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:
Aug. 11, 2026
Filed:
Dec. 15, 2021
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Energy Systems & Solutions Corporation, Kawasaki, JP;
Yukina Akiyama, Kawasaki Kanagawa, JP;
Shunsuke Kawachi, Tokyo, JP;
Yuki Kudo, Tokyo, JP;
Yoko Sakauchi, Tokyo, JP;
Koji Toba, Tokyo, JP;
Kenji Mitsumoto, Tokyo, JP;
Daisuke Takeda, Kawasaki Kanagawa, JP;
KABUSHIKI KAISHA TOSHIBA, Kawasaki, JP;
Abstract
A power conversion device is disclosed in which a first command to change amplitude and phase of AC-power by grid forming control (GFM) is generated. A second command to change amplitude and phase of the AC-power by grid following control (GFL) is generated. A modulation circuit changes amplitude and phase of the AC-power in response to the first or second command. The first command is corrected before input to the modulation circuit is switched from the second command to the first command such that a difference between target amplitude of the first command and amplitude of a given grid voltage becomes a threshold or smaller, a difference between target frequency of the first command and frequency of the grid voltage becomes a threshold or smaller, and a difference between target phase of the first command and phase of the grid voltage becomes a threshold or smaller.