Title:
RELAYING PROTECTION METHOD, APPARATUS AND DEVICE FOR THREE-PHASE ALTERNATING-CURRENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/045100
Kind Code:
A1
Abstract:
The present application relates to a relaying protection method, apparatus and device for a three-phase alternating-current system. The relaying protection method for a three-phase alternating-current system comprises: sampling a three-phase alternating-current signal of a three-phase alternating-current system, so as to obtain sampled data; on the basis of the sampled data, determining a characteristic value of the three-phase alternating-current signal by means of Park transformation, wherein the characteristic value comprises at least one of a signal effective value and a phase angle; and executing a relaying protection action for the three-phase alternating-current system on the basis of the characteristic value.
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Inventors:
SHI SHENXING (CN)
ZHANG KAIXIN (CN)
DONG XINZHOU (CN)
ZHANG KAIXIN (CN)
DONG XINZHOU (CN)
Application Number:
PCT/CN2022/116374
Publication Date:
March 07, 2024
Filing Date:
August 31, 2022
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
H02H7/22
Foreign References:
| CN114034981A | 2022-02-11 | |||
| CN112583402A | 2021-03-30 | |||
| CN114123325A | 2022-03-01 | |||
| CN114636883A | 2022-06-17 | |||
| US20180348308A1 | 2018-12-06 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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