Study on the Transient Power Angle Characteristic of Doubly-Fed Induction Generator

Abstract:

Doubly-fed induction generator (DFIG) wind turbine has become a mainstream machine of wind generators in China. As the different operational characteristics between the DFIG and synchronous generator (SG), the large amount of DFIG-based wind generators installed in the grid may bring a series of impacts on the dynamic behaviors of power system. In order to study the DFIG transient characteristics on the condition of the voltage dips happening in the power system, a definition of the DFIG power angle is given and the effects of the converters on the DFIG power angle are discussed. On this basis, the transient angle characteristic of the DFIG is derived. The DFIG transient characteristics are performed by Matlab/Simulink software, the simulation results demonstrate that the DFIG has the resemble power angle characteristic of SG and prove the effectiveness of the derivation process, which lay a foundation for the study on the interactions between the DFIG and power system.

• Periodical: Advanced Materials Research (Volumes 960-961)
• Pages: 580-585
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.960-961.580
• Online since: June 2014
• Authors: Qiang Yu, Can Ping Yu, Hua Dong Sun, Jun Yi, Xu Zhi Luo
• Keywords: Double Fed Induction Generation (DFIG), Power Angle, Transient Characteristics, Voltage Dip

References

[1] Simulation Study on Dynamic Response of Doubly Fed Induction Generators During System Voltage Sag Caused by Power Grid Faults[J]. Power System Technology, 2010, 34(8): 170-175(in Chinese).

[2] Jia Junchuan, Liu Jin, Zhang Yigong. Dynamic Characteristics of Stator Flux of Doubly-fed Induction Generator During Grid Voltage Fault[J]. Proceedings of the CSEE, 2011, 31(3): 90-96(in Chinese).

DOI: 10.1109/cris.2010.5617514

[3] Analysis on Low Voltage Ride-Through Techniques for Wind Turbines Using Doubly-Fed Induction Generator[J]. Power System Technology, 2010, 33(9): 72-77(in Chinese).

DOI: 10.1109/appeec.2012.6307096

[4] 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(in Chinese).

DOI: 10.1109/epe.2005.219521

[5] Yang Shuying, Zhang Xing, Zhang Chongwei, et al. Electro-magnetic Transition of Doubly Fed Wind Turbines Initiated by Voltage Dip [J]. Automation of Electric Power Systems, 2008, 32(19): 85-91(in Chinese).

[6] Li Qin, Zhang Xing, Yang Shuying, et al. Dynamic Behavior of DFIG Rotor During Low Voltage Ride-Through[J]. Proceedings of the CSU-EPSA, 22010, 22(5): 19-24(in Chinese).

[7] Guo Jiahu, Zhang Luhua, Cai Xu. Dynamic Response of Wind Power Generation Based on DFIG Under Grid Fault [J]. Acta Energiae Solaris Sinica, 2010, 31(8): 1023-1029(in Chinese).

DOI: 10.1109/ipemc.2009.5157782

[8] Lopez J, Sanchis P, Roboam X, et al. Dynamic behavior of the doubly fed induction generator during three-phase voltage dips[J]. IEEE Trans on Energy Conversion, 2007, 22(3): 709-717.

DOI: 10.1109/tec.2006.878241

[9] Li Hui, Zhao Meng, Ye Renjie, et al. Evaluation and analysis of transient current of a DFIG wind generation system under grid fault[J]. Electric Machines and Control, 2010, 14(8): 45-51(in Chinese).

[10] Zhang Xueguang, Xu Dianguo, Li Weiwei. Analysis of three-phase short circuit current of doubly fed induction generator[J]. Electric Machines and Control, 2008, 12(5): 493-497(in Chinese).

[11] Shi Yihui, Lu Zongxiang, Min Yong, et al. Practical Calculation Model of Three-phase Short-circuit Current for Doubly-fed Induction Generator [J]. Automation of Electric Power Systems, 2011, 35(8): 38-43(in Chinese).

[12] Hao Zhenghang, Yu Yixin, Zeng Yuan. Transient performance of DFIG power angle in wind farm and its control strategy [J]. Electric Power Automation Equipment , 2011, 31(2): 79-83 (in Chinese).

[13] Hao Zhenghang, Yu Yixin. The influence of doubly-fed induction generator on stability of power system [J]. Relay, 2011, 39(3): 7-11 (in Chinese).

[14] Hughes F. M, Anaya-Lara O, Jenkins N, et al. Control of DFIG-Based Wind Generation for Power Network Support [J]. IEEE Trans on Power Systems, 2005, 20(4): 1958-(1966).

DOI: 10.1109/tpwrs.2005.857275

[15] Tang Yunmiao. Motor Theory[M]. Beijing: Tsinghua University Press, 2002: 179-193.