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Common mode voltage in a motor drive system with PFC

Zare, Firuz, Adabi Firouzjaee, Jafar, Nami, Alireza, & Ghosh, Arindam (2010) Common mode voltage in a motor drive system with PFC. In Proceedings of The 14th International Power Electronics and Motion Control Conference, Metropol Lake Resort, Ohrid, Republic of Macedonia.

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Abstract

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 paper, 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 common mode voltage generated by the inverter is influenced by the AC-DC diode rectifier 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 and simulations have been presented to investigate the proposed method.

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ID Code: 40524
Item Type: Conference Paper
Keywords: Common Mode Voltage, Shaft Voltage, Diode Rectifier, Adjustable Speed Drive, Space Vector Modulation
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Industrial Electronics (090603)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Deposited On: 09 Mar 2011 11:05
Last Modified: 01 Mar 2012 00:28

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