Invention Grant
- Patent Title: Linearization identification method for hysteresis model of piezoceramics based on Koopman operators
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Application No.: US17079428Application Date: 2020-10-24
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Publication No.: US11630929B2Publication Date: 2023-04-18
- Inventor: Bo Zhao , Xue Qi , Weijia Shi , Jiubin Tan
- Applicant: HARBIN INSTITUTE OF TECHNOLOGY
- Applicant Address: CN Harbin
- Assignee: HARBIN INSTITUTE OF TECHNOLOGY
- Current Assignee: HARBIN INSTITUTE OF TECHNOLOGY
- Current Assignee Address: CN Harbin
- Agency: IPro, PLLC
- Agent Na Xu
- Priority: CN202010329026.6 20200424
- Main IPC: G06F30/20
- IPC: G06F30/20 ; G06N3/08 ; G06F111/10

Abstract:
The disclosure provides a linearization identification method for a hysteresis model of piezoceramics based on Koopman operators, and belongs to the field of precision positioning. In order to solve the problem of hysteresis of a piezoelectric actuator in practical application, the disclosure further provides the linearization identification method for the hysteresis model of the piezoceramics based on Koopman operators. The method of the disclosure includes: Step I, building a structure of the hysteresis model of the piezoceramics; Step II, determining parameters of the hysteresis model of the piezoceramics; Step III, obtaining a great amount of simulation data by using simulation software; Step IV, performing deep learning training based on Koopman operators; and Step V, determining a linearization model for the hysteresis model of the piezoceramics based on Koopman operators. The disclosure is applicable to piezoelectric actuator control and precision positioning.
Public/Granted literature
- US20210042454A1 Linearization Identification Method for Hysteresis Model of Piezoceramics Based on Koopman Operators Public/Granted day:2021-02-11
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