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:
Jan. 07, 2020
Filed:
Jun. 15, 2017
Central Japan Railway Company, Nagoya-shi, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki-shi, JP;
Kenji Sato, Nagoya, JP;
Masayuki Ueno, Nagoya, JP;
Takafumi Fukushima, Nagoya, JP;
Shigekazu Okada, Nagoya, JP;
Kotaro Oda, Nagoya, JP;
Hiroaki Otani, Fuchu, JP;
Yasuomi Maki, Fuchu, JP;
Kenichi Kikkawa, Saitama, JP;
Tsunehito Fujita, Fuchu, JP;
Manato Mori, Kawasaki, JP;
CENTRAL JAPAN RAILWAY COMPANY, Nagoya-shi, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki-shi, JP;
Abstract
A power conversion system includes a transformer, a power conversion device for travel, a power conversion device for auxiliary power sources, and an electrical storage device. The power conversion device for auxiliary power sources includes a first AC to DC conversion unit, a power conversion unit for AC loads, and a power conversion unit for DC loads. The power conversion unit for AC loads converts DC power into AC power and supplies it to an AC load. The power conversion unit for DC loads converts DC power produced through conversion by the first AC to DC conversion unit into DC power and supplies it to a DC load. The electrical storage device is connected to power lines connecting DC power output terminals of the first AC to DC conversion unit and DC power input terminals of both the power conversion units for AC and DC loads. When power supplied from a tertiary winding of the transformer to the first AC to DC conversion unit is reduced, the electrical storage device discharges power corresponding to the power reduction.