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Title:
THREE-PHASE POWER GRID FAULT DIAGNOSIS METHOD AND APPARATUS, COMPUTER DEVICE AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/160778
Kind Code:
A1
Abstract:
A three-phase power grid fault diagnosis method and apparatus, a computer device and a storage medium. The three-phase power grid fault diagnosis method comprises: acquiring line voltage values of a three-phase power grid in real time by means of a voltage acquisition device connected to phase lines of the three-phase power grid (S100); according to the line voltage values and preset system parameters, obtaining a voltage peak balance degree and a phase angle offset amount of the three-phase power grid (S200); and obtaining a fault diagnosis result according to the voltage peak balance degree and the phase angle offset amount (S300). According to the three-phase power grid fault diagnosis method, a real-time diagnosis operation of whether a three-phase power grid is balanced can be implemented only by performing on-line calculation and analysis on line voltage values, and the analysis operation is simple, reducing the system complexity; and only a voltage acquisition device is needed to perform line voltage value acquisition, and no other hardware costs are required, having relatively high diagnosis reliability.

Inventors:
YU WEI (CN)
ZHAO JIN (CN)
LI SHAOHUI (CN)
Application Number:
PCT/CN2021/123771
Publication Date:
August 04, 2022
Filing Date:
October 14, 2021
Export Citation:
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Assignee:
EAST GROUP CO LTD (CN)
International Classes:
G01R31/08
Domestic Patent References:
WO2014090816A12014-06-19
Foreign References:
CN112946421A2021-06-11
CN111551824A2020-08-18
CN110609181A2019-12-24
CN108321809A2018-07-24
CN109061384A2018-12-21
CN203365558U2013-12-25
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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