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:
Mar. 24, 2015

Filed:

Aug. 22, 2013
Applicant:

Toshiba Mitsubishi-electric Industrial Systems Corporation, Tokyo, JP;

Inventors:

Ruben Alexis Inzunza Figueroa, Tokyo, JP;

Eiichi Ikawa, Tokyo, JP;

Takeshi Sumiya, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 5/45 (2006.01); H02M 7/5395 (2006.01); H02J 3/38 (2006.01); H02M 7/5387 (2007.01); H02M 5/458 (2006.01);
U.S. Cl.
CPC ...
H02M 7/5395 (2013.01); H02J 3/386 (2013.01); H02M 7/53871 (2013.01); H02M 5/4585 (2013.01); Y02E 10/763 (2013.01);
Abstract

A power conversion apparatus includes an inverter circuit, a system voltage measurement unit measuring a system voltage, a voltage drop detector detecting a voltage drop of a power system, based on the system voltage, a direct current power measurement unit measuring a direct current power to be input into the inverter circuit, an alternating current command value calculator calculating an alternating current command value to control an alternating current output from the inverter circuit, based on the direct current power and the system voltage, and a current limiter that decrease a current limit value to limit the alternating current command value, when the voltage drop is detected.


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