Title:
DIRECT-CURRENT BUS CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/103059
Kind Code:
A1
Abstract:
This direct-current bus control system for controlling power variation in a direct-current bus connecting an input power supply and a load comprises: a main stabilization device including a first charge/discharge element and a first power converter; and at least one sub-stabilization device including a second charge/discharge element, a charge element, or a discharge element and a second power converter. The first power converter is configured to determine a bus voltage target value corresponding to a stored electricity amount index of the first charge/discharge element, and is configured to bilaterally exchange direct-current power between the first charge/discharge element and the direct-current bus in such a way that the voltage of the direct-current bus matches the bus voltage target value. The second power converter is configured to determine a current target value in accordance with a difference between a threshold value relating to charging or discharging of the second charge/discharge element, the charge element, or the discharge element and the voltage of the direct-current bus, and is configured to exchange direct-current power between the second charge/discharge element, the charge element, or the discharge element and the direct-current bus in such a way that a current equal to the current target value flows through the second charge/discharge element, the charge element, or the discharge element.
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Inventors:
YAMASHITA DAIJI (JP)
SUGIYAMA MASAKAZU (JP)
TSUNO KATSUHIKO (JP)
KOIKE KAYO (JP)
FUJII KATSUSHI (JP)
WADA SATOSHI (JP)
SUGIYAMA MASAKAZU (JP)
TSUNO KATSUHIKO (JP)
KOIKE KAYO (JP)
FUJII KATSUSHI (JP)
WADA SATOSHI (JP)
Application Number:
PCT/JP2018/043064
Publication Date:
May 31, 2019
Filing Date:
November 21, 2018
Export Citation:
Assignee:
RIKEN (JP)
International Classes:
H02J1/00; H02J1/12; H02J3/32; H02J3/38; H02J7/10; H02J7/35
Domestic Patent References:
| WO2013145618A1 | 2013-10-03 | |||
| WO2013145658A1 | 2013-10-03 |
Foreign References:
| JP2006129585A | 2006-05-18 | |||
| JP2012095418A | 2012-05-17 | |||
| JP2015130732A | 2015-07-16 | |||
| JP2005224009A | 2005-08-18 | |||
| JP2017175888A | 2017-09-28 | |||
| JP2017005944A | 2017-01-05 | |||
| JP2005224009A | 2005-08-18 | |||
| JP2017223808A | 2017-12-21 |
Other References:
See also references of EP 3716435A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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