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:
Feb. 11, 2025
Filed:
Jan. 15, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Sadayuki Inoue, Tokyo, JP;
Koki Matsumoto, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A power conversion device includes a converter, an inverter, a converter control circuit, a virtual synchronous generator control circuit to impart a transient characteristic of a synchronous generator to the inverter, and an inverter control circuit to control the inverter. The virtual synchronous generator control circuit calculates a switching frequency at which charge/discharge of the distributed power source is switched, based on information necessary for virtual synchronous generator control. The converter control circuit uses the switching frequency to create a frequency range of AC system voltage for providing a dead zone in which charge/discharge power of the distributed power source is zero in a drooping characteristic of the power conversion device, or a hysteresis in switching of charge/discharge of the distributed power source. The converter control circuit performs control such that charge/discharge power of the distributed power source becomes zero in the frequency range.