Clark Hochgraf, Lasseter R H. Statcom controls for operation with unbalanced voltages[J]. IEEE Transactions on Power Delivery, 1998, 13(2): 538-544.
[2]
Sato Y, Ishizuka T, Nezu K, et al. A new control strategy for voltage-type PWM rectifier to realize zero steady-state control error in input current[J]. IEEE Transactions on Industry Application, 1998, 34(3): 480-486.
Hu Jiabing, He Yikang, Guo Xiaoming, et al. Modeling and control of the DFIG based wind- power generation system under unbalanced grid voltage conditions[J]. Automation of Electric Power Systems, 2007, 31(14): 47-56.
[5]
Song H S, Nam K. Dual current control scheme for PWM converter under unbalanced input voltage conditions[J]. IEEE Transactions on Industrial Electronics, 1999, 46(5): 953-959.
[6]
Sun T, et al. Transient analysis of grid-connected wind turbines with DFIG after an external short- cincuit fault[C]. Proceeding of NWPC, Sweden, 2004.
[7]
Teodorescu R, et al. Proportional-resonant controllers and filters for grid-connected voltage-source converters[J]. IEE Proceedings of Electric Power Application, 2006, 153(5): 750-762.
[8]
Hu Jiabing, He Yikang, Wang Hongsheng. Adaptive rotor current control for wind-turbine driven DFIG using resonant controllers in a rotor rotating reference frame[J]. J. Zhejiang Univ. Sci. A, 2008, 9(2): 149-155.
[9]
Hu Jiabing, He Yikang, Nian Heng. Enhanced control of DFIG-used back-to-back PWM VSC under unbalanced grid voltage conditions[J]. J. Zhejiang Univ. Sci. A, 2007, 8(8): 1330-1339.
[10]
National Grid Transco. Appendix1, Extracts from the Grid Code-Connection Conditions. www.nationalgrid.com, Feb. 2004.