The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 12, 2018

Filed:

Feb. 04, 2016
Applicant:

Lsis Co., Ltd., Gyeonggi-do, KR;

Inventors:

Hong-Seok Kim, Gyeonggi-do, KR;

Chun-Suk Yang, Gyeonggi-do, KR;

Assignee:

LSIS CO., LTD., Anyang-si, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01); H02H 7/122 (2006.01); H02M 7/537 (2006.01); H02H 3/08 (2006.01); H02H 3/093 (2006.01);
U.S. Cl.
CPC ...
H02H 7/122 (2013.01); H02H 3/08 (2013.01); H02H 7/1227 (2013.01); H02M 7/537 (2013.01); H02H 3/085 (2013.01); H02H 3/093 (2013.01);
Abstract

Disclosed herein is a method for controlling a trip event of an inverter by taking into account the temperature of the inverter. The method includes: sensing a change in temperature of the inverter for an overload current measurement time using the temperature sensing circuit; determining an amount of heat emitted from the inverter based on the change in temperature; determining an electrical energy of the inverter consumed for the overload current measurement time; determining a compensation reference time based on the amount of heat and the electrical energy; and comparing the compensation reference time with the overload current measurement time to trip the inverter. As a result, the actual temperature of the inverter measured when the inverter is in operation is reflected, so that the trip event of the inverter can be controlled more accurately.


Find Patent Forward Citations

Loading…