IJSER Home >> Journal >> IJSER
International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 12    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 12, December 2011
Power Quality Improvement by UPQC device in Doubly Fed Induction Generator Wind Farm to Weak-Grid Connection
Full Text(PDF, 3000)  PP.  
Author(s)
Miss Sobha Rani Injeti, K. Ratna Raju
KEYWORDS
Wind Energy, Doubly Fed Induction Generator, UPQC, Power Quality, voltage fluctuation, Wind Farm stability, weak grid
ABSTRACT
This paper mainly deals with the regulation of voltage at wind farm (WF) terminals and the improvement of power quality and WF stability in a WF to Weak-Grid connection. In facilities with moderated power generation, the WF are connected through medium voltage (MV) distribution headlines. A situation commonly found in such scheme is that the power generated is comparable to the transport capacity of the grid. This case is known as Wind Farm to Weak Grid Connection, and its main problem is the poor voltage regulation at the point of common coupling (PCC). Thus, the combination of weak grids, wind power ?uctuation and system load changes produce disturbances in the PCC voltage, worsening the Power Quality and WF stability. This situation can be improved using Custom power devices technology (CUPS), the Uni?ed Power Quality Compensator (UPQC). The internal control strategy is based on the management of active and reactive power in the series and shunt converters of the UPQC, and the exchange of power between converters through UPQC DC–Link. Simulations results show the effectiveness of the proposed compensation strategy for the enhancement of Power Quality and Wind Farm stability.
References
[1] M.F. Farias, P.E. Battaiotto and M.G. Cendoya “Wind Farm to Weak-Grid Connection using UPQC Custom Power Device” ; IEEE 2010. p.p.1745-1750.

[2] B.Chitti Babu , K.B.Mohanty, “Doubly-Fed Induction Generator for Variable Speed Wind Energy Conversion Systems- Modeling & Simulation “International Journal of Computer and Electrical Engineering, February, 2010. P.P. 1793-8163.

[3] M.P. P´alsson, K. Uhlen, J.O.G. Tande. “Large-scale Wind Power Integration and Voltage Stability Limits in Regional Networks”; IEEE 2002. p.p. 762–769

[4] P. Ledesma, J. Usaola, J.L. Rodriguez “Transient stability of a fixed speed wind farm” Renewable Energy 28, 2003 pp.1341–1355

[5] P. Rosas “Dynamic influences of wind power on the power system”. Technical report RISØR-1408. Ørsted Institute. March 2003.

[6] R.C. Dugan, M.F. McGranahan, S. Santoso, H.W. Beaty “Electrical Power Systems Quality” 2nd Edition McGraw–Hill, 2002. ISBN 0-07-138622-X

[7] P. Kundur “Power System Stability and Control” McGraw-Hill, 1994. ISBN 0-07-035958-X

[8] N. G. Hingorani y L. Gyugyi. “Understanding FACTS”. IEEE Press; 2000.

[9] Z. Saad-Saoud, M.L. Lisboa, J.B. Ekanayake, N. Jenkins and G. Strbac “Application of STATCOM’s to wind farms” IEE Proc. Gen. Trans. Distrib. vol. 145, No. 5; Sept. 1998

[10] T. Burton, D. Sharpe, N. Jenkins, E. Bossanyi “Wind Energy Handbook” John Wiley & Sons, 2001. ISBN 0-471-48997-2.

[11] A. Ghosh, G. Ledwich “Power Quality Enhancement Using Custom Power Devices” Kluwer Academic Publisher, 2002. ISBN 1-4020-7180-9

[12] C. Schauder, H. Mehta “Vector analysis and control of advanced static VAR compensators” IEE PROCEEDINGS-C, Vol.140, No.4, July 1993.

[13] E.M. Sasso, G.G. Sotelo, A.A. Ferreira, E.H. Watanabe, M. Aredes, P.G. Barbosa, “Investigac¸ ˜ao dos Modelos de Circuitos de Sincronismo Trif´asicos Baseados na Teoria das Potˆencias Real e Imagin´aria Instant ˆaneas (p–PLL e q–PLL)”, In: Proc. (CDROM) of the CBA 2002 – XIV Congresso Brasileiro de Automtica, pp. 480-485, Natal RN, Brasil, 1-4, Sep. 2002

[14] International Electrotechnical Commission ”INTERNATIONAL STANDARD IEC 61000-4-15: Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 15: Flickermeter Functional and design specifications.” Edition 1.1 2003

[15] H. Akagi, E. H. Watanabe, M. Aredes “Instantaneous power theory and applications to power conditioning”, John Wiley & Sons, 2007. 978-0-470-10761-4.

Untitled Page