Electromagnetic Field Tests of a 1-MW Wireless Power Transfer System for Light Rail Transit

Energies

Donguk Jang¹  JaeHee Kim²  MyungYong Kim³  Changmu Lee³  Byung-Song Lee³  Gunbok Lee³ 

[1] Advanced Railroad Technology Planning Department, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea;School of Electrical, Electronics and Communication Engineering, Korea University of Technology and Education (KOREATECH), Cheonan 31253, Korea;Smart Electrical & Signaling Division, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea;

关键词: wireless power transfer;    light rail;    electromagnetic field;    electromagnetic interference;    radiated emission;   

DOI  :  10.3390/en14041171

来源: DOAJ

【 摘 要 】

The high-power wireless power transfer (WPT) system in railways does not require physical contact to transfer electrical power, is electrically safe, and reduces maintenance costs from wear and tear. However, a high-power system generates a strong magnetic field that can result in problems of electromagnetic field (EMF) exposure and electromagnetic interference (EMI). In this study, EMF and EMI were measured at various positions under in-motion environment conditions for a 1-MW WPT light rail transit system. The measured maximum EMF was 2.41 μT, which is lower than the international guideline of 6.25 μT for the various locations with a potential presence of passengers. The measured EMI also satisfied international standards in the frequency range of 150 kHz–1 GHz.

【 授权许可】

Unknown