Zero Power Control Based on External Force Feedback for Helical Motor
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- Koyama Masato
- Department of Electrical and Computer Engineering, Yokohama National University
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- Fujimoto Yasutaka
- Department of Electrical and Computer Engineering, Yokohama National University
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説明
For an assist device, a safe and compact high output actuator is desired. The authors have proposed a helical motor that consists of a helical mover and stator. In the gap control of this motor, zero power control is applied to save power for magnetic levitation. However, when a disturbance force is imposed upon the motor, the gap response with the zero power controller has an inverse response. To solve this problem, a new zero power control based on external force feedback is proposed, which is used to generate both the gap displacement and gap velocity references. Experimental results and a mathematical analysis show that the proposed method suppresses the inverse response well in position control and force control.
収録刊行物
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- IEEJ Journal of Industry Applications
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IEEJ Journal of Industry Applications 5 (4), 314-320, 2016
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