Title:
METHOD FOR COMPENSATING INSTANTANEOUS POWER FAILURE IN HIGH VOLTAGE INVERTER
Document Type and Number:
Japanese Patent JP2016135097
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent overvoltage trip caused at a power restoration time and overcurrent trip caused by an increase in a slip frequency, thereby to enhance the reliability of a high voltage inverter and ensure a continuous operation time increased in comparison with the conventional cases.SOLUTION: The present invention relates to a method for compensating an instantaneous power failure in a high voltage inverter. The method for compensating an instantaneous power failure of the present invention includes the steps of: determining whether an input voltage of a plurality of power cells is less than or equal to a first critical voltage; decreasing an output frequency of the inverter when the input voltage is less than or equal to the first critical voltage; determining whether a voltage of a direct current (DC) link of the plurality of power cells is greater than or equal to a second critical voltage; and increasing the output frequency of the inverter when the voltage of the direct current (DC) link is greater than or equal to the second critical voltage.SELECTED DRAWING: Figure 4
Inventors:
AHN SUNG-GUK
Application Number:
JP2016008211A
Publication Date:
July 25, 2016
Filing Date:
January 19, 2016
Export Citation:
Assignee:
LSIS CO LTD
International Classes:
H02M7/49; H02H7/09
Domestic Patent References:
| JP2013074792A | 2013-04-22 | |||
| JPH02184293A | 1990-07-18 | |||
| JPS5914393A | 1984-01-25 | |||
| JP2013027310A | 2013-02-04 | |||
| JP2013126371A | 2013-06-24 |
Foreign References:
| US20060119311A1 | 2006-06-08 |
Attorney, Agent or Firm:
Patent business corporation r&c
Previous Patent: Motor mount
Next Patent: PROVIDING FEEDBACK BASED ON ELECTRONIC DEVICE PLACED ON WIRELESS CHARGING DEVICE
Next Patent: PROVIDING FEEDBACK BASED ON ELECTRONIC DEVICE PLACED ON WIRELESS CHARGING DEVICE