Title:
POWER SUPPLY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/136248
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a power supply apparatus capable of stably supplying power and also achieving a longer life. This problem can be solved by being provided with two power conversion devices in each of which alternating-current-side connection terminals of a plurality of power conversion units capable of power conversion between direct current power and alternating current power are electrically connected in series, and a plurality of power storage devices, making the number of the plurality of power conversion units constituting each of the two power conversion devices and the number of the plurality of power storage devices the same, providing each of the plurality of power storage devices such that the power storage device is common to any one of the plurality of power conversion units constituting one of the two power conversion devices and any one of the plurality of power conversion units constituting the other, and electrically connecting the power storage device to direct-current-side connection terminals of the corresponding two power conversion units.
Inventors:
KAKUYA HIROMU (JP)
IMAI SHINJI (JP)
IWASAWA HIROSHI (JP)
IMAI SHINJI (JP)
IWASAWA HIROSHI (JP)
Application Number:
PCT/JP2013/056382
Publication Date:
September 12, 2014
Filing Date:
March 08, 2013
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02J7/00
Foreign References:
| JP2012196013A | 2012-10-11 | |||
| JP2006320103A | 2006-11-24 | |||
| JP2005045856A | 2005-02-17 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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