Title:
MULTIPORT HYBRID DIRECT-CURRENT CIRCUIT BREAKER, APPARATUS, SYSTEM, AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/183996
Kind Code:
A1
Abstract:
Provided are a multiport hybrid direct-current circuit breaker and a control method therefor. The multiport hybrid direct-current circuit breaker comprises at least two flow branches (101, …, 10k, …, and 10n), at least two commutator branches (201, …, 20k, …, and 20n), and a disconnecting branch (300). The flow branches (101, …, 10k, …, and 10n) comprise first fast mechanical switches (111, …, 11k, …, and 11n) and one-way commutator switches (121, …, 12k, …, and 12n) connected in series. The flow branches (101, …, 10k, …, and 10n) are connected with each other at one end and constitute a direct-current bus. The commutator branches (201, …, 20k, …, and 20n) comprise diode upper bridge arms (211, …, 21k, …, and 21n) and diode lower bridge arms (221, …, 22k, …, and 22n) connected in series in a same direction. The flow channels (101, …, 10k, …, and 10n) are each connected at the other end in a one-to-one correspondence to the midpoints of the commutator branches (201, …, 20k, …, and 20n) and correspondingly constitute one port. The disconnecting branch (300) comprises a one-way disconnecting switch (310) and a nonlinear resistor (320) connected in parallel. The disconnecting branch (300) and the commutator branches (201, …, 20k, …, and 20n) are connected to each other in parallel and constitute a first common bus and a second common bus.
Inventors:
SHI WEI (CN)
FANG TAIXUN (CN)
XIE YEYUAN (CN)
YANG BING (CN)
LV WEI (CN)
WANG WENJIE (CN)
XU YUANZHEN (CN)
CHEN YU (CN)
SUN CHAO (CN)
CAO DONGMING (曹冬明)
FANG TAIXUN (CN)
XIE YEYUAN (CN)
YANG BING (CN)
LV WEI (CN)
WANG WENJIE (CN)
XU YUANZHEN (CN)
CHEN YU (CN)
SUN CHAO (CN)
CAO DONGMING (曹冬明)
Application Number:
PCT/CN2022/078134
Publication Date:
September 09, 2022
Filing Date:
February 28, 2022
Export Citation:
Assignee:
NR ELECTRIC CO LTD (CN)
NR ENGINEERING CO LTD (CN)
NR ELECTRIC POWER ELECTRONICS CO LTD (CN)
NR ENGINEERING CO LTD (CN)
NR ELECTRIC POWER ELECTRONICS CO LTD (CN)
International Classes:
H02H7/26
Foreign References:
| CN110048377A | 2019-07-23 | |||
| CN109193625A | 2019-01-11 | |||
| CN111509663A | 2020-08-07 | |||
| JP2018036054A | 2018-03-08 | |||
| CN109193580A | 2019-01-11 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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