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. 15, 1986
Filed:
Apr. 19, 1985
Applicant:
Inventors:
Takami Sakai, Tokyo, JP;
Koji Imai, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
363 35 ; 323209 ;
Abstract
A control method of the invention is formed with the steps of when a margin angle .gamma. reaches a given minimum margin angle .gamma.min during the operation of a rectifier and inverter, a shunt reactor is disconnected from, or a shunt capacitor is connected to, an AC line of the inverter, and when the margin angle .gamma. exceeds the minimum margin angle .gamma.min by a predetermined value, the shunt reactor is connected to, or the shunt capacitor is disconnected from, the AC line.