Impedance Modeling Based Method for Sub/Supsynchronous Oscillation Analysis of D-PMSG Wind Farm

被引：6
|
作者：
Yuan, Saijun [1 ]
Hao, Zhiguo [1 ]
Zhang, Tao [1 ]
Yuan, Xiaotian [1 ]
Shu, Jin [2 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, Xian 710049, Shaanxi, Peoples R China
[2] Xian Thermal Power Res Inst Co Ltd, Xian 710054, Shaanxi, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 14期
关键词：
direct-drive permanent magnet synchronous generator (D-PMSG); frequency coupling; harmonic linearization; impedance modeling; sub/supsynchronous oscillation; STABILITY ANALYSIS; POWER-SYSTEMS; SEQUENCE;
D O I：
10.3390/app9142831
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Subsynchronous oscillation (SSO) is a critical issue for the direct-drive permanent magnet synchronous generator (D-PMSG) based wind farm integrated to a weak onshore AC grid. To analyze the mechanism of the SSO phenomenon of D-PMSG based wind farm, widely used impedance-based stability analysis method is utilized in this paper. First, the impedance model based on the harmonic linearization theory of grid-connected D-PMSG is proposed, and the mechanism of sub/supsynchronous currents coupling is analyzed quantitatively for the first time. Then, based on the impedance model and relative stability criterion, the influence of wind farm operating parameters and grid impedance on stability is discussed. Simulations are carried out to verify the correctness of theoretical analysis.
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页数：16
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