Remote-state PWM with minimum rms torque ripple and reduced common-mode voltage for three-phase VSI-fed blac motor drives

Jaehyuk Baik, Sangwon Yun, Dongsik Kim, Chunki Kwon, Jiyoon Yoo

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A minimum root mean square (RMS) torque ripple-remote-state pulse-width modulation (MTR-RSPWM) technique is proposed for minimizing the RMS torque ripple under reduced common-mode voltage (CMV) condition of three-phase voltage source inverters (VSI)-fed brushless alternating current (BLAC) motor drives. The q-axis current ripple due to an error voltage vector generated between the reference voltage vector and applied voltage vector is analyzed for all pulse patterns with reduced CMV of the RSPWM. From the analysis result, in the MTR-RSPWM, a sector is divided into five zones, and within each zone, pulse patterns with the lowest RMS torque ripple and reduced CMV are employed. To verify the validity of the MTR-RSPWM, theorical analysis, simulation, and experiments are performed, where the MTR-RSPWM is thoroughly compared with RSPWM3 that generates the minimum RMS current ripple. From the analytical, simulation, and experimental results, it is shown that the MTR-RSPWM significantly reduces the RMS torque ripple under a reduced CMV condition at the expense of an increase in the RMS current ripple, compared to the RSPWM3.

Original languageEnglish
Article number586
JournalElectronics (Switzerland)
Issue number4
Publication statusPublished - 2020 Apr

Bibliographical note

Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.


  • Common-mode voltage (CMV)
  • Reduced common-mode voltage PWM (RCMV-PWM)
  • Remote-state PWM (RSPWM)
  • Torque ripple
  • Voltage source inverter (VSI)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Hardware and Architecture
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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