The research on direct drives control system in the large aperture telescope

被引：0
|
作者：
Li Xiaoyan [1 ]
Zhang Zhenchao [1 ]
Wang Daxing [1 ]
机构：
[1] Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Peoples R China
来源：
SOFTWARE AND CYBERINFRASTRUCTURE FOR ASTRONOMY | 2010年 / 7740卷
关键词：
Chinese Future Giant Telescope (CFGT); Surface-mounted Permanent Magnet Synchronous Motor (SMPMSM); Space-vector PWM (SVPWM); Feedback;
D O I：
10.1117/12.855982
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A 30m giant telescope project, Chinese Future Giant Telescope (CFGT), has been proposed by Chinese astronomers. At present, a series of key techniques are being developed. This paper explores a method to control direct drive servo motor in giant telescope application, which is based on a segmented Surface-mounted Permanent Magnet Synchronous Motor (SMPMSM). The losses of SMPMSM and the method of reducing the losses are discussed in this paper. Phase-controlled rectification circuit is chosen to regulate rectified voltage according to the telescope status. Such design can decrease the losses of the motor to some extent. In the control system Space-vector PWM (SVPWM) algorithm acts as a control algorithm and three-phase voltage source inverter circuit acts as drive circuit. This project is subsidized by Chinese National Natural Science Funds (10833004).
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页数：7
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