A precise speed tracking control of ultrasonic motors via sampled-data H∞ control

被引:0
|
作者
Kobayashi, Y [1 ]
Hujioka, H [1 ]
Vongsaroj, T [1 ]
机构
[1] Nagaoka Univ Technol, Nagaoka, Niigata 9452188, Japan
来源
IEEE ICIT' 02: 2002 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY, VOLS I AND II, PROCEEDINGS | 2002年
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中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper we consider synthesis problems for precise speed control systems of ultrasonic motors. In the previous work, it has been empirically known that in continuous-time H-infinity control based synthesis, conservative evaluation of modeling error is needed to avoid speed fluctuation in high frequency range. However, this conservativeness should be reduced unless the speed fluctuation in high frequency range occurs, since too large conservativeness causes tracking performance degradation in low frequency range. In this paper, it is shown that desirable control experiment results are directly obtained by sampled-data H-infinity control synthesis without such conservativeness in modelings.
引用
收藏
页码:730 / 734
页数:5
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