Voltage Sag Detection Algorithm for Instantaneous Voltage Sag Corrector


Vol. 2, No. 3, pp. 162-170, Jul. 2002
10.6113/JPE.2001.02.3.162


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 Abstract

Voltage sag detection algorithm for voltage sag corrector is proposed in this paper. To quantify the standard of voltage unbalance under the faulted conditions, the 3-phase unbalanced voltages are decomposed into two balanced 3-phase symmetrical components of the positive and negative sequence voltages, which is defined by the magnitude factor (MF) and unbalance factor (UF). It is analyzed that MF and UF values are given as the dc constant values even though under the voltage unbalance condition. This paper also proposes the control scheme of the instantaneous voltage sag corrector based on this detection algorithm. The validity of the proposed algorithm is verified through the EMTDC simulation and experiments.


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Cite this article

[IEEE Style]

S. Lee and J. Choi, "Voltage Sag Detection Algorithm for Instantaneous Voltage Sag Corrector," Journal of Power Electronics, vol. 2, no. 3, pp. 162-170, 2002. DOI: 10.6113/JPE.2001.02.3.162.

[ACM Style]

Sang-Hoon Lee and Jae-Ho Choi. 2002. Voltage Sag Detection Algorithm for Instantaneous Voltage Sag Corrector. Journal of Power Electronics, 2, 3, (2002), 162-170. DOI: 10.6113/JPE.2001.02.3.162.