Design of one large telescope direct drive control system based on TMS320F28xx

Xiao-li Song; Da-xing Wang; Chao Zhang; Zhen-chao Zhang; Li-yan Chen; Chang-zhi Ren

doi:10.1117/12.2055134

5 August 2014 Design of one large telescope direct drive control system based on TMS320F28xx

Xiao-li Song, Da-xing Wang, Chao Zhang, Zhen-chao Zhang, Li-yan Chen, Chang-zhi Ren

Proceedings Volume 9150, Modeling, Systems Engineering, and Project Management for Astronomy VI; 91501L (2014) https://doi.org/10.1117/12.2055134
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The mount drive control is the key technique which mostly affects astronomical telescope’s resolution and its speed. However, the ultra -lower speed and the giant moment of inertia make it very difficult to be controlled. In this paper, one segmented permanent-magnet synchronous motor (PMSM), 4m diameter, is suggested for the mount driving. A method is presented to drive the motor directly, which is based on TMS320F28XX and Insulated Gate Bipolar Transistor (IGBT) , also, HEIDENHAIN tape is used to detect the absolute position of the motor together with the Hall sensor. The segmented PMSM can work stable and the mount drive can realize nice tracking performance at ultra -lower speed with this drive system.

Citation Download Citation

Xiao-li Song, Da-xing Wang, Chao Zhang, Zhen-chao Zhang, Li-yan Chen, and Chang-zhi Ren "Design of one large telescope direct drive control system based on TMS320F28xx", Proc. SPIE 9150, Modeling, Systems Engineering, and Project Management for Astronomy VI, 91501L (5 August 2014); https://doi.org/10.1117/12.2055134

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available