Case Study of Voltage Sag in Customer Substation

Abstract:

This paper presents the main results of a work aimed at resolving voltage sags in customer substation, by measuring and analyzing the power quality problem. The work is based on a power quality monitoring system built in the customer substation. A large number of power quality events are recorded to pick up the voltage sag performance, the voltage sag characteristics and the number of sags issummarized. SARFI-curve method according to IEEE P1546 is used to analyze the sag influence on customer’s sensitive electrical equipment. Combined with the specific situation, a set of solution to voltage sag problem is proposed to improve power conditioning for sensitive loads and reduce economy losses.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 1085-1089
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.1085
• Online since: December 2012
• Authors: Zhi Sheng Lv, Meng Tan
• Keywords: 110kV Power Customer, Power Quality Monitoring, Sensitivity, Voltage Sag

References

[1] M.H.J. Bollen, Understanding Power Quality Problems. Voltage Sags and Interruptions, IEEE Press, 2000, New York.

[2] Bollen M H J. Comparing voltage dip survey results[C]. PES. Winter Meeting, IEEE. New York, 2002, 2: 1130-1134.

[3] LI Yan, Yu Xinmei, Xiong Xinyin et al. A survey on calculation and analysis methods of voltage sag [J]. Power System Technology， 2004， 28(14): 74-78.

[4] Bollen M H J, Sabin D D. Voltage-sag indices--recent developments in IEEE Pl564 Task force[C]. CIGRE/IEEE PES International Symposium, Canada, 2003.

DOI: 10.1109/qsepds.2003.159792

[5] IEC 61000-4-l1 Voltage dips short interruption and voltage variations immunity test[S].

[6] IEC 61000-4-30 Testing and measurement techniques: power quality measurement methods[S].

[7] IEEE P1564 Task Force, "Voltage Sag Indices – Draft 4", working document for IEEE P1564, Sept. 2003.