1. Modeling and Control of Ultra-High Speed Servo System Using Piezoactuator
- Author
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Donghao Tang, Kenzo Nonami, Yoshihiro Taniguti, Hideaki Ogawa, and Mitsuo Hirata
- Subjects
Engineering ,Observer (quantum physics) ,business.industry ,Mechanical Engineering ,System identification ,Servo control ,Control engineering ,Servomechanism ,Sliding mode control ,Industrial and Manufacturing Engineering ,law.invention ,Mechanics of Materials ,Control theory ,law ,Control system ,business ,Actuator ,Digital signal processing - Abstract
This paper is concerned with a study of the high performance realization of electronic engrave technology. Using actual piezo actuator for ultra-high speed electronic engrave machine, we designed several control systems to realize a good performance, after the system identification and modeling. The designed control strategies consist of (i) LQI servo control, (ii) Two-degree-of-freedom control system, (iii) Sliding mode control with observer, (iv) Sliding mode control with output feedback. Incidentally, we also find out the compulational speed limit of DSP system via the experiments. We realized the good performance using the two-degree-of-freedom control and the sliding mode control with observer. The most important contribution of this study is that the experimental results can be directly used to commercial machine.
- Published
- 2000