Grid Fault Analysis of Unbalanced Loaded DFIG

Abstract:

The electrical energy consumption is rising and there is a steady increase in the demand of power generation. To meet the demand fuel reserves are not sufficient. So, we can go to non-conventional energy sources like solar, tidal, wind and etc. In that wind generating system is rapidly growing one. The wind speed is not constant at all times they can using variable speed wind turbine (VSWT) or Doubly Fed Induction Generator (DFIG). The DFIG wind turbine is recently most used turbine, because it maintains fixed voltage and frequency at variable wind speeds using power electronics equipments like RSC and GSC. In this paper discus the stability of a DFIG wind turbine connected to grid, during unbalanced loads and grid faults. Dynamic analysis and fault analysis to find the stability of system were going to carry out in this work. And to improve stability of system during abnormal conditions STATCOM is proposed.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 6622-6629
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.6622
• Online since: January 2012
• Authors: R. Bhanu Raghava Prakash, K. Trinath, S. Sundeep
• Keywords: Double Fed Induction Generation (DFIG), Wind Turbine (WT)

References

[1] Ted K. A Brekken, Ned Mohan, Control of a Doubly Fed Induction wind generator under unbalanced grid voltage conditions, IEEE Transactions on Energy Conservation, Vol 22, No. 1, March 2007, pp.129-135.

DOI: 10.1109/tec.2006.889550

[2] M. V. A. Nunes, J. A. Pecas Lopes, H. H. Zurn, U. H. Bezerra, and R. G. Almeida, Influence of the variable-speed wind generators in transient stability margin of the conventional generators integrated in electrical grids, IEEE Trans. Energy Convers., vol. 19, no. 4, Dec. 2004, p.692.

DOI: 10.1109/tec.2004.832078

[3] M. Bruntt, J. Havsager, and H. Knudsen, Incorporation of wind power in the East Danish power system, in Proc. IEEE Power Tech., Budapest, Hungary, Aug. 29–Sep. 2, 1999, p.202–205.

DOI: 10.1109/ptc.1999.826485

[4] S. Muller and M. Deicke and R.W. De Doncker, Doubly fed induction generator system for wind turbines, IEEE Industry Application Magazine, May/June 2002, pp.26-33.

DOI: 10.1109/2943.999610

[5] N. G. Hingorani and L. Gyugyi, Understanding FACTS: Concepts and Technology of Flexible AC Transmission Systems. New York: IEEE Press, (2000).

[6] C. Schauder and H. Mehta, Vector analysis and control of advanced static VAR compensators, Proc. Inst. Elect. Eng. —Gener. Transm. Distrib., vol. 140, no. 4, p.299–306, Jul. (1993).

DOI: 10.1049/ip-c.1993.0044

[7] J.G. Slootweg, H. Polinder, and W.L. King, Dynamic modeling of a wind turbine with doubly fed induction generator , in proc. IEEE Power Eng. Soc. Summer Meeting, Vancouver, BC, Canada, July 15-19, 2001, pp.644-649.

DOI: 10.1109/pess.2001.970114

[8] Li Wang, Jian-Yi Su Dynamic performances of an isolated selfexcited induction generator under various loading Conditions, IEEE Transaction on Energy Conversion, Vol. 14, No. 1, March 1999, pp.93-100.

DOI: 10.1109/60.749153

[9] R. Krishnan, Electric Motor drives modelling , analysis and control, Prentice-Hall of India private Ltd., New Delhi, (2005).

[10] V. Akhmatov, Analysis of dynamic behavior of electric power systems with large amount of wind power, Ph.D. dissertation, Tech. Univ. Denmark, Kgs. Lyngby, Denmark, Apr. (2003).

[11] W. Qiao, G. K. Venayagamoorthy, and R. G. Harley, Real-time implementation of a STATCOM on a wind farm equipped with doubly fed induction generators, in Proc. IEEE IAS 41st Annu. Meet., Tampa, FL, Oct. 8–12, 2006, p.1073–1080.

DOI: 10.1109/ias.2006.256657

[12] W. Qiao,W. Zhou, J. M. Aller, and R. G. Harley, Wind speed estimation based sensorless output maximization control for a wind turbine driving a DFIG, IEEE Trans. Power Electron., vol. 23, no. 3, p.1156–1169, May (2008).

DOI: 10.1109/tpel.2008.921185