Title:
CONTROL METHOD FOR TURNTABLE WITH SIX-DEGREES-OF-FREEDOM ADJUSTMENT
Document Type and Number:
WIPO Patent Application WO/2022/183468
Kind Code:
A1
Abstract:
A control method for a turntable with six-degrees-of-freedom adjustment, comprising: dividing the turntable with six-degrees-of-freedom adjustment into mechanical parts for harmonic response analysis in order to acquire N groups of frequency response data under different inputs, performing systematic identification on a group of frequency response data, and establishing a set of first transfer function models of different order-zero number combinations; performing systematic identification on the N groups of frequency response data, and selecting a preferred transfer function model from a set of second transfer function models as a mechanical transfer function model; setting a preset order and preset zero number of an electrical part, performing systematic identification on a plurality of preset signals, and establishing a set of third transfer function models of a preset order and preset zero number and an electrical transfer function model; acquiring and controlling a control parameter of a motor controller on the basis of an overall transfer function, and controlling the motor controller to control the operation of the turntable on the basis of the control parameter. The present invention can achieve accurate control of a complex system.
Inventors:
BI RAN (CN)
ZHOU FENG (CN)
WANG HUI (CN)
WANG LIPING (CN)
JIN CHUNSHUI (CN)
ZHOU FENG (CN)
WANG HUI (CN)
WANG LIPING (CN)
JIN CHUNSHUI (CN)
Application Number:
PCT/CN2021/079242
Publication Date:
September 09, 2022
Filing Date:
March 05, 2021
Export Citation:
Assignee:
CHANGCHUN INST OPTICS FINE MECH & PHYSICS CAS (CN)
International Classes:
G05D3/12
Foreign References:
| CN110968118A | 2020-04-07 | |||
| CN110989357A | 2020-04-10 | |||
| CN107065551A | 2017-08-18 | |||
| CN106155141A | 2016-11-23 | |||
| CN112287492A | 2021-01-29 | |||
| JP2008102714A | 2008-05-01 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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