{"title":"A Torque Ripple Reduction Method of Small Inductance Brushless DC Motor Based on Three-level DC Converter","authors":"Yue Liu, Jianhui Hu, Shili Dong","doi":"10.1109/ICIEA.2019.8834385","DOIUrl":null,"url":null,"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.","PeriodicalId":311302,"journal":{"name":"2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIEA.2019.8834385","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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.
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