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http://dx.doi.org/10.13067/JKIECS.2016.11.10.963

The study on Reduction of Demand Power in Urban Railway using OLTC  

Kim, Han-Soo (Incheon Transit Corporation)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.11, no.10, 2016 , pp. 963-968 More about this Journal
Abstract
This paper proposes a new method reducing the maximum demand power of substations at urban railway by using transformer with OLTC(:On Load Tap Changer). Most of the domestic urban railway is rectified by a diode scheme, and supplies the electric vehicles in dc 1500[v]. Because the substations are connected in parallel, if an input voltage of a substation is increased, then the voltage of rectifiers is also increased, and which leads to an increase in the maximum demand of the substation. Simulation results show that increment of maximum demand power can significantly be limited using the method proposed in this paper.
Keywords
Railway; Maximum Demand; Oltc; Rectifier;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 S. Ge and T. Chung, "Optimal active power flow incorporating power flow control needs in flexible AC transmission systems," IEEE Trans. Power Systems, vol. 14, no 2, 1999, pp. 738-744.   DOI
2 K. Muttaqi, A. Le, M. Negnevitsky, and G. Ledwich, "A coordinated voltage control approach for coordination of OLTC, voltage regulator, and DG to regulate voltage in a distribution feeder," IEEE Trans. Industry Applications, vol. 51, no. 2, 2015, pp. 1239-1248.   DOI
3 Y. Cai, M. Irving, and S. Case, "Iterative techniques for the solution of complex DC-rail-traction systems including regenerative braking," IEE Proc. Generation, Transmission and Distribution, vol. 142, no. 5, 1995, pp. 445-452.   DOI
4 J. Choi and H. Yun, "A Comparative Analysis on the Operating System of Urban Railway & Conventional.High speed Railway," J. of the Korea Institute of Electronic Communication Sciences, vol. 10, no. 8, 2015, pp. 953-958.   DOI
5 M. Steiner, M. Klohr, and S. Pagiela, "Energy storage system with ultracaps on board of railway vehicles" Conf. of the Power Electronics and Applications on IEEE, Aalborg, Denmark, Sept., 2007.
6 Y. Ko, "A Study on the Superconductivity Energy Storage Basic Technology," J. of the Korea Institute of Electronic Communication Sciences, vol. 10, no. 6, 2015, pp. 691-698.   DOI
7 Y. Ko, "A Study on the Application Cases Analysis of ESS(Energy Storage System) to Electric Power System," J. of the Korea Institute of Electronic Communication Sciences, vol. 11, no. 1, 2016, pp. 53-58.   DOI
8 H. Kim and O. Kwon, "Peak Power Optimization for Metro Railway using by Source Impedance Control," Trans. of the Korean Institute of Electrical Engineers, vol. 63, no. 6, 2014, pp. 841-849.   DOI
9 C. Hn, "A Study on Effects of Energy Saving by Applying Energy Storage System," J. of the Korean Society for Railway, vol. 12, no. 4, 2009, pp. 582-589.
10 K. Kim and S. Oh, "A model and approaches for smoothing peaks of traction energy in time tabling," J. of the Korean Society for Railway, vol. 12, no. 6, 2009, pp. 1018-1023.