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:
Sep. 19, 2017
Filed:
Feb. 16, 2015
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, Hyogo, JP;
Kenichi Sakimoto, Akashi, JP;
Yuko Hirase, Kobe, JP;
Eiji Yoshimura, Akashi, JP;
Shogo Katsura, Akashi, JP;
Hidehiko Nakagawa, Himeji, JP;
Osamu Noro, Akashi, JP;
Yuji Shindo, Akashi, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Abstract
A power conversion device includes: a power converter to perform output to an output line connected to a single-phase power system; and a control device to control the power converter so it operates as a virtual synchronous generator. The control device includes: a voltage and current measurer to obtain, from a single-phase system voltage, an angular velocity and a phase of the system voltage by an estimation operation that uses the phase of the system voltage as a parameter; a power obtainer to obtain active power and reactive power; a governor model to calculate a phase difference; an AVR model to calculate an absolute value of an induced voltage of a virtual synchronous generator; a generator model to calculate current command values corresponding to an armature current of the virtual synchronous generator; and a current controller to generate and output a PWM signal to the power converter.