Technical comparison of alternatives for voltage sag mitigation in distribution systems

Herbert Enrique Rojas Cubides, Audrey Soley Cruz, Harvey David Rojas


In electrical systems the most critical disturbance is the interruption of the power service. However, the main concern for many commercial and industrial users is the mal-operation produced by voltage sags. This paper presents a study about performance of a distribution system in presence of voltage sags using a distribution generation (DG) unit and a distribution static compensator (DSTATCOM). The analysis is performed by using a stochastic generation of disturbances method and ATP/EMTP software tool. Several case studies in the IEEE-13 bus test feeder taking to account different DG locations and penetration levels for DG unit are presented. In addition, the relation between the injected DSTATCOM reactive power, the type of sag and the location of affected nodes is considered. Simulations show that for IEEE-13 system the DSTATCOM is the best alternative for sags mitigation. However, the DG unit is an alternative that can be considered in larger distribution systems to reduce the effects of voltage sags.


ATP/EMTP; DSTATCOM; distributed generation; sags mitigation; voltage sag


M. McGranaghan, D. Mueller, and M. Samotyj, “Voltage sags in industrial systems,” in Conference Record Industrial and Commercial Power Systems Technical Conference 1991, 1991, vol. 29, no. 2, pp. 397–403.

M. Bollen, Understanding power quality problems. Voltage Sags and Interruptions, 1st Editio. New York: Wiley-IEEE Press, 2013.

J. Milanovic, H. Ali, and M. Aung, “Influence of distributed wind generation and load composition on voltage sags,” in International Conference on Power Systems Transients, 2007, vol. 1, no. 1, pp. 13–22.

G. Reed, M. Takeda, and I. Iyoda, “Improved power quality solutions using advanced solid-state switching and static compensation technologies,” IEEE Power Eng. Soc. Winter Meet., vol. 2, pp. 1132–1137, 1999.

A. Nazarloo, S. H. Hosseini, and E. Babaci, “Flexible D-STATCOM performance as a flexible distributed generation in mitigating faults,” in 2nd IEEE Power Electronics, Drive Systems and Technology Conference (PEDSTC), 2011, pp. 568–573.

H. Masdi, N. Mariun, S. Mahmud, A. Mohamed, and S. Yusuf, “Design of a prototype D-STATCOM for voltage sag mitigation,” in Power and Energy Conference, 2004. PECon 2004. Proceedings. National, 2004, pp. 61–66.

A. IEEE Distribution System Subcomitte, “IEEE 13 Node Test Feeder Report,” 2001.

J. Martinez-Velasco and J. Martin-Arnedo, “EMTP model for analysis of distributed generation impact on voltage sags,” IET Gener. Transm. Distrib., vol. 1, no. 1, pp. 112–119, 2007.

J. a. Martinez and J. Martin-Arnedo, “Voltage sag studies in distribution Networks-part I: system modeling,” IEEE Trans. Power Deliv., vol. 21, no. 3, pp. 1670–1678, Jul. 2006.

H. E. Rojas, A. S. Cruz, and H. D. Rojas, “Voltage Sags Assessment in Distribution Systems Using Distributed Generation,” in VII Simposio Internacional sobre la Calidad de la Energía Eléctrica SICEL 2013, 2013, pp. 1–5.

H. Masdi and N. Mariun, “Construction of a Prototype D-Statcom for Voltage Sag Mitigation,” Eur. J. Sci. Res., vol. 30, no. 1, pp. 112–127, 2009.

H. E. Rojas, A. S. Cruz, and H. D. Rojas, “Analysis of voltage sag compensation in distribution systems using a multilevel DSTATCOM in ATP/EMTP,” DYNA, vol. 82, no. 192, pp. 26–36, 2015.

C. . Hsu and H. . Wu, “A new single-phase active power filter with reduced energy-storage capacity,” vol. 143, no. I, pp. 1–6, 1996.


  • There are currently no refbacks.

Copyright (c) 2017 TECCIENCIA