Title:
HARMONIC ANALYSIS AND TREATMENT METHOD FOR DOUBLY-FED WIND POWER GENERATOR SET GRID-CONNECTION
Document Type and Number:
WIPO Patent Application WO/2019/242666
Kind Code:
A1
Abstract:
Disclosed is a harmonic analysis and treatment method for a doubly-fed wind power generator set grid-connection. The method comprises: based on a mathematical model of the doubly-fed wind power generator set, constructing an electromagnetic transient model of a doubly-fed wind power generator set; performing electromagnetic transient simulation calculation on a wind power plant by using an ADPSS simulation system to obtain a harmonic current and a harmonic voltage injected into a power grid by the wind power plant; comparing the harmonic current injected into the power grid by the wind power plant with a harmonic current limit value, and comparing the harmonic voltage injected into the power grid by the wind power plant with a harmonic voltage limit value, and determining whether the harmonic current or harmonic voltage injected into the power grid by the wind power plant exceeds a standard; and if the harmonic current injected into the power grid by the wind power plant exceeds the standard, designing an active filter, establishing a wind power plant electromagnetic transient model containing the active filter, and compensating for the harmonic current in the power grid.
Inventors:
ZHENG TINGTING (CN)
LIU WEIMING (CN)
REN ZHENG (CN)
WANG JIANBO (CN)
YANG PENGWEI (CN)
LIU HUIBIN (CN)
LIU CHUNHUI (CN)
DU ZHICHAO (CN)
LIU WEIMING (CN)
REN ZHENG (CN)
WANG JIANBO (CN)
YANG PENGWEI (CN)
LIU HUIBIN (CN)
LIU CHUNHUI (CN)
DU ZHICHAO (CN)
Application Number:
PCT/CN2019/091990
Publication Date:
December 26, 2019
Filing Date:
June 20, 2019
Export Citation:
Assignee:
ELECTRIC POWER RES INSTITUTE OF STATE GRID EASTERN INNER MONGOLIA POWER COMPANY LIMITED (CN)
STATE GRID CORP CHINA (CN)
STATE GRID CORP CHINA (CN)
International Classes:
H02J3/01; H02J3/38
Foreign References:
| CN108879759A | 2018-11-23 | |||
| CN104883109A | 2015-09-02 |
Other References:
ZHUANG SHICHENG: "Research on the Harmonic Characteristics of a DFIG-based Wind Generation System and Its Suppression Strategy", SCIENCE-ENGINEERING (B) CHINA MASTER'S THESES FULL-TEXT DATABASE, vol. 2017, no. 3, 1 April 2016 (2016-04-01), pages 1 - 82, XP055665267, ISSN: 1674-0246
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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