Modified Sequential Linear Power Flow Method for High-Speed Railway Power Supply System


Characterization of High-speed Railway power supply system requires a power or power flow algorithm as a basic tool to determine bus voltages, line currents or power flows through feeder lines. The execution of the algorithm needs efficient search. Sequential Linear Power Flow Method is a efficient tool to solve power flow for AC Railway system. This paper describes a modified Sequential Linear Power Flow Method that uses the initial current distribution of each AT to instead of the initial value of voltage in SLPFM. The computing results of a 8-trains case indicate the algorithm can speed up convergence and reduce the number of iterations, thus that can saved computing time. Therefore, the method is more conducive to real-time flow calculation of the railway traction power supply system.

  • Abstract
  • Key Words
  • 1 Introduction
  • 2. At Current Estimate of in at Power Supply
  • 3 Modified Sequential Linear Power Flow Method
  • 4. Example Calculation
  • 5. Summaries
  • 6. Acknowledges
  • References

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