Abstract
The harmonic currents generated by electrical locomotives may induce the traction network resonance and harmonic current enlargement. Wave-trap high-pass-filter (HPF) can suppress the harmonic resonance and filter the high-frequency harmonic currents. This paper considers three positions for the wave-trap HPF, which installed in traction substation (TS), section post (SP) or middle of traction network (TN), its filtering performance is analyzed respectively. For the line mixed with AC-DC locomotives and AC-DC-AC locomotives, the active power filter (APF) is added in TS to filter low-order harmonic currents. The filtering performance is also analyzed while the wave-trap HPF is installed in three installation positions respectively. The result shows that the high-frequency harmonic resonance can be suppressed by the wave-trap HPF in any of three installation positions. More specifically, the THDU of TN bus is reduced from 13.87% to less than 7% with the wave-trap HPF. The best performance of the hybrid filter can reduce the THDU to 1.79%, when both the APF and the wave-trap HPF are installed in TS.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
