Title:
DEVICE FOR MEASURING CURRENT OF THREE-PHASE INVERTER AND METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/112475
Kind Code:
A1
Abstract:
A device for measuring a current of a three-phase inverter according to an embodiment of the present invention comprises: a current detection element connected to the lower end of one of three lower switches configuring an inverter; a current measurement unit for measuring a current by using the current detection element and the other two lower switches, to which the current detection element is not connected; and a current correction unit for correcting a second current value and a third current value measured using the two lower switches, on the basis of the relationship between a first current value measured using the current detection element and the second and third current values.
Inventors:
BANG JI WON (KR)
KIM YANG HAK (KR)
KIM YANG HAK (KR)
Application Number:
PCT/KR2020/016776
Publication Date:
June 10, 2021
Filing Date:
November 25, 2020
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02H9/02; G01R1/20; G01R15/04; G01R15/14; G01R19/165; G01R31/327; G01R31/40; H02H3/087
Foreign References:
| KR20160104774A | 2016-09-06 | |||
| US20120113701A1 | 2012-05-10 | |||
| US20090284194A1 | 2009-11-19 | |||
| US20140233278A1 | 2014-08-21 | |||
| JP2006042454A | 2006-02-09 |
Attorney, Agent or Firm:
JIN, Cheon Woong et al. (KR)
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