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:
Apr. 29, 2025
Filed:
Sep. 18, 2020
Hitachi Mitsubishi Hydro Corporation, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Akira Bando, Tokyo, JP;
Takahiko Kikui, Tokyo, JP;
Kenta Watanabe, Tokyo, JP;
Tomomichi Ito, Tokyo, JP;
Yasuhiro Kiyofuji, Tokyo, JP;
Masakazu Ishikawa, Tokyo, JP;
Yosuke Nakaide, Tokyo, JP;
HITACHI MITSUBISHI HYDRO CORPORATION, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A modular multilevel power converter includes: a capacitor voltage adjuster that calculates an active current component command to make an average voltage of capacitors match a command value; an active power detector that receives an AC current signal and an AC voltage signal and calculates an active power; an active power adjuster that calculates a DC current command value to make the active power match a command value; a first active power command suppressor that suppresses an absolute value of an active power command value; and a second active power command suppressor that adjusts an absolute value of an active power command value.