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A torque ripple reduction method of small inductance brushless DC motor based on three-level dc converter

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In order to make small inductance brushless DC motor drive circuit achieve better drive performance, DC-DC converter is chosen to be added in front of the three-phase inverter to reduce the torque ripple. This paper proposes a novel circuit topology adding three-level DC converter in front of the three-phase inverter. The former three-level DC converter is used for speed control and the three-phase inverter circuit is only used for commutation. The simulation model of brushless DC motor based on three-level DC converter is built. To be suitable for DC brushless motor drive circuit and achieve better drive performance three-level DC converter uses the common ground structure and the voltage-sharing control is adopted. Finally the simulation results show that three-level DC converter is suitable to be used in the small inductance brushless DC motor drive circuit and drive circuit with three-level DC converter shows better drive performance than with buck converter.

Original languageEnglish
Title of host publicationProceedings of the 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1669-1674
Number of pages6
ISBN (Electronic)9781538694909
DOIs
StatePublished - Jun 2019
Event14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019 - Xi'an, China
Duration: 19 Jun 201921 Jun 2019

Publication series

NameProceedings of the 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019

Conference

Conference14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
Country/TerritoryChina
CityXi'an
Period19/06/1921/06/19

Keywords

  • Brushless DC motor
  • Small inductance
  • Three-level

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