With the rapid development of the production economy, electrified EMU trains have become the main means of transportation for people to travel. But the ensuing power quality problem has also become one of the main concerns in the railway field today. When the electric locomotive is running, the harmonic currents in the traction current may cause interference to the railway signaling equipment (track circuits) along the line. Therefore, in this paper, we first simulate and analyze the traction current of the locomotive, and then take the useful signal 2600Hz~2630Hz, the harmonic signal 2550Hz, and 2650Hz as an example, and design a FIR band-pass filter based on genetic annealing algorithm. Compared with the traditional digital filter, it can be intuitively observed that the optimized filter filters out harmonic interference efficiently.
Simulation analysis of higher harmonics of traction current and research on suppression scheme
Fifth International Conference on Signal Processing and Computer Science (SPCS 2024) ; 2024 ; Kaifeng, China
Proc. SPIE ; 13442
03.01.2025
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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