Title:
INVERTER CONTROL DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2024/053779
Kind Code:
A1
Abstract:
The present specification relates to an inverter control device and method. The inverter control device according to one embodiment of the present specification comprises: an inverter control unit, which generates, on the basis of a signal detected from the motor or an inverter, a pulse width modulation (PWM) signal for controlling the rotation speed or torque of a motor, in order to supply same to the inverter; and a current limitation unit, which applies a detected temperature to an equation based on a first temperature and a second temperature, that is higher than the first temperature, so as to calculate a current limitation rate for limiting a current to be supplied to the motor through the inverter, in order to provide same to the inverter control unit, wherein the inverter control unit can change the PWM signal on the basis of the current limitation rate. The current limitation unit can generate the current limitation rate as 1 if the detected temperature is lower than the first temperature, generate the current limitation rate as 0 if the detected temperature is higher than the second temperature, and generate the current limitation rate such that same gradually decreases to be between 0 and 1 as the detected temperature increases if the detected temperature is between the first temperature and the second temperature.
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Inventors:
PARK MOONHO (KR)
Application Number:
PCT/KR2022/017368
Publication Date:
March 14, 2024
Filing Date:
November 07, 2022
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H02P29/68; H01C7/04; H02M1/32; H02P27/08
Foreign References:
| JP2005143232A | 2005-06-02 | |||
| KR20160085574A | 2016-07-18 | |||
| JP2016019356A | 2016-02-01 | |||
| JP2021114826A | 2021-08-05 | |||
| JP2010172124A | 2010-08-05 |
Attorney, Agent or Firm:
ROYAL PATENT & LAW OFFICE (KR)
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