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http://dx.doi.org/10.5370/JEET.2015.10.6.2442

Advanced Railway Power Quality Detecting Algorithm Using a Combined TEO and STFT Method  

Yoo, Je-Ho (Dept. of Energy Grid, Sangmyung University)
Shin, Seung-Kwon (Metropolitan Transportation Research Center, Korea Railroad Research Institute)
Park, Jong-young (Metropolitan Transportation Research Center, Korea Railroad Research Institute)
Cho, Soo-Hwan (Dept. of Energy Grid, Sangmyung University)
Publication Information
Journal of Electrical Engineering and Technology / v.10, no.6, 2015 , pp. 2442-2447 More about this Journal
Abstract
Because an electric railway vehicle is a large scale moving load, it can cause various kinds of power quality problems in the railroad power system. The power quality impacts are considered as the strong instantaneous stresses to the related power systems and can cause an accelerating aging and a malfunction of the power supplying components. Therefore, it is necessary to detect the small and intermittent symptoms mixed in the voltage waveform. However, they cannot be detected by the triggering functions of the existing power analyzers installed in the railway systems. This paper will examine the drawback of some fast detection tools and propose an advanced detecting and analyzing method based on a combined TEO and STFT algorithm.
Keywords
Railway system; Power Quality(PQ); Detection; Teager Energy Operator(TEO); Short-Time Fourier Transform(STFT);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 S.H. Cho, J. Hur and I.Y. Chung, “An Applicability of Teager Energy operator and Energy Separation Algorithm for Waveform Distortion Analysis: Harmonics, Inter-harmonics and Frequency Variation,” The Journal of Electrical Engineering & Technology, vol. 9, no. 4, pp. 1210-1214, 2014.   DOI
2 H. M. Lee, G. D. Kim, S. C. Oh and C. M. Lee, “Optimal Design for Power Quality of Electric Railway,” Energy Conversion and Management, vol. 52, Iss. 4, pp. 1959-1967, 2011.   DOI
3 K.C. Kim, S.E. Jin, J.H. Lee and Y.S. Jeon, “Time-varying Harmonics Measurement and Evaluation of the High Speed Electric Train Loads,” Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, vol. 20, no. 7, pp. 29-37, 2006.   DOI
4 A. Bubasi, A.S. Yilmaz and K. Tufan, “Detection of Generated and Measured Transient Power Quality Events Using Teager Energy Operator,” Energy Conversion and Management, vol. 52, Iss. 4, pp. 1959-1967, 2011.   DOI
5 M.A. Eldery, E.F. El-Saadany and M.M.A. Salama, “A Simple Energy Operator Computational Method for Voltage Flicker Assessment,” IEEE Transactions on Power Delivery, vol. 21, no. 3, pp. 1743-1750, 2006.   DOI
6 T. K. Abdel-Galil, E. F. El-Saadany and M. M. A. Salama, “Online Tracking of Voltage Flicker Utilizing Energy Operator and Hilbert Transform,” IEEE Transactions on Power Delivery, vol. 19, no. 2, pp. 861-867, 2006.
7 S.H. Cho, J.U. Kim and J.H. Han, “Determination of Power-Quality Disturbances Using Teager Energy Operator and Kalman Filter Algorithms,” International Journal of Fuzzy Logic and Intelligent Systems, vol. 11, no. 2, pp. 1959-1967, 2011.