Investigation of common-mode voltages of PWM inverter with a small capacity auxiliary inverter

This paper presents a dual-bridge inverter approach to eliminate the motor common-mode voltage. This inverter which consists of two inverters to be connected in parallel does not generate the common-mode voltage, and can drive standard three-phase three-wire induction motors. Additionally, because o...

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Bibliographic Details
Main Authors: Kikuchi, M., Aizawa, N., Kubota, H., Miki, I., Matsuse, K.
Format: Conference Proceeding
Language:English
Subjects:
Active filters
Common-mode voltage elimination
Dual-bridge inverter
Electormagnetic Interference (EMI)
Equations
Inductance
Induction generators
Induction motors
Leakage current
Paper technology
Pulse inverters
Pulse width modulation inverters
Pulse-Width Modulation (PWM)
Voltage
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Summary:This paper presents a dual-bridge inverter approach to eliminate the motor common-mode voltage. This inverter which consists of two inverters to be connected in parallel does not generate the common-mode voltage, and can drive standard three-phase three-wire induction motors. Additionally, because one inverter does not output active power, the capacity of the inverter is very small. The effectiveness of the proposed method is verified experimentally.
DOI:10.1109/ICEMS.2009.5382850