Frequency and Voltage Stability Assessment Applied to Load Shedding

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2015 by IJETT Journal
Volume-19 Number-2
Year of Publication : 2015
Authors : K.Reddy Gayathri , G.V.Maruteswar
  10.14445/22315381/IJETT-V19P219

MLA 

K.Reddy Gayathri , G.V.Maruteswar "Frequency and Voltage Stability Assessment Applied to Load Shedding ", International Journal of Engineering Trends and Technology (IJETT), V19(2), 106-115 Jan 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract

Under voltage load shedding (UVLS) and under frequency load shedding (UFLS) is plays vital role in the power system operation. As large disturbances are occur frequently in previous days. Generally these two methods are work independently from each other, and are not designed to integrated way to use their combined effect on load shedding. The reactive power hardly consider in load shedding process. To fill this gap, we froth put in this paper a new concentration about adaptive load shedding algorithm. The phasor measurement unit can gives both voltage and frequency information. The main concept of the new method is consideration of reactive power combined with active power in load shedding strategy. This method is gives information about the combined voltage and frequency stability issues is better than the independent approaches. The new method is tested on the IEEE 39-Bus system, in order to compare with other methods. By applying this new method to the system, that system will be back to new stable steady state that is better from the perspective of voltage and frequency and loadability.

References

[1] P. Kunduret al., IEEE/CIGRE Joint Task Force on Stability Terms and Definitions, “Definition and classification of power system stability,” IEEE Trans. Power Systems, vol. 19, no. 3, pp. 1387–1401, Aug. 2004.
[2] A. P. Ghaleh, M. SanayePasand, and A. Saffarian, “Power system stability enhancement using a new combinational load-shedding algorithm,” IET Gen., Transm., Distrib., vol. 5, no. 5, pp. 551–560, May 2011.
[3] A. Saffarian and M. Sanaye-Pasand, “Enhancement of power system stability using adaptive combinational load shedding methods,” IEEE Trans. Power Syst., vol. 26, no. 3, pp. 1010–1020, Aug. 2011.
[4] P. M. Anderson and M. Mirheydar, “An adaptive method for setting under frequency load shedding relays,” IEEE Trans. Power Syst., vol. 7, no. 2, pp. 647–655, May 1992.
[5] V. V. Terzija, “Adaptive underfrequency load shedding based on the magnitude of the disturbance estimation,” IEEE Trans. Power Syst., vol. 21, no. 3, pp. 1260–1266, Aug. 2006.
[6] Z. Zhong, “Power systems frequency dynamic monitoring system design and applications,” PhD. dissertation, Dept. Elect.Comput. Eng., Virginia Polytechnic Institute and State Univ., Blacksburg, VA, USA, Jul. 2005.
[7] U.Rudez and R. Mihalic, “Analysis of underfrequency load shedding using a frequency gradient,” IEEE Trans. Power Del., vol. 26, no. 2, pp. 565–575, Apr. 2011.
[8] H. Seyedi and M. Sanaye-Pasand, “New centralised adaptive load-shedding algorithms to mitigate power system blackouts,” IET Gen., Transm, Distrib. vol.3, no.1, pp.99–114, Jan.2009.
[9] D. Karlsson, M. Hemmingsson, and S. Lindahl, “Wide area system monitoring and control-terminology, phenomena, and solution implementation strategies,” IEEE Power and Energy Mag., vol. 2, no. 5, pp. 68–76, Sep.–Oct. 2004.
[10] M. Glavic and T. Van Cutsem, “Wide-area detection of voltage in-stability from synchronized phas or measurements. Part I: Principle,” IEEE Trans. Power Syst., vol. 24, no. 3, pp. 1408–1416, Aug. 2009.
[11] J. De La Ree, V. Centeno, J. S. Thorp, and A. G. Phadke, “Synchrjonized phasor measurement applications in power systems,” IEEE Trans. Smart Grid, vol. 1, no. 1, pp. 20–27, Jun. 2010.
[12] A.G.PhadkeandJ.S.Thorp Synchronized Phasor Measurements and Their Applications. New York, NY, USA: Springer, 2008.
[13] IEEE Standard for Synchrophasor Measurements for Power Systems, IEEE Std. C37.118.1-2011 (Revision of IEEE Std C37.118-2005), Dec.2011.
[14] B. Milosevic and M. Begovic, “Voltage-stability protection and control using a wide-area network of phasor measurements,” IEEE Trans. Power Syst., vol. 18, no. 1, pp. 121–127, Feb. 2003.
[15] M. Zima, M. Larsson, P. Korba, C. Rehtanz, and G.Andersson, “Design aspects for wide-area monitoring and control systems,” Proc.IEEE, vol. 93, no. 5, pp. 980–996, May 2005.
[16] J. Bialek, “Topological generation and load distribution factors for supplement charge hallocation in transmission open access,” IEEE Trans. Power Syst., vol. 12, no. 3, pp. 1185–1193, Aug. 1997.
[17] B. Zhang, S. Chen, and Z. Yan, Advanced Analysis for Power Network, 2nd ed. Beijing, China: Tsinghua Univ. Press, 2007.

Keywords
Adaptive load shedding methods, under voltage load shedding, under frequency load shedding, synchrophasor, power system stability, phasor measurement unit (PMUs)