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:
Nov. 02, 2010
Filed:
Mar. 20, 2007
Shinichi Ogusa, Tokyo, JP;
Yukimori Kishida, Tokyo, JP;
Akira Imanaka, Tokyo, JP;
Yasuhiro Sekimoto, Tokyo, JP;
Masaya Harakawa, Tokyo, JP;
Shinichi Ogusa, Tokyo, JP;
Yukimori Kishida, Tokyo, JP;
Akira Imanaka, Tokyo, JP;
Yasuhiro Sekimoto, Tokyo, JP;
Masaya Harakawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power conversion device including sub-inverters, each connected in series with respective phase of a three-phase main inverter including a smoothing capacitor, which is fed from a power supply via a converter, as a DC input thereof, and feeds power to a load using the sum of outputs of the inverters. A manipulative quantity is determined so that the DC voltage at each of smoothing capacitors which is an input of each of the sub-inverters will follow a command value. The manipulative quantity is added to an output voltage command for the three-phase main inverter, and is subtracted from an output voltage command for the sub-inverters. Thus, power is shifted from the three-phase main inverter to the smoothing capacitors of the sub-inverters.