Concerns to the Emerging Grid Codes for Wind Turbines' LVRT inWeak AC Grid

被引：0

作者：

Yan, Yabing ^{[1
]}

Hu, Jiabing ^{[1
]}

Hu, Qi ^{[1
]}

Zhao, Mingquan ^{[1
]}

Li, Yan ^{[2
]}

Tang, Haiyan ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China

[2] China Elect Power Res Inst, Beijing 100192, Peoples R China

来源：

2014 17TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2014年

关键词：

wind turbine generatior; LVRT; grid codes; secure operating area; current control;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Wind turbine generators (WTGs) are required to ride through grid faults due to the increasing wind power penetrations. The existing grid codes around the world concerning low voltage ride-through (LVRT) were designed under the assumption that wind turbine operates in strong AC grid. However, under weak AC grid condition, the secure operating area (SOA) of WTG has changed obviously. Thus the behaviors of WTG restrained by the existing grid codes during LVRT may put itself at the risk of instability in weak grid, which may lead to the WTGs' disconnection from the grid and deteriorate the system transient stability after faults. The Limitations of WTGs' SOA caused by weak grid during LVRT are studied in this paper. And the results are verified by time domain simulations in Simulink/ MATLAB.

引用

页码：3036 / 3040

页数：5

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