电网电压跌落情况下双馈风力发电机电磁过渡过程及控制策略

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Abstract This paper firstly analyses the electromagnetic transient process respective compo- nents change law of doubly-fed induction generator(DFIG) under the grid voltage dip. Through solving differential equations in time-domain, the results that the stator and rotor currents include not only the components of itself but also DC components and AC components of speed frequency are obtained, and simulation spectrum analysis is carried out. The conclusion is consistent between simulation spectrum analysis and theoretical analysis. It expounds the root cause of overvoltage and overcurrent in rotor side. And then, the DFIG low voltage ride-through(LVRT) control strategy based on considering electromagnetic transient process is proposed, improving traditional vector control algorithm. The simulation contrastive analysis shows that the improved control strategy can restrain the rotor current impact effectively, and increase the uninterrupted operation ability of DFIG under grid voltage dip.

Key words： Doubly-fed induction generator transient analysis uninterrupted operation precise model low voltage ride-through

Received: 10 October 2010 Published: 10 March 2014

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TM614

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[1] 李梅, 李建林, 赵斌, 等. 不同电网故障情况下DFIG运行特性比较[J]. 高电压技术, 2008, 34(4): 777-782.
[2] 胡家兵, 孙丹, 贺益康, 等. 电网电压骤降故障下双馈风力发电机建模与控制[J]. 电力系统自动化, 2006, 30(8): 21-26.
[3] 李建林, 许洪华. 风力发电系统低电压运行技术[M]. 北京: 机械工业出版社, 2008.
[4] 李建林, 许鸿雁, 梁亮, 等. VSCF-DFIG在电压瞬间跌落情况下的应对策略[J]. 电力系统自动化, 2006, 30(19): 65-68.
[5] 蒋雪冬, 赵舫. 应对电网电压骤降的双馈感应风力发电机Crowbar控制策略[J]. 电网技术, 2008, 32(12): 84-89.
Jiang Xuedong, Zhao Hang. Crowbar control strategy for doubly fed induction generator of wind farm during power grid voltage dips[J]. Power System Technology , 2008, 32(12): 84-89.
[6] 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): 64-68.
[7] Xiang Dawei, Ran Li, Tavner P J, et al. Control of a doubly fed induction generator in a wind turbine during grid fault ride-through[J]. IEEE Transactions on Energy Conversion, 2006, 21(3): 652-662.
[8] Zhao Jing, Zhang Wei, He Yikang, et al. Modeling and control of a wind-turbine-driven dfig incorporating core saturation during grid voltage dips[C]. Proceedings of the 11th International Conference on Electrical Machines and Systems, Wuhan, China, 2008: 2438-2442.
[9] 操瑞发, 朱武, 涂祥存, 等. 双馈式风力发电系统低电压穿越技术分析[J]. 电网技术, 2009, 33(9): 72-77.
[10] 李建林, 赵栋利, 李亚西, 等. 适合于变速恒频双馈感应发电机的Crowbar对比分析[J]. 可再生能源, 2006, 32(5): 57-60.
[11] 姚骏, 廖勇, 唐建平. 电网短路故障时交流励磁风力发电机不脱网运行的励磁控制策略[J]. 中国电机工程学报, 2007, 27(30), 65-71.
[12] 蔡帜, 刘建政, 梅红明, 等. 双馈风力发电机在电网电压小幅骤降时的保护策略[J]. 电力系统保护与控制, 2009, 37(21): 41-44.
Cai Zhi, Liu Jianzheng, Mei Hongming, et al. Protection strategy of DFIG under grid voltage narrow dip[J]. Power System Protection and Control, 2009, 37(21): 41-44.
[13] 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. 电力系统自动化, 2007, 31(23): 84-89.
[14] He Yikang, Hu Jiabing, Zhao Rende. Modeling and control of wind-turbine used DFIG under network fault conditions[C]. Proceedings of the 8th International Conference on Electrical Machines and Systems, Nanjing, China: 2005: 986-991.
[15] 胡家兵, 贺益康. 双馈风力发电系统的低电压穿越运行与控制[J]. 电力系统自动化, 2008, 32(2): 49-52.