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http://dx.doi.org/10.5207/JIEIE.2014.28.12.065

The Study on Detecting Scheme of Voltage Sag using the Two Difference Voltage  

Lee, Woo-Cheol (Hankyong National University Dept. of Electrical Electronic & Control Engineering, Institute for information technology convergence)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.28, no.12, 2014 , pp. 65-73 More about this Journal
Abstract
In this paper, the detection scheme of the voltage variation using a two difference voltage is proposed. The conventional sag detector is from a single-phase digital phase-locked loop (DPLL) that is based on a d-q transformation using an all-pass filter (APF). The APF generates a virtual q-axis voltage component with $90^{\circ}$ phase delay but the APF cannot generate the virtual q-axis voltage depending on the phase of the grid voltage. To overcome the problem, q-axis voltage component is generated from difference between the current and previous value of d-axis voltage component in the stationary reference frame. However, the difference voltage around the zero crossing is not enough to detect the voltage sag. Therefore, the new detection scheme using the two difference voltage which can detect the sag around the zero crossing voltage is proposed.
Keywords
All-Pass Filter(APF); Two Difference Voltage; Zero Crossing Voltage;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 R. Naidoo, P. Pilay, "A New Method of Voltage Sag and Swell Detection," IEEE Trans. on Power Delivery, Vol. 22, No. 2, pp. 1056-1063, Apr. 2007.   DOI   ScienceOn
2 N. Woodley, L. Morgan, A. Sundaram, "Experience with an inverter-based dynamic voltage restorer," IEEE Trans. on Power Delivery, Vol. 14, No. 3, pp.1181-1186, July. 1999.   DOI   ScienceOn
3 W. Lee, D. Lee, T. Lee, "New Control Scheme for a Unified Power Quality Compensator-Q with Minimum Active Power Injection," IEEE Trans. on Power Delivery, Vol. 25, No. 2, pp. 1068-1076, Apr. 2010.
4 J. G. Kim, Y. J. Park, I. J. Kim, "Characteristics Analysis of Power Capacitor at Sag & Swell", Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, Vol. 23, No. 10, pp. 21-28, Oct. 2009.   과학기술학회마을   DOI   ScienceOn
5 N. Tuaboylu, E. Collins, P. Chaney, "Voltage Disturbance Evaluation Using the Missing Voltage Technique", Harmonics and Quality of Power, Vol. 1, pp. 577-582, 1998.
6 M. Gonzalez, V.Cardenas, R. Alvarez, "A Fast Detection Algorithm for Sags, Swells, and Interruptions Based on Digital RMS Calculation and Kalman Filtering," in Proc. Int. Power Electronics Congress, pp. 1-6, Oct. 2006.
7 Z. Yao, L Xiao, "Seamless transfer of single-phase grid-interactive inverters between grid-connected and stand-alone modes," IEEE Trans. on Power Electronics, Vol. 25, No. 6, pp. 1597-1603, 2010.   DOI   ScienceOn
8 Y. Silla, Y. Kum, "An Improvement in Synchronously Rotating Reference Frame-Based Voltage Sag Detection under Distorted Grid Voltages," Journal of Power Electronics, Vol. 8, No. 6, pp. 1283-1295, 2013.   과학기술학회마을   DOI   ScienceOn
9 S. Lee, K. Sung, T. Lee, W. Lee "UPS/APF power conversion equipment with a seamless mode transfer," Energy Conversion Congress and Exposition (ECCE), pp. 2769-2776, May 2011.
10 Y. M. Seo, S. Y. Lee, S. C. Hong, "A Study on Boost Type Single-Phase Inverter System for Compensation of Voltage Sag", Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, Vol. 26, No. 12, pp. 62-67, Dec. 2012.