Practical SSR incidence and influencing factor analysis of DFIG-based series-compensated transmission system in guyuan farms

被引：0
|
作者：
Dong X. [1 ]
Tian X. [2 ]
Zhang Y. [1 ]
Song J. [3 ]
机构：
[1] North China Branch of State Grid Corporation of China, Beijing
[2] School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), Beijing
[3] Jilin Electric Power Co., Ltd., Jilin
来源：
Gaodianya Jishu/High Voltage Engineering | 2017年 / 43卷 / 01期
关键词：
Constant series compensation; Doubly fed induction generator(DFIG); Eigenvalue sensitivity analysis; Influence factors; Subsynchronous resonance(SSR);
D O I：
10.13336/j.1003-6520.hve.20161227042
中图分类号：
学科分类号：
摘要：
We have analyzed subsynchronous resonance (SSR) characteristics of DFIG-based series-compensated transmission system in Guyuan. Firstly, DFIG-based series-compensated transmission system in Guyuan and the SSR incidence are introduced. The characteristics and main influencing factors are summarized through the analysis and statistics of typical oscillation phenomenon. Then, an equivalent model of the wind farm series-compensated transmission system is built in PSCAD/EMTDC and the incidence is reproduced. The mechanism of SSR is explained through eigenvalue analysis. Thereby, dominant influencing factors are determined by eigenvalue sensitivity analysis and influencing level is analyzed quantitatively. The dominant factors influencing stability and resonant frequency are distinguished. The dominant factors influencing stability are: rotor speed, output power, DFIG number, compensation level, and RSC current controller gain. Factors that influencing resonant frequency are compensation level, DFIG number, rotor speed, and output power. In the end,suggestions for safe operation are given according to the field data and theoretical analysis. © 2017, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：321 / 328
页数：7
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