Filter design for harmonic reduction in high-voltage booster for railway applications

Loris Zanotto, Roberto Piovan, Vanni Toigo, Elena Gaio, P. Bordignon, Tito Consani, M. Fracchia

Research output: Contribution to journalArticle

18 Citations (Scopus)


This paper presents the design of the power section of a 25-kV, 50-Hz, 10-MVAr single-phase static var compensator (SVC) for railway applications. It is based on a third harmonic filter, on a low-pass filter for harmonic reduction, and on a saturable reactor connected in series with the thyristor-controlled reactor. Harmonic filtering is the crucial aspect of the system because of the very stringent limitations imposed on the harmonic current generation due to railway signaling requirements. The effectiveness of this innovative solution in reducing the grid harmonic current injection is shown in the paper and the advantage, in terms of system efficiency, is underlined. The system was successfully constructed and installed at the end of 2002, and the commissioning will be completed during 2003. © 2005 IEEE.
Original languageEnglish
Pages (from-to)258 - 263
Number of pages6
JournalIEEE Transactions on Power Delivery
Issue number1
Publication statusPublished - Jan 2005
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Zanotto, L., Piovan, R., Toigo, V., Gaio, E., Bordignon, P., Consani, T., & Fracchia, M. (2005). Filter design for harmonic reduction in high-voltage booster for railway applications. IEEE Transactions on Power Delivery, 20(1), 258 - 263.