Title:
VOLTAGE SOURCE ELECTROMECHANICAL TRANSIENT MODELING METHOD AND DEVICE FOR DOUBLY-FED GENERATOR EXCITATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/179365
Kind Code:
A1
Abstract:
The present invention provides a voltage source electromechanical transient modeling method and device for a doubly-fed generator excitation system. The method comprises: establishing a voltage source electromechanical transient model of a doubly-fed generator; determining an interface equation of the doubly-fed generator and an external system according to the voltage source electromechanical transient model of the doubly-fed generator; determining an alternating current excitation control model according to the voltage source electromechanical transient model of the doubly-fed generator and the interface equation of the doubly-fed generator and the external system; and determining a voltage source electromechanical transient model of a doubly-fed generator excitation system according to the voltage source electromechanical transient model of the doubly-fed generator and the alternating current excitation control model. According to the present invention, a frequency conversion controller, a variable-frequency drive, and a generator connection module are normalized, a generator model and a frequency conversion controller model are integrated, the dynamic process of the motor flux linkage and the dynamic characteristics of the inner ring of the controller are retained, and the present invention has important significance for research of the transient problem of large-capacity doubly-fed units connected to the power grid.
Inventors:
XIE HUAN (CN)
LI SHANYING (CN)
LIU LILI (CN)
WU TAO (CN)
LIANG HAO (CN)
LI CHANGYU (CN)
TAN QIBANG (CN)
CAO TIANZHI (CN)
HUANG TIANXIAO (CN)
YAN YIAN (CN)
LIU YINGLIN (CN)
XIN GUANGMING (CN)
LUO JING (CN)
HAO JING (CN)
WANG BINGHUI (CN)
TAN ZHENG (CN)
XU PENG (CN)
CHEN RUI (CN)
SHI YANG (CN)
LI SHANYING (CN)
LIU LILI (CN)
WU TAO (CN)
LIANG HAO (CN)
LI CHANGYU (CN)
TAN QIBANG (CN)
CAO TIANZHI (CN)
HUANG TIANXIAO (CN)
YAN YIAN (CN)
LIU YINGLIN (CN)
XIN GUANGMING (CN)
LUO JING (CN)
HAO JING (CN)
WANG BINGHUI (CN)
TAN ZHENG (CN)
XU PENG (CN)
CHEN RUI (CN)
SHI YANG (CN)
Application Number:
PCT/CN2022/073134
Publication Date:
September 01, 2022
Filing Date:
January 21, 2022
Export Citation:
Assignee:
STATE GRID JIBEI ELECTRIC POWER RES INSTITUTE (CN)
NORTH CHINA ELECTRIC POWER RES INSTITUTE CO LTD (CN)
STATE GRID CORP CHINA (CN)
NORTH CHINA ELECTRIC POWER RES INSTITUTE CO LTD (CN)
STATE GRID CORP CHINA (CN)
International Classes:
H02P21/26; H02P9/30; H02P21/22; H02P21/28
Foreign References:
| CN113014171A | 2021-06-22 | |||
| CN109830970A | 2019-05-31 | |||
| CN104820895A | 2015-08-05 | |||
| CN103500269A | 2014-01-08 | |||
| CN103034761A | 2013-04-10 | |||
| US20140138949A1 | 2014-05-22 |
Other References:
GUO, SHIFAN: "Modeling and Operation Simulation of Doubly-Fed Type Wind Power Generation System Electromechanical Transient Mode", WANFANG DISSERTATIONS / MASTER THESIS, CN, 30 November 2012 (2012-11-30), CN, pages 1 - 76, XP009539224
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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