start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=4
article-no=
start-page=1019
end-page=1026
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970106
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Measurement and reduction of EMI radiated by a PWM inverter-fed AC motor drive system
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=<p>This paper presents theoretical and experimental relationships between radiated electromagnetic noises and common-mode and normal-mode currents, paying attention to an induction motor drive system fed by a voltage-source pulsewidth modulation (PWM) inverter. A method of reducing both currents is proposed, based on an equivalent model, taking into account parasitic stray capacitors inside an induction motor. Electromagnetic interference (EMI) radiated by a 3.7-kW induction motor drive system is actually measured, complying with the VDE 0871 Class A [3 m]. Experimental results verify that the combination of the already proposed common-mode transformer (CMT) and the normal-mode filters (NMFs) being proposed in this paper is a practically viable and effective way to reduce EMI resulting from both common-mode and normal-mode currents</p>

en-copyright=
kn-copyright=

en-aut-name=OgasawaraSatoshi
en-aut-sei=Ogasawara
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=AyanoHideki
en-aut-sei=Ayano
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=AkagiHirofumi
en-aut-sei=Akagi
en-aut-mei=Hirofumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Okayama University

affil-num=2
en-affil=
kn-affil=Okayama University

affil-num=3
en-affil=
kn-affil=Okayama University
en-keyword=Common-mode transformer
kn-keyword=Common-mode transformer
en-keyword=  electromagnetic interference(EMI)
kn-keyword=  electromagnetic interference(EMI)
en-keyword=normal-mode filter
kn-keyword=normal-mode filter
END