Analysis of Grid-connected Stability of Voltage-source-type PMSG-based Wind Turbine Based on Virtual Synchronous Control

被引：0
|
作者：
Wang D. [1 ]
Sun H. [1 ]
Huang B. [1 ]
Han Y. [1 ]
Mao Y. [1 ]
Zhu T. [1 ]
机构：
[1] State Key Laboratory of Advance Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan
来源：
Gaodianya Jishu/High Voltage Engineering | 2022年 / 48卷 / 08期
关键词：
hybrid wind farm; low-frequency oscillation; subsynchronous oscillation (SSO); virtual synchronous generator control (VSG); voltage source typed PMSG; weak grid;
D O I：
10.13336/j.1003-6520.hve.20211985
中图分类号：
学科分类号：
摘要：
With the increase of wind turbines, the stable operation of wind turbine under weak grid is facing challenges. The voltage-source-type wind turbine is more suitable for weak grid because it is not affected by phase-locked loop and can provide frequency and voltage support. In order to study the grid-connected stability of voltage-source-type permanent magnet synchronous generator (PMSG), the model of system is established. Then, the grid-connected stability of current/voltage-source-type PMSG are compared through eigenvalue analysis. It is found that voltage-source-type PMSG is more adaptable to weak grid but prone to low-frequency oscillation at high short circuit ratio (SCR). And the influence of key parameters is studied. Then, the grid-connected stability of the current/voltage-source-type PMSG hybrid wind farm is studied. It is found that voltage-source-type PMSG can improve the stability of wind farm under weak grid. Finally, the electromagnetic transient simulations verify the eigenvalue analysis results. © 2022 Science Press. All rights reserved.
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页码：3282 / 3294
页数：12
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