Title:
POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/044774
Kind Code:
A1
Abstract:
The purpose of the present invention is to implement both an uninterruptible power supply function and a load leveling function by using the same distributed energy resources, while satisfying FRT requirements. Provided is a power supply system comprising: distributed energy resources 2 connected to a power line L1 for feeding power from a commercial power system 10 to an important load 30; a switch 3 provided in the power line L1 on the commercial power system 10 side with respect to the distributed energy resources 2, for opening and closing the power line L1; an impedance element 4 connected in parallel to the switch 3 in the power line L1; a voltage detection unit 5 for detecting a voltage on the commercial power system 10 side with respect to the switch 3; and a control unit 6 for releasing, when a voltage detected by the voltage detection unit 5 becomes equal to or lower than a set point, the switch 3 such that the distributed energy resources 2 and the commercial power system 10 are connected through the impedance element 4. In the state in which the distributed energy resources 2 and the commercial power system 10 are connected through the impedance element 4, the distributed energy resources 2 continue operation including reverse power flow.
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Inventors:
UDA SATOSHI (JP)
KAWASAKI YOSHINORI (JP)
NISHIMURA SHOJI (JP)
KAWASAKI YOSHINORI (JP)
NISHIMURA SHOJI (JP)
Application Number:
PCT/JP2018/031601
Publication Date:
March 07, 2019
Filing Date:
August 27, 2018
Export Citation:
Assignee:
NISSIN ELECTRIC CO LTD (JP)
International Classes:
H02J3/38; H02J3/24; H02J9/06
Foreign References:
| JP2017055508A | 2017-03-16 | |||
| JP2016208586A | 2016-12-08 | |||
| JP2016059168A | 2016-04-21 | |||
| JPS5066130U | 1975-06-14 | |||
| JP2000184602A | 2000-06-30 | |||
| JP3402886B2 | 2003-05-06 | |||
| JP2004289980A | 2004-10-14 |
Other References:
See also references of EP 3681008A4
Attorney, Agent or Firm:
NISHIMURA, Ryuhei (JP)
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