Title:
THREE-PHASE SIGNAL GENERATING DEVICE, AND THREE-PHASE SIGNAL GENERATING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/053598
Kind Code:
A1
Abstract:
In one aspect of a three-phase signal generating device according to the present invention: a first complex vector, a second complex vector, and a third complex vector are calculated on the basis of instantaneous values of a first signal, a second signal, and a third signal; in the complex plane, a straight line connecting a vertex of a triangle having, as one side, a straight line connecting a vertex of the first complex vector and a vertex of the second complex vector, to a vertex of the third complex vector is calculated as a first straight line; a straight line connecting a vertex of a triangle having, as one side, a straight line connecting the vertex of the second complex vector and the vertex of the third complex vector, to the vertex of the first complex vector is calculated as a second straight line; a straight line connecting a vertex of a triangle having, as one side, a straight line connecting the vertex of the third complex vector and the vertex of the first complex vector, to the vertex of the second complex vector is calculated as a third straight line; a point of intersection of the first straight line, the second straight line, and the third straight line is calculated; and the first complex vector, the second complex vector, and the third complex vector are corrected by transforming the point of intersection to the origin of the complex plane.
Inventors:
FUJITA ATSUSHI (JP)
Application Number:
PCT/JP2022/024210
Publication Date:
April 06, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
G01D5/244; G01D5/245
Foreign References:
| JP2018136310A | 2018-08-30 | |||
| JP2001041984A | 2001-02-16 | |||
| JP2013066304A | 2013-04-11 | |||
| JP2018091745A | 2018-06-14 |
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