MACHINE-LEARNING DEVICE AND MAGNETIC BEARING DEVICE

Title:

MACHINE-LEARNING DEVICE AND MAGNETIC BEARING DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/189565

Kind Code:

A1

Abstract:

Provided is a magnetic bearing device which is provided with a machine learning device and can suitably control the position of a body to be supported. The machine learning device learns a control condition of the magnetic bearing device (10). The magnetic bearing device is provided with magnetic bearings (21, 22) including a plurality of electromagnets (51-54) which apply an electromagnetic force to a shaft (115). The machine learning device is provided with a learning unit (45), a state variable acquisition unit (43), an evaluation data acquisition unit (44), and an update unit (47). The state variable acquisition unit acquires a state variable including at least one parameter correlated with the position of the shaft. The evaluation data acquisition unit acquires a measurement value of a shaft position, a target value of the shaft position, and evaluation data including at least one parameter among parameters correlated with a deviation from the target value. The update unit updates a learning state of the learning unit by using the evaluation data. The learning unit learns the control condition according to an output from the update unit.

Inventors:

FUJIMOTO SHUNPEI
SAKAWAKI ATSUSHI
HIRATA KAZUYA
HIBINO HIROSHI

Application Number:

PCT/JP2020/011162

Publication Date:

September 24, 2020

Filing Date:

March 13, 2020

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

F16C32/04; F04D27/00; F04D29/058

Domestic Patent References:

WO2018033945A1

2018-02-22

Foreign References:

JP2001165163A	2001-06-19
JP2002174199A	2002-06-21
JPH09191683A	1997-07-22
JP2018005739A	2018-01-11
JPH0699373A	1994-04-12
CN103631137A	2014-03-12
JPH0440308U	1992-04-06

Other References: