DOI QR코드

DOI QR Code

Approximate Model for Peak Demand Power Computation in Metro Railway with DC Rectifiers

DC정류기를 갖는 도시철도의 최대수요전력 산출 근사모델

  • Kim, Han-Su (Department of Electrical Engineering, INHA University) ;
  • Kwon, Oh-Kyu (Department of Electrical Engineering, INHA University)
  • Received : 2013.05.09
  • Accepted : 2013.08.05
  • Published : 2013.10.31

Abstract

This paper presents an approximate model for computing the peak demand power in a metro railway system. The peak demand of substations can be calculated using the current vector iteration method. But the existing method requires many repeated calculations to determine the peak demand power, which makes it difficult to apply to the real-time peak power control problem. In this paper, we assume that none of the conditions vary except source impedance and make an approximate model for rapid calculation based on changes in the impedance of the power substation. The proposed model result is approximately the same as the existing model, which is demonstrated through simulation.

Acknowledgement

Supported by : 인하대학교

References

  1. T. Albrecht (2004) Reducing power peaks and energy consumption in rail transit systems by simultaneous train running time control, Computers in Railways IX, WIT Press, Germany, pp. 885-894
  2. K.M. Kim, S.-M. Oh (2009) A Model and Approaches for Smoothing Peaks of Traction Energy in Timetabling, Journal of the Korean Society for Railway, No. 6, pp. 1018-1023.
  3. J.F. Chen, R.L. Lin, Y.C. Liu (2005) Optimization of an mrt train schedule: Reducing maximum traction power by using genetic algorithms. Power Systems, IEEE Transactions, vol. 20(3), pp. 1366-1372. https://doi.org/10.1109/TPWRS.2005.851939
  4. H.M. Lee, G.D. Kim, C.M. Lee (2008) Development of ESS for Regenerative Energy of Electric Vehicle, WCRR, pp. 476-478.
  5. M. Steiner, M. Klohr, S. Pagiela (2007) Energy storage system with ultracaps on board of railway vehicles. In Power Electronics and Applications, 2007 European Conference IEEE, pp. 1-10.
  6. Y. Cai, M.R. Irving, S.H. Case (1995) Iterative techniques for the solution of complex DC-rail-traction systems including regenerative braking. IEE Proceedings-Generation, Transmission and Distribution, 142(5), pp. 445-452.
  7. Construction Division of Incheon Subway (2006) Power simulation about Implementation design on Songdo International City, Incheon City Rail Line 1 extension project.
  8. S.K. Jung (2003) Simulation Development of the DC Traction Power Supply including Regenerative Trains, PhD Thesis, Myongji University.

Cited by

  1. Peak Power Optimization for Metro Railway using by Source Impedance Control vol.63, pp.6, 2014, https://doi.org/10.5370/KIEE.2014.63.6.841