Suppressing common-mode conducted EMI generated by PWM drive systems using a dual-bridge inverter

Author

Zhang, Haoran ; Von Jouanne, Annette

Author_Institution

Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA

Volume

2

fYear

1998

fDate

15-19 Feb 1998

Firstpage

1017

Abstract

This paper presents a dual-bridge inverter approach to reducing the conducted electromagnetic interference (EMI) generated by pulse-width modulated (PWM) inverters in adjustable speed drive (ASD) motor systems. The novel dual-bridge inverter (DBI) is controlled to generate balanced excitation of induction motors under PWM ASD operation. Thus, the inherently generated common-mode voltage is eliminated and the resulting common-mode conducted EMI is significantly reduced. Theoretical analysis and experimental results are presented to verify this concept

Keywords

PWM invertors; bridge circuits; electromagnetic interference; induction motor drives; PWM drive systems; PWM inverters; balanced excitation; common-mode conducted EMI generation; common-mode conducted EMI suppression; dual-bridge inverter; electromagnetic interference; induction motors; pulse-width modulated inverters; EMP radiation effects; Electromagnetic interference; Induction generators; Induction motors; Pulse generation; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Variable speed drives; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual

Conference_Location

Anaheim, CA

Print_ISBN

0-7803-4340-9

Type

conf

DOI

10.1109/APEC.1998.654022

Filename

654022