Title:
METHOD FOR DIAGNOSING FAILURE OF POWER INPUT CIRCUIT AND SYSTEM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/118112
Kind Code:
A1
Abstract:
A current measurement apparatus for a three-phase inverter, according to one embodiment of the present invention, comprises: a current detection element connected to a lower end of one of three lower switches constituting the inverter; a current measurement unit for measuring currents by using the current detection element and the two lower switches that are not connected to the current detection element; and a current correction unit for correcting, on the basis of the relationship between a first current value measured by means of the current detection element and second and third current values measured by means of the two lower switches, the second and third current values.
Inventors:
OH DAE GEUN (KR)
PARK BEOM JUN (KR)
PARK BEOM JUN (KR)
Application Number:
PCT/KR2020/016781
Publication Date:
June 17, 2021
Filing Date:
November 25, 2020
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02P29/028; B60R16/033; B60T17/22; G01R15/14; G01R19/165; G01R31/00; G01R31/40; H02H7/12; H02P3/18
Foreign References:
| JP2007097368A | 2007-04-12 | |||
| JP2012090406A | 2012-05-10 | |||
| JP2001143890A | 2001-05-25 | |||
| KR101759739B1 | 2017-07-21 | |||
| JP2015220840A | 2015-12-07 |
Attorney, Agent or Firm:
JIN, Cheon Woong et al. (KR)
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