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EMI Noise Reduction with New Active Zero State PWM for Integrated Dynamic Brake Systems

Authors
Baik, Jae-HyukYun, Sang-WonKim, Dong-SikKwon, Chun-KiYoo, Ji-Yoon
Issue Date
5월-2018
Publisher
KOREAN INST POWER ELECTRONICS
Keywords
Active zero state PWM (AZSPWM); Common-mode current (CMC); Common-mode voltage (CMV); Electro-magnetic interference (EMI); Integrated dynamic brake (IDB); Reduced common-mode voltage PWM (RCMV-PWM)
Citation
JOURNAL OF POWER ELECTRONICS, v.18, no.3, pp.923 - 930
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF POWER ELECTRONICS
Volume
18
Number
3
Start Page
923
End Page
930
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/75628
DOI
10.6113/JPE.2018.18.3.923
ISSN
1598-2092
Abstract
Based on the application of an integrated dynamic brake (IDB) system that uses a PWM inverter fed-AC motor drive to operate the piston, a new active zero state PWM (AZSPWM) is proposed to improve the stability and reliability of the IDB system by suppressing the conducted electro-magnetic interference (EMI) noise under a wide range of load torque. The new AZSPWM reduces common-mode voltage (CMV) by one-third when compared to that of the conventional space vector PWM (CSVPWM). Although this method slightly increases the output current ripple by reducing the CMV, like the CSVPWM, it can be used within the full range of the load torque. Further, unlike other reduced common-mode voltage (RCMV) PWMs, it does not increase the switching power loss. A theoretical analysis is presented and experiments are performed to demonstrate the effectiveness of this method.
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