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Title:
TRANSIENT STABILITY EMERGENCY CONTROL METHOD AND APPARATUS IN CONSIDERATION OF DIRECT CURRENT SUCCESSIVE BLOCKING TIME DIFFERENCE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/098437
Kind Code:
A1
Abstract:
Disclosed in the present invention is a transient stability emergency control method in consideration of a direct current successive blocking time difference, comprising: obtaining a successive blocking time difference between a current blocking moment and a next blocking moment in a direct current successive blocking fault; determining whether the successive blocking time difference is within a predetermined independent event time difference range; if yes, taking a current blocking event and a next blocking event in the direct current successive blocking fault as mutually independent events, and separately carrying out fault response control by means of a predetermined single direct current blocking control strategy; otherwise, separately carrying out fault response control on corresponding current and next blocking events by means of a single direct current blocking control strategy, and adding a predetermined load control quantity. According to the present invention, by analyzing the law of effect of the time difference between multiple successive faults on the transient stability, emergency control measures after direct current successive blocking in different time difference ranges are distinguished, and emergency control for different successive blocking time differences under actual direct current successive blocking faults is carried out, thereby improving the emergency control reliability.

Inventors:
ZHANG HONGLI (CN)
LIU FUSUO (CN)
YAN YUNSONG (CN)
LI WEI (CN)
XUE FENG (CN)
LAI YENING (CN)
LI ZHAOWEI (CN)
WANG YU (CN)
WU XUELIAN (CN)
GAO JIANLIANG (CN)
HUANG CHANGXIANG (CN)
ZHANG CHENGYI (CN)
NI ZHENLIN (CN)
ZHANG QIAN (CN)
Application Number:
PCT/CN2022/130934
Publication Date:
June 08, 2023
Filing Date:
November 09, 2022
Export Citation:
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Assignee:
NARI GROUP CORP (CN)
NARI TECHNOLOGY CO LTD (CN)
International Classes:
H02J3/24; H02J3/14
Foreign References:
CN114188956A2022-03-15
CN112615363A2021-04-06
CN111368449A2020-07-03
CN109659964A2019-04-19
US20150035371A12015-02-05
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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