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Large-scale optical telescope pitch axis dual-motor synchronous control method and system

A synchronous control and dual-motor technology, which is applied in the direction of speed adjustment of multiple motors, can solve the problems of inconvenient engineering implementation, increase the complexity of control algorithms, etc., and achieve the effect of reducing deformation and shaft vibration

Pending Publication Date: 2021-10-08
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve this problem, some currently use an adaptive coupling compensator to realize synchronous control, but this increases the complexity of the control algorithm and is not convenient for engineering implementation.

Method used

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  • Large-scale optical telescope pitch axis dual-motor synchronous control method and system
  • Large-scale optical telescope pitch axis dual-motor synchronous control method and system
  • Large-scale optical telescope pitch axis dual-motor synchronous control method and system

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Embodiment Construction

[0035] The above-mentioned content of the present invention will be further described in detail below in conjunction with the specific implementation manners of the examples. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following examples. Without departing from the above-mentioned technical idea of ​​the present invention, various replacements or changes made according to common technical knowledge and customary means in this field shall be included in the scope of the present invention.

[0036] Such as figure 1 A kind of large-scale optical telescope of the present invention pitch axis dual-motor synchronous control system is shown as follows:

[0037] The system includes a dual motor system, a synchronous command generator and a linear active disturbance rejection controller;

[0038] The dual motor system includes dual motors;

[0039] The synchronous command generator includes: two se...

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Abstract

The invention discloses a large-scale optical telescope pitch axis dual-motor synchronous control method and a large-scale optical telescope pitch axis dual-motor synchronous control system. Decoupling control is carried out on a dual-motor system based on an active-disturbance-rejection control method, and then speed feed-forward, acceleration feed-forward and friction compensation control algorithms are combined to realize dual-motor synchronous control. According to the method, the synchronization error of the double-end motor can be effectively controlled, so the deformation of the middle frame of the pitch axis of the optical telescope and the vibration of the axis system are reduced, and compared with the prior art, the method is simpler and more convenient while more influence factors are considered.

Description

technical field [0001] The invention relates to the technical field of dual-motor synchronous control, in particular to a method and system for synchronous control of dual-motor synchronous control of a pitch axis of a large optical telescope. Background technique [0002] Ground-based large optical telescope is a kind of high-precision equipment for astronomical observation. Usually the field of view of the telescope is small, and the optical telescope has higher requirements on the vibration and deformation of the structure and the tracking accuracy of the system. In order to observe more distant, fainter, and weaker targets, the aperture of optical telescopes is getting bigger and bigger. As the aperture of the optical telescope increases, the size of the middle frame of the telescope becomes larger, and the rigidity of the structure further decreases. This leads to the acceleration and deceleration of the pitch axis of the telescope during the movement, or vibration an...

Claims

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Application Information

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IPC IPC(8): H02P5/50H02P5/56
CPCH02P5/50H02P5/56
Inventor 李欣夏默蒋平马文礼黄金龙
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI