TY - JOUR
T1 - Common-mode Voltage Reduction in a Motor Drive System with a Power Factor Correction
AU - Adabi, J.
AU - Boora, A.A.
AU - Zare, F.
AU - Nami, A.
AU - Ghosh, A.
AU - Blaabjerg, Frede
PY - 2012
Y1 - 2012
N2 - Common-mode voltage generated by a power converter in combination with parasitic capacitive couplings is a potential source of shaft voltage in an AC motor drive system. In this study, a three-phase motor drive system supplied with a single-phase AC-DC diode rectifier is investigated in order to reduce shaft voltage in a three-phase AC motor drive system. In this topology, the AC-DC diode rectifier influences the common-mode voltage generated by the inverter because the placement of the neutral point is changing in different rectifier circuit states. A pulse width modulation technique is presented by a proper placement of the zero vectors to reduce the common-mode voltage level, which leads to a cost-effective shaft voltage reduction technique without load current distortion, while keeping the switching frequency constant. Analysis, simulations and experimental implementation have been presented to investigate the proposed method.
AB - Common-mode voltage generated by a power converter in combination with parasitic capacitive couplings is a potential source of shaft voltage in an AC motor drive system. In this study, a three-phase motor drive system supplied with a single-phase AC-DC diode rectifier is investigated in order to reduce shaft voltage in a three-phase AC motor drive system. In this topology, the AC-DC diode rectifier influences the common-mode voltage generated by the inverter because the placement of the neutral point is changing in different rectifier circuit states. A pulse width modulation technique is presented by a proper placement of the zero vectors to reduce the common-mode voltage level, which leads to a cost-effective shaft voltage reduction technique without load current distortion, while keeping the switching frequency constant. Analysis, simulations and experimental implementation have been presented to investigate the proposed method.
UR - http://www.scopus.com/inward/record.url?scp=84857925293&partnerID=8YFLogxK
U2 - 10.1049/iet-pel.2011.0189
DO - 10.1049/iet-pel.2011.0189
M3 - Journal article
SN - 1755-4535
VL - 5
SP - 366
EP - 375
JO - IET Power Electronics
JF - IET Power Electronics
IS - 3
ER -