A theoretical analysis of sideband harmonics on the inverter DC-link current for an electric railcar

Tomoyuki Ogawa; Shinji Wakao; Jat Taufiq; Keiichiro Kondo; Nobuo Terauchi

doi:10.1541/ieejias.126.1049

A theoretical analysis of sideband harmonics on the inverter DC-link current for an electric railcar

Tomoyuki Ogawa, Shinji Wakao, Jat Taufiq, Keiichiro Kondo, Nobuo Terauchi

Research output: Contribution to journal › Article

6 Citations (Scopus)

Abstract

The harmonics of the return current may interfere with the signaling current along with the rails. In this paper, we present the theoretical studies of the return current harmonics in the inverter-controlled DC electric railcar, aiming at contributing future work to improve the compatibility with the signaling current. We theoretically derive sideband harmonics of the DC-link current. Then, in order to verify the theoretical study, we experimentally measure the harmonics and numerically simulate the harmonics. As a result, we concluded the theoretical DC-link current is enough accurate to be utilized for the future improvement of the inverter harmonics current.

Original language	English
Pages (from-to)	1049-1057
Number of pages	9
Journal	IEEJ Transactions on Industry Applications
Volume	126
Issue number	7
DOIs	https://doi.org/10.1541/ieejias.126.1049
Publication status	Published - 2006

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Keywords

DC electric railcar
DC-link current
Inverter
Sideband harmonics
Switching function

ASJC Scopus subject areas

Electrical and Electronic Engineering
Industrial and Manufacturing Engineering

Cite this

Ogawa, T., Wakao, S., Taufiq, J., Kondo, K., & Terauchi, N. (2006). A theoretical analysis of sideband harmonics on the inverter DC-link current for an electric railcar. IEEJ Transactions on Industry Applications, 126(7), 1049-1057. https://doi.org/10.1541/ieejias.126.1049

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AB - The harmonics of the return current may interfere with the signaling current along with the rails. In this paper, we present the theoretical studies of the return current harmonics in the inverter-controlled DC electric railcar, aiming at contributing future work to improve the compatibility with the signaling current. We theoretically derive sideband harmonics of the DC-link current. Then, in order to verify the theoretical study, we experimentally measure the harmonics and numerically simulate the harmonics. As a result, we concluded the theoretical DC-link current is enough accurate to be utilized for the future improvement of the inverter harmonics current.

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KW - Sideband harmonics

KW - Switching function

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10.1541/ieejias.126.1049