Title:
POWER ADJUSTER AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/243034
Kind Code:
A1
Abstract:
By using only this power adjuster, a harmonic component is easily calculated and displayed. This power adjuster which controls, through phase control, power supply from an AC power source to a load comprises: a current measurement unit that measures a current value of output current; a trigger angle calculation unit that calculates a trigger angle corresponding to a phase control method and a target load rate; a harmonic component calculation unit that calculates a harmonic component in the output current on the basis of the phase control method, the trigger angle, the current value, and a Fourier coefficient corresponding to the phase control method and the trigger angle; and a display unit that displays the harmonic component.
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Inventors:
GOTOH SHIGEFUMI (JP)
KIMURA KOJI (JP)
KIMURA KOJI (JP)
Application Number:
PCT/JP2022/024112
Publication Date:
December 21, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
RKC INSTRUMENTS INC (JP)
International Classes:
G01R23/20; H02J3/00
Domestic Patent References:
| WO2010150217A2 | 2010-12-29 | |||
| WO2019097835A1 | 2019-05-23 |
Foreign References:
| JPH09133717A | 1997-05-20 | |||
| JP2006325307A | 2006-11-30 | |||
| JP2017174139A | 2017-09-28 | |||
| JP2008191108A | 2008-08-21 | |||
| JP2002022784A | 2002-01-23 | |||
| CN210608551U | 2020-05-22 | |||
| KR20150094253A | 2015-08-19 |
Attorney, Agent or Firm:
KATO, Masanobu et al. (JP)
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