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송명곤(Song MK),오윤상(Oh YS),김동훈(Kim DH),주민석(Joo MS),노석균(Rho SK),이상진(Lee SJ),박정도(Park JD),정상기(Chung SG),정락교(Jeong RG),조홍식(Cho HS) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper presents the magnetic fields shielding properties of the light rail transit which are produced by the ripple-shaped currents in the power lines. To analyze these properties, the equivalent circuit model of the DC power supply system at the light rail transit system was induced by MATLAB-SIMULINK, and with the calculated results of the ripple-shaped currents, the magnetic fields shielding properties of the light rail transit were analyzed. The results are as follows. First The frequency of the ripple-shaped currents is 200[㎐] and its magnitude is 1.5[A] Second the magnetic fields produced by the ripple-shaped currents of the DC power supply systems are well shielded by the aluminum made body of the light rail transit.