Title:
DC GRID SYSTEM, CONTROL DEVICE, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/097413
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a control technology capable of connecting a storage battery to a DC bus via a DC/DC converter, and controlling charge and discharge of the storage battery by the DC/DC converter. A DC grid system according to the present invention calculates a voltage command value of a DC bus using the present voltage of a storage battery and the target voltage of the storage battery, and gives the voltage command value as a command value for each of an AC/DC converter and a DC/DC converter (See FIG. 1).
Inventors:
WAKABAYASHI RYO (JP)
KOUNO TORU (JP)
AKIYAMA SATORU (JP)
MIFTAHULLATIF EMHA BAYU (JP)
KONDO KATSUTOSHI (JP)
KOUNO TORU (JP)
AKIYAMA SATORU (JP)
MIFTAHULLATIF EMHA BAYU (JP)
KONDO KATSUTOSHI (JP)
Application Number:
PCT/JP2021/037043
Publication Date:
May 12, 2022
Filing Date:
October 06, 2021
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H01M10/48; H02J3/32; H02J3/38; H02J7/00; H02J7/35
Domestic Patent References:
| WO2017163960A1 | 2017-09-28 | |||
| WO2014103351A1 | 2014-07-03 | |||
| WO2019103059A1 | 2019-05-31 |
Foreign References:
| JP2003339118A | 2003-11-28 | |||
| JP2018019481A | 2018-02-01 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
Download PDF:
Previous Patent: WIRELESS POWER RECEIVING DEVICE
Next Patent: SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM
Next Patent: SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM