The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Control Strategy of Improved Transient Response for a Doubly Fed Induction Generator in Medium Voltage Wind Power System under Grid Unbalance

계통 불평형시 과도 응답 특성이 개선된 고압 이중여자 유도형 풍력발전 시스템의 제어 전략

  • Han, Dae-Su (Dept. of Electrical Engineering, Smart Grid Research Center, Chonbuk Nat'l University) ;
  • Suh, Yong-Sug (Dept. of Electrical Engineering, Smart Grid Research Center, Chonbuk Nat'l University)
  • Received : 2014.11.25
  • Accepted : 2014.12.24
  • Published : 2015.02.20
Download PDF
⟨ Previous Next ⟩

Abstract

This paper investigates control algorithms for a doubly fed induction generator with a back-to-back three-level neutral-point clamped voltage source converter in a medium-voltage wind power system under unbalanced grid conditions. Negative sequence control algorithms to compensate for unbalanced conditions have been investigated with respect to four performance factors: fault ride-through capability, instantaneous active power pulsation, harmonic distortions, and torque pulsation. The control algorithm having zero amplitude of torque ripple indicates the most cost-effective performance in terms of torque pulsation. The least active power pulsation is produced by a control algorithm that nullifies the oscillating component of the instantaneous stator active and reactive power. A combination of these two control algorithms depending on operating requirements and depth of grid unbalance presents the most optimized performance factors under generalized unbalanced operating conditions, leading to a high-performance DFIG wind turbine system with unbalanced grid adaptive features.

Keywords

References

  1. E. Muljadi, T. Batan, D. Yildirim, and C. P. Butterfield, "Understanding the unbalanced-voltage problem in wind turbine generation," in Conference proceedings of IAS 1999, pp. 1359-1365, 1999.
  2. H. Song and K. Nam, "Dual current control scheme for pwm converter under unbalanced input voltage conditions," IEEE Transactions on Industrial Electronics, Vol. 46, No. 5, pp. 953-959, Oct. 1999. https://doi.org/10.1109/41.793344
  3. A. Stankovic and T. A. Lipo, "A generalized control method for input-output harmonic elimination for the PWM boost type rectifier under simultaneous unbalanced input voltages and input impedances," in Conference proceedings of PESC, pp. 1309-1314, 2001.
  4. Y. S. Suh and T. A. Lipo, "Control scheme in hybrid synchronous stationary frame for PWM AC/DC converter under generalized unbalanced operating conditions," IEEE Transactions on Industry Applications, Vol. 42, No. 3, pp. 825-835, May/June 2006.
  5. T. Brekken and N. Mohan, "A novel doubly-fed induction wind generator control scheme for reactive power control and torque pulsation compensation under unbalanced grid voltage conditions," in Conference proceedings of PESC 2003, Vol. 2, pp. 760-764, Jane 2003.
  6. T. Brekken and N. Mohan, "Control of a doubly fed induction wind generator under unbalanced grid voltage condition," IEEE Transactions on energy conversion, Vol. 22, No. 1, pp. 129-135, Mar. 2007. https://doi.org/10.1109/TEC.2006.889550
  7. A. G. Abo-Khalil, D. C. Lee, and J. I. Jang, "Control of back-to-back PWM converters for DFIG wind turbine systems under unbalanced grid voltage," IEEE Industrial Electronics International Symposium, pp. 2637-2642, June 2007.
  8. L. Fan, H. Yin, and R. Kavasseri, "Negative sequence compensation techniques of DFIG-based wind energy systems under unbalanced grid conditions," IEEE Power Electronics and Machines in Wind Applications, pp 1-6, June 2009.
  9. L. Xu, "Coordinated control of DFIG's rotor and grid side converters during network unbalance," IEEE Transactions on Power Electronics, Vol. 23, No. 3, pp. 1041-1049, May 2008. https://doi.org/10.1109/TPEL.2008.921157
  10. Y. Wang, L. Xu, and B. W. Williams, "Control of DFIG-based wind farms for network unbalance compensation," IEEE Power Electronics Specialists Conference, pp 113-119, June 2008.
  11. W. Qiao and R. G. Harley, "Improved control of DFIG wind turbines for operation with unbalanced network voltages," IEEE Industry Applications Society Annual Meeting, pp. 1-7, Oct. 2008.
  12. J. Hu and Y. He, "Reinforced control and operation of DFIG-based wind-power-generation system under unbalanced grid voltage conditions," IEEE Transactions on Energy Conversion, Vol. 24, No. 4, pp 905-915, Dec. 2009. https://doi.org/10.1109/TEC.2008.2001434
  13. L. Xu and Y. Wang, "Dynamic modeling and control of DFIG-based wind turbines under unbalanced network conditions," IEEE Transactions on Power Systems, Vol. 22, No. 1, pp. 314-323, Feb. 2007. https://doi.org/10.1109/TPWRS.2006.889113
  14. J. Rodriguez, S. Bernet, B. Wu, J. O. Pontt, and S. Kouro, "Multilevel voltage-source-converter topologies for industrial medium-voltage drives," IEEE Transactions on Industrial Electronics, Vol. 54, No. 6, pp. 2930-2945, Dec. 2007. https://doi.org/10.1109/TIE.2007.907044
  15. Y. S. Suh, J. Steinke, and P. Steimer, "Efficiency comparison of voltage source and current source drive system for medium voltage applications," IEEE Transactions on Industrial Electronics, Vol. 54, No. 5, pp. 2521-2531, Oct. 2007. https://doi.org/10.1109/TIE.2007.900352
  16. C. R. Baier, J. I. Guzman, J. R. Espinoza, M. A. Perez, and J. R. Rodriguez, "Performance evaluation of a multicell topology implemented with single-phase nonregenerative cells under unbalanced supply voltages," IEEE Transactions on Industrial Electronics, Vol. 54, No. 6, pp. 2969-2978, Dec. 2007. https://doi.org/10.1109/TIE.2007.903977
  17. Y. S. Suh, Y. R. Go, and D. H. Rho, "A comparative study on control algorithm for active front-end rectifier of large motor drives under unbalance Input," IEEE Transactions on Industrial Electronics, Vol. 47, No. 3, pp. 1419-1431, May/June 2011.
  18. J. Schonberger, "Modeling a DFIG wind turbine system using Plecs," Application note of Plexim GmbH, pp 2969-2978, Dec. 2008.
  19. N. Miller, W. Price, and J. Sanchez-Gasca, "Dynamic modeling of GE 1.5 and 3.6 MW wind turbine generators," Technical Report, GE Power Systems Energy Consulting, 2003.
  20. M. Bollen, "Characterisation of voltage sags experienced by three-phase adjustable-speed drives," IEEE Transactions on Power Delivery, Vol. 12, No. 4, pp. 1666-1671, Oct. 1997. https://doi.org/10.1109/61.634188
  21. O. S. Ebrahim, P. K. Jain, and G. Nishith, "New control scheme for the wind-driven doubly fed induction generator under normal and abnormal grid voltage conditions," Journal of Power Electronics, Vol. 8, No. 1, pp. 10-22, Jan. 2008.
  22. V. T. Phan, H. H. Lee, and T. W. Chun, "An effective rotor current controller for unbalanced stand-alone DFIG systems in the rotor reference frame," Journal of Power Electronics, Vol. 10, No. 6, pp. 724-732, Nov. 2010. https://doi.org/10.6113/JPE.2010.10.6.724
  23. Y. Park, D. Han, and Y. Suh, "Minimization of active power and torque ripple for a doubly fed induction generator in medium voltage wind power systems under unbalanced grid conditions," Journal of Power Electronics, Vol. 13, No. 6, pp. 1032-1041, Nov. 2013. https://doi.org/10.6113/JPE.2013.13.6.1032