| Control system for multi-motor friction drive of large-scale optical telescope | |
| Mao Yao; Ma Jia-Guang; Bao Qi-Liang; Yang Song-Hua | |
| Volume | 7281 |
| 2009 | |
| Language | 英语 |
| Indexed By | Ei |
| Subtype | 会议论文 |
| Abstract | In terms of large-scale optical telescope, the design of multi-motor friction drive is obviously advantageous than that of single motor direct drive on the expense for manufacture of motors. However, to keep the high accuracy of tracking of multi-motor friction drive in certain velocity and acceleration, synchronized control for multi-motor and compensation to the mechanical resonance are needed. After designing appropriate multi-motor drive and synchronized compensation device, we overcame the interference among running motors, restricted the velocity difference in smooth running to a smaller range, and set a good foundation for the design of correcting parameter. Besides, to expand the closed loop bandwidth of the system, the control loop model has been identified, and the compensator based on the identified model effectively improved the influence of the mechanical resonance. The experimental results showed that for multi-motor friction drive of the 1.2-m large-scale Alt-Azimuth optical telescope, the proposed approach obtained high accuracy when running at the max velocity of 3 deg/s.; In terms of large-scale optical telescope, the design of multi-motor friction drive is obviously advantageous than that of single motor direct drive on the expense for manufacture of motors. However, to keep the high accuracy of tracking of multi-motor friction drive in certain velocity and acceleration, synchronized control for multi-motor and compensation to the mechanical resonance are needed. After designing appropriate multi-motor drive and synchronized compensation device, we overcame the interference among running motors, restricted the velocity difference in smooth running to a smaller range, and set a good foundation for the design of correcting parameter. Besides, to expand the closed loop bandwidth of the system, the control loop model has been identified, and the compensator based on the identified model effectively improved the influence of the mechanical resonance. The experimental results showed that for multi-motor friction drive of the 1.2-m large-scale Alt-Azimuth optical telescope, the proposed approach obtained high accuracy when running at the max velocity of 3 deg/s. |
| Conference Name | Proceedings of SPIE |
| Conference Date | 2009 |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/7680 |
| Collection | 光电探测与信号处理研究室（五室） |
| Corresponding Author | Mao Yao |
| Affiliation | 中国科学院光电技术研究所 |
| Recommended Citation GB/T 7714 | Mao Yao,Ma Jia-Guang,Bao Qi-Liang,et al. Control system for multi-motor friction drive of large-scale optical telescope[C],2009. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2009-252.pdf（284KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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