Title:
ALTERNATING CURRENT-DIRECT CURRENT POWER GRID HARMONIC COUPLING MODELING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/082485
Kind Code:
A1
Abstract:
The present invention provides an alternating current-direct current power grid harmonic coupling modeling method and system. The method comprises: acquiring historical data of an induced ground electric field when a geomagnetic storm occurs; constructing an alternating current power grid transformer harmonic source model, a direct current power grid converter transformer harmonic source model, a direct current power grid converter bridge harmonic source model, a direct current power grid harmonic network model, and an alternating current power grid harmonic network model according to the historical data of the induced ground electric field during the geomagnetic storm; and constructing an alternating current-direct current power grid harmonic coupling model on the basis of the alternating current power grid transformer harmonic source model, the direct current power grid converter transformer harmonic source model, the direct current power grid converter bridge harmonic source model, the direct current power grid harmonic network model, and the alternating current power grid harmonic network model. According to the present invention, by constructing the alternating current-direct current power grid harmonic coupling model, alternating current-direct current power grid harmonic distribution under the influence of a geomagnetic induced current can be obtained, thereby helping to establish defensive measures for transformer damage and large-area power outage caused by magnetic biasing of the geomagnetic induced current in a power grid.
Inventors:
YANG PEIHONG (CN)
CAO YANG (CN)
LIU WANFU (CN)
DANG WEI (CN)
JING HUIYING (CN)
DIAO FENGXIN (CN)
SUN RUI (CN)
CAO YANG (CN)
LIU WANFU (CN)
DANG WEI (CN)
JING HUIYING (CN)
DIAO FENGXIN (CN)
SUN RUI (CN)
Application Number:
PCT/CN2022/076663
Publication Date:
May 19, 2023
Filing Date:
February 17, 2022
Export Citation:
Assignee:
INNER MONGOLIA UNIV OF SCIENCE AND TECHNOLOGY (CN)
STATE GRID EAST INNER MONGOLIA ELECTRIC POWER COMPANY LTD (CN)
ELECTRIC POWER RES INSTITUTE OF STATE GRID EAST INNER MONGOLIA ELECTRIC POWER COMPANY LIMITED (CN)
STATE GRID EAST INNER MONGOLIA ELECTRIC POWER COMPANY LTD (CN)
ELECTRIC POWER RES INSTITUTE OF STATE GRID EAST INNER MONGOLIA ELECTRIC POWER COMPANY LIMITED (CN)
International Classes:
G06F30/20; H02J3/00; H02J3/01; H02J3/36; G06F113/04
Foreign References:
| CN114117754A | 2022-03-01 | |||
| CN108258682A | 2018-07-06 | |||
| CN113034002A | 2021-06-25 | |||
| US20180145504A1 | 2018-05-24 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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