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:
Apr. 07, 2009
Filed:
Aug. 21, 2003
Terence Mckelvey, Chiba, JP;
Eishi Marui, Kanagawa, JP;
Masahiro Miyamoto, Kanagawa, JP;
Motoyasu Sato, Saitama, JP;
Tadashi Kataoka, Chiba, JP;
Tai Furuya, Kanagawa, JP;
Seiichi Ishihara, Kanagawa, JP;
Takahide Ozawa, Kanagawa, JP;
Noboru Kinoshita, Kanagawa, JP;
Shaojun Zheng, Kanagawa, JP;
Terence McKelvey, Chiba, JP;
Eishi Marui, Kanagawa, JP;
Masahiro Miyamoto, Kanagawa, JP;
Motoyasu Sato, Saitama, JP;
Tadashi Kataoka, Chiba, JP;
Tai Furuya, Kanagawa, JP;
Seiichi Ishihara, Kanagawa, JP;
Takahide Ozawa, Kanagawa, JP;
Noboru Kinoshita, Kanagawa, JP;
Shaojun Zheng, Kanagawa, JP;
Ebara Corporation, Tokyo, JP;
Ebara Densan Ltd., Tokyo, JP;
Abstract
A power supply system for supplying power to a load is provided. The system comprises power-line carriers for supplying power to the load, and a plurality of power supply units the outputs of which are parallelly connected to power-line carriers. Each of the power supply unit comprises a generator; an inverter for converting a voltage generated by the generator into an AC voltage and outputting the AC voltage; an inverter control unit for controlling the inverter, and a connection apparatus for connecting the AC voltage outputted from the inverter to the power-line carriers. The inverter controller comprises a load sharing adjuster for adjusting a shared load current supplied from the power supply unit, so that at least one of the power supply units in operation can operated at its rating condition, thereby realizing an efficiency operation.