Title:
PROTECTION CONTROL DEVICE FOR MULTI-TERMINAL DC POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/261041
Kind Code:
A1
Abstract:
Provided is a protection control device for a multi-terminal DC power transmission system that makes it possible to minimize chances of shutdown of a renewable energy power generation plant, adequately separate the section of a DC line of the multi-terminal DC power transmission system where a DC accident has occurred, and maintain the operation of the entire system. A protection control device for a multi-terminal DC transmission system in which a wind farm converter station equipped with an AC/DC converter that performs AC/DC conversion of wind farm power is connected to other AC/DC converter stations via a plurality of DC lines including DC breakers, the protection control device being characterized in having a function of suppressing power flowing into the DC line from the AC/DC converter station to which a wind farm is connected in the event of an accident on the DC line.
Inventors:
YOSHIHARA TOHRU (JP)
OHARA SHINYA (JP)
LEE CHIA TSE (JP)
HARAGUCHI RURIKO (JP)
OHARA SHINYA (JP)
LEE CHIA TSE (JP)
HARAGUCHI RURIKO (JP)
Application Number:
PCT/JP2021/012278
Publication Date:
December 30, 2021
Filing Date:
March 24, 2021
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02H3/06; H02J1/00; H02J3/36; H02J3/38
Foreign References:
| JP2019050694A | 2019-03-28 | |||
| JP2018046642A | 2018-03-22 |
Other References:
ANONYMOUS: "Draft standard specifications for control and protection of multi-terminal HVDC", NEW ENERGY INDUSTRIAL TECHNOLOGY DEVELOPMENT ORGANIZATION, 1 March 2020 (2020-03-01), pages 1 - 61, XP093004651
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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