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:
Jul. 04, 2017
Filed:
Dec. 05, 2013
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, Hyogo, JP;
Kazushige Sugimoto, Amagasaki, JP;
Masahide Kawamura, Kobe, JP;
Kentaro Sakata, Akashi, JP;
Mitsuchika Ogawa, Kobe, JP;
Kentaro Tsuda, Kobe, JP;
Takefumi Iizaka, Kobe, JP;
Yuko Hirase, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe-Shi, Hyogo, JP;
Abstract
A first internal phase difference angle calculator for integrating a deviation between a first frequency command value and a frequency obtained by frequency obtaining device to calculate a first internal phase difference angle, a first internal electromotive voltage command value calculator for proportioning and calculating a deviation between a first reactive power command value and a reactive power obtained based on the value measured by first measuring device, and adding a reference voltage to the deviation so as to calculate a first internal electromotive voltage command value, and a first current command value calculator for calculating a command value of an output current from a first power converter based on the first internal phase difference angle, the first internal electromotive voltage command value, and a voltage measured by the voltage measuring device. The apparatus controls the first power converter based on an output from the first current command value calculator.