EMI noise reduction with new active zero state PWM for integrated dynamic brake systems

Jae Hyuk Baik, Sang Won Yun, Dong Sik Kim, Chun Ki Kwon, Ji Yoon Yoo

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)923-930
Number of pages8
JournalJournal of Power Electronics
Issue number3
Publication statusPublished - 2018 May 1


  • Active zero state PWM (AZSPWM)
  • Common-mode current (CMC)
  • Common-mode voltage (CMV)
  • Electromagnetic interference (EMI)
  • Integrated dynamic brake (IDB)
  • Reduced common-mode voltage PWM (RCMV-PWM)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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