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:
Apr. 01, 2025

Filed:

Aug. 29, 2019
Applicant:

Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;

Inventors:

Osamu Nakakita, Sagamihara, JP;

Masayuki Tanaka, Sagamihara, JP;

Hiroyuki Suzuki, Sagamihara, JP;

Hirotaka Uehara, Sagamihara, JP;

Masato Mitsuhashi, Tokyo, JP;

Fujio Eguchi, Sagamihara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/46 (2006.01); G05B 17/02 (2006.01); H02J 3/16 (2006.01); H02J 3/40 (2006.01);
U.S. Cl.
CPC ...
H02J 3/46 (2013.01); G05B 17/02 (2013.01); H02J 3/16 (2013.01); H02J 3/40 (2013.01); H02J 2203/20 (2020.01); H02J 2207/20 (2020.01); H02J 2300/22 (2020.01);
Abstract

A processing unit of a command generation device which is provided separately from a general-purpose inverter, performs following processing. A rotation calculation unit calculates a value relating to a rotation of a rotor of a virtual power generator when the virtual power generator is driven according to an active power command based on a rotor model that simulates a driving of the virtual power generator and calculates a value relating to the rotation of the rotor of the virtual power generator and an active power command. A target determination unit determines a target value of a voltage frequency and a target value of an active power based on the calculated value relating to the rotation. A command generation unit generates a control command for the inverter based on the determined target value of the voltage frequency and the target value of the active power. A time constant relating to a synchronization power of the rotor model matches a time constant relating to a synchronization power of the AC power generator.


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