A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation Region
For the asymmetric six-phase motor fed by a two-level six-phase voltage source inverter (VSI), when the modulation index is less than 0.5774, the motor operates in the linear region, and the harmonics in the Z<sub>1</sub> − Z<sub>2</sub> subspace can be suppressed to zero. Wh...
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MDPI AG
2022-10-01
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| Online Access: | https://www.mdpi.com/1996-1073/15/20/7589 |
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| author | Li Zhao Shoudao Huang Jian Zheng Yuan Gao |
| author_facet | Li Zhao Shoudao Huang Jian Zheng Yuan Gao |
| author_sort | Li Zhao |
| collection | DOAJ |
| description | For the asymmetric six-phase motor fed by a two-level six-phase voltage source inverter (VSI), when the modulation index is less than 0.5774, the motor operates in the linear region, and the harmonics in the Z<sub>1</sub> − Z<sub>2</sub> subspace can be suppressed to zero. When the modulation index is beyond 0.5774 and less than 0.6221, the motor operates in overmodulation regions, and the harmonics in the Z<sub>1</sub> − Z<sub>2</sub> subspace cannot be suppressed to zero. To minimize the harmonics in the Z<sub>1</sub> − Z<sub>2</sub> subspace for these regions, a harmonic suppression strategy, namely, harmonic suppression overmodulation strategy (HSOS), is proposed in this paper. The lower-order harmonics of the Z<sub>1</sub> − Z<sub>2</sub> subspace, namely, the 5th, 7th, 17th and 19th, are considered. Compared with the traditional four-vector overmodulation strategy (TFOS), the content of the 5th harmonic is reduced by about 20%, and the total harmonic distortion (<i>THD</i><sub><i>Z</i><sub>1</sub><i>Z</i><sub>2</sub></sub>) of these four kinds of harmonics is reduced by about 21% in the proposed HSOS. Finally, the simulation and experiment are carried out to verify the effectiveness of the proposed strategy. |
| first_indexed | 2024-03-09T20:17:06Z |
| format | Article |
| id | doaj.art-0d725f06969b4468ba4bd066a8a863d1 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T20:17:06Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0d725f06969b4468ba4bd066a8a863d12023-11-23T23:57:22ZengMDPI AGEnergies1996-10732022-10-011520758910.3390/en15207589A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation RegionLi Zhao0Shoudao Huang1Jian Zheng2Yuan Gao3College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaCollege of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaCollege of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaFaculty of Engineering, University of Bristol, Queens Road, Bristol BS8 1QU, UKFor the asymmetric six-phase motor fed by a two-level six-phase voltage source inverter (VSI), when the modulation index is less than 0.5774, the motor operates in the linear region, and the harmonics in the Z<sub>1</sub> − Z<sub>2</sub> subspace can be suppressed to zero. When the modulation index is beyond 0.5774 and less than 0.6221, the motor operates in overmodulation regions, and the harmonics in the Z<sub>1</sub> − Z<sub>2</sub> subspace cannot be suppressed to zero. To minimize the harmonics in the Z<sub>1</sub> − Z<sub>2</sub> subspace for these regions, a harmonic suppression strategy, namely, harmonic suppression overmodulation strategy (HSOS), is proposed in this paper. The lower-order harmonics of the Z<sub>1</sub> − Z<sub>2</sub> subspace, namely, the 5th, 7th, 17th and 19th, are considered. Compared with the traditional four-vector overmodulation strategy (TFOS), the content of the 5th harmonic is reduced by about 20%, and the total harmonic distortion (<i>THD</i><sub><i>Z</i><sub>1</sub><i>Z</i><sub>2</sub></sub>) of these four kinds of harmonics is reduced by about 21% in the proposed HSOS. Finally, the simulation and experiment are carried out to verify the effectiveness of the proposed strategy.https://www.mdpi.com/1996-1073/15/20/7589asymmetric six-phase motorspace vector pulse width modulation (SVPWM)total harmonic distortion (THD)two-level six-phase voltage source inverter (VSI)overmodulation |
| spellingShingle | Li Zhao Shoudao Huang Jian Zheng Yuan Gao A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation Region Energies asymmetric six-phase motor space vector pulse width modulation (SVPWM) total harmonic distortion (THD) two-level six-phase voltage source inverter (VSI) overmodulation |
| title | A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation Region |
| title_full | A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation Region |
| title_fullStr | A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation Region |
| title_full_unstemmed | A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation Region |
| title_short | A Harmonic Suppression SVPWM Strategy for the Asymmetric Six-Phase Motor Fed by Two-Level Six-Phase VSI Operating in the Overmodulation Region |
| title_sort | harmonic suppression svpwm strategy for the asymmetric six phase motor fed by two level six phase vsi operating in the overmodulation region |
| topic | asymmetric six-phase motor space vector pulse width modulation (SVPWM) total harmonic distortion (THD) two-level six-phase voltage source inverter (VSI) overmodulation |
| url | https://www.mdpi.com/1996-1073/15/20/7589 |
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