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.
Patent No.:
Date of Patent:
Dec. 26, 2023
Filed:
Jun. 04, 2019
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Naoto Niimura, Tokyo, JP;
Abstract
A power conversion device in an embodiment includes a first power converter; a plurality of direct current-direct current (DCDC) converter devices; and a second power converter. The first power converter includes a plurality of first positive-side arms; a plurality of first negative-side arms; a first positive-side star connection line configured to connect the plurality of first positive-side arms in a star shape; a first negative-side star connection line configured to connect the plurality of first negative-side arms in a star shape; and a first terminal configured to connect the first positive-side star connection line and the first negative-side star connection line to each phase of a power supply side alternating current (AC) system and the plurality of first positive-side arms and the plurality of first negative-side arms mutually convert a first AC power and a first DC power of the power supply side AC system. A plurality of DCDC converter devices mutually convert the first DC power and the second DC power. The second power converter includes a plurality of second positive-side arms; a plurality of second negative-side arms; a second positive-side star connection line configured to connect the plurality of second positive-side arms in a star shape; a second negative-side star connection line configured to connect the plurality of second negative-side arms in a star shape; and a second terminal configured to connect the second positive-side star connection line and the second negative-side star connection line to each phase of a load-side AC system, and the plurality of second positive-side arms and the plurality of second negative-side arms mutually convert the second DC power and the second AC power.