1. Shanghai University Shanghai 200072 China 2. Shanghai University of Engineering Science Shanghai 201620 China 3. Nantong University Nantong 226019 China
Abstract：Wind turbine’s operating condition during grid fault influences grid stability. Recently low voltage ride through (LVRT) of doubly fed induction generator (DFIG) became an important research topic. A grid side converter (GSC) LVRT control method is proposed in this paper based on GSC response characteristics during the grid symmetric fault. The method modifies the modulation voltage signal during the grid fault to control the AC input current and to stabilize the DC-link voltage. The test results prove that the GSC LVRT control method would make DC-link voltage stable and convert rotor power to the grid with a fast response.
蔚兰, 陈国呈, 曹大鹏, 吴国祥, 陈宇晨. 双馈感应风力发电机网侧变换器低电压穿越控制策略[J]. 电工技术学报, 2011, 26(7): 37-43.
Yu Lan, Chen Guocheng, Cao Dapeng, Wu Guoxiang, Chen Yuchen. Low Voltage Ride Through Control Strategy of Grid Side Converter for Double-Fed Induction Generators. Transactions of China Electrotechnical Society, 2011, 26(7): 37-43.
[1] Erlich I, Winter W, Dittrich A. Advanced grid requirements for the integration of wind turbines into the german transmission system [C]. Power Engineering Society General Meeting, 2006: 1-7. [2] Perez P S, Van Hertem D, Driesen J, et al. Wind power in the European Union: grid connection and regulatory issues[C]. Power Systems Conference and Exposition, 2006: 776-783. [3] Rose J D, Hiskens I A. Challenges of integrating large amounts of wind[C]. 2007 1st Annual IEEE Systems Conference, 2007: 1-7. [4] 向大为, 杨顺昌, 冉立. 电网对称故障时双馈感应发电机不脱网运行的励磁控制策略[J]. 中国电机工程学报, 2006, 26(3): 164-170. [5] 王伟, 孙明冬, 朱晓东. 双馈式风力发电机低电压穿越技术分析[J]. 电力系统自动化, 2007, 31(23): 84-89. [6] 姚俊, 廖勇. 电网短路时交流励磁风电机组网侧变换器控制策略[J]. 电力系统自动化, 2008, 32(12): 83-87. [7] 王锋, 姜建国. 风力发电用双PWM变换器的功率平衡联合控制策略研究[J]. 中国电机工程学报, 2006, 26(22): 134-139. [8] 姚俊, 廖勇, 周求宽, 等. 双PWM控制交流励磁电源直流链电压的稳定控制策略[J]. 电力系统自动化, 2007, 31(21): 63-66. [9] 刘其辉, 贺益康, 张建华. 交流励磁变速恒频双馈型异步发电机的稳态功率关系[J]. 电工技术学报, 2006, 21(2): 39-44. [10] 张崇巍, 张兴. PWM整流器及其控制策略[M]. 北京: 机械工业出版社, 2003.
2011, Vol. 26 
