Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque Ripple
The torque ripple of a switched reluctance motor (SRM) limits its application in electric vehicles. This paper proposes a DITC system for SRMs based on a novel multilevel converter (MLC), which aims at the problem that the torque ripple cannot be effectively suppressed for the conventional direct in...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | World Electric Vehicle Journal |
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| Online Access: | https://www.mdpi.com/2032-6653/14/6/140 |
| _version_ | 1797592324413325312 |
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| author | Yan Cai Zhongshan Dong Hui Liu Yunhu Liu Yuhang Wu |
| author_facet | Yan Cai Zhongshan Dong Hui Liu Yunhu Liu Yuhang Wu |
| author_sort | Yan Cai |
| collection | DOAJ |
| description | The torque ripple of a switched reluctance motor (SRM) limits its application in electric vehicles. This paper proposes a DITC system for SRMs based on a novel multilevel converter (MLC), which aims at the problem that the torque ripple cannot be effectively suppressed for the conventional direct instantaneous torque control (DITC) of an SRM due to the limitation of the DC bus voltage in the asymmetric half-bridge converter (AHBC) and the single control strategy formulated in the commutation region. Based on the advantages of fast excitation and fast demagnetization for the proposed MLC and the torque distribution characteristics for each phase winding in the commutation region, a novel torque hysteresis control strategy is developed to improve the torque-following ability of the DITC and achieve the purpose of minimizing the torque ripple in the commutation region. In addition, multiobjective optimization control of the motor is carried out to improve the efficiency of the DITC system while suppressing the torque ripple. The effectiveness of the proposed SRM drive scheme is verified by experiment, which is of great significance for the application of SRMs in electric vehicles. |
| first_indexed | 2024-03-11T01:49:31Z |
| format | Article |
| id | doaj.art-de06e268864642ae88eb746476085f80 |
| institution | Directory Open Access Journal |
| issn | 2032-6653 |
| language | English |
| last_indexed | 2024-03-11T01:49:31Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | World Electric Vehicle Journal |
| spelling | doaj.art-de06e268864642ae88eb746476085f802023-11-18T13:06:21ZengMDPI AGWorld Electric Vehicle Journal2032-66532023-05-0114614010.3390/wevj14060140Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque RippleYan Cai0Zhongshan Dong1Hui Liu2Yunhu Liu3Yuhang Wu4Tianjin Key Laboratory of Intelligent Control of Electrical Equipment, Tiangong University, Tianjin 300387, ChinaSchool of Electrical Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Electrical Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Electrical Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Electrical Engineering, Tiangong University, Tianjin 300387, ChinaThe torque ripple of a switched reluctance motor (SRM) limits its application in electric vehicles. This paper proposes a DITC system for SRMs based on a novel multilevel converter (MLC), which aims at the problem that the torque ripple cannot be effectively suppressed for the conventional direct instantaneous torque control (DITC) of an SRM due to the limitation of the DC bus voltage in the asymmetric half-bridge converter (AHBC) and the single control strategy formulated in the commutation region. Based on the advantages of fast excitation and fast demagnetization for the proposed MLC and the torque distribution characteristics for each phase winding in the commutation region, a novel torque hysteresis control strategy is developed to improve the torque-following ability of the DITC and achieve the purpose of minimizing the torque ripple in the commutation region. In addition, multiobjective optimization control of the motor is carried out to improve the efficiency of the DITC system while suppressing the torque ripple. The effectiveness of the proposed SRM drive scheme is verified by experiment, which is of great significance for the application of SRMs in electric vehicles.https://www.mdpi.com/2032-6653/14/6/140switched reluctance motordirect instantaneous torque controlmultilevel convertertorque ripplemultiobjective optimization |
| spellingShingle | Yan Cai Zhongshan Dong Hui Liu Yunhu Liu Yuhang Wu Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque Ripple World Electric Vehicle Journal switched reluctance motor direct instantaneous torque control multilevel converter torque ripple multiobjective optimization |
| title | Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque Ripple |
| title_full | Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque Ripple |
| title_fullStr | Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque Ripple |
| title_full_unstemmed | Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque Ripple |
| title_short | Direct Instantaneous Torque Control of SRM Based on a Novel Multilevel Converter for Low Torque Ripple |
| title_sort | direct instantaneous torque control of srm based on a novel multilevel converter for low torque ripple |
| topic | switched reluctance motor direct instantaneous torque control multilevel converter torque ripple multiobjective optimization |
| url | https://www.mdpi.com/2032-6653/14/6/140 |
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