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Title:
CONTROLLER AND CONTROL METHOD BASED ON VARIABLE STRUCTURE, AND RECORDING MEDIUM FOR PERFORMING SAME CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/048819
Kind Code:
A1
Abstract:
A controller based on a variable structure comprises: a switching function calculation unit for receiving a position reference received from the outside of a motor and a plant to be controlled and a position feedback from the motor and plant, so as to calculate a switching function used for variable structure control; a variable structure high-order external disturbance estimation unit for estimating external disturbance applied to the motor and plant on the basis of the switching function, and outputting an estimated external disturbance signal; and a variable structure current command generation unit for generating a current command applied to the motor and plant, on the basis of the position reference, the position feedback from the motor and plant, the switching function, and the estimated external disturbance signal. Accordingly, the influence on a difference between a system model and an actual load model of an external disturbance compensator can be reduced.

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Inventors:
CHO DONG IL (KR)
YANG DAE YOUNG (KR)
OH TAE-HO (KR)
LEE SANG-HOON (KR)
Application Number:
PCT/KR2022/013140
Publication Date:
March 07, 2024
Filing Date:
September 01, 2022
Export Citation:
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Assignee:
SEOUL NAT UNIV R&DB FOUNDATION (KR)
RS AUTOMATION CO LTD (KR)
International Classes:
G05B11/42; G05D3/12; H02P23/00
Foreign References:
KR20210050303A2021-05-07
KR102240723B12021-04-16
KR102139286B12020-07-30
US20080112697A12008-05-15
Other References:
JISEOK HAN: "Robust Discrete-time Sliding Mode Control Method for Disturbance and Control Input Saturation and Its Application to Industrial Servo Systems", PH.D. THESIS, THE GRADUATE SCHOOL SEOUL NATIONAL UNIVERSITY, 1 February 2021 (2021-02-01), XP093143498, Retrieved from the Internet [retrieved on 20240320]
Attorney, Agent or Firm:
KIM, Sun-young (KR)
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