enhances the performance of force control from the perspective of both feedback and feedforward components. The structure of the controller and composition of the NN were selected through simulation results; moreover, the compensator based on NN was designed in a frequency range higher than the cutoff frequency of the observer with a small number of hidden layers. Moreover, this study discusses a training method of weights in real time. Simulations and experiments were performed for showing the effectiveness of the proposal.

本誌: IEEJ Journal of Industry Applications Vol.10 No.2 (2021) Special Issue Ⅰ on “Motion Control and its Related Technologies”  Special Issue Ⅱ on “Advanced Power Electronics Technologies”

本誌掲載ページ: 153-164 p

原稿種別: 論文/英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/10/2/10_20004711/_article/-char/ja/

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