A Novel Finite-Control-Set Model Predictive Torque Control for Five-Phase PMSM With Improved Harmonic Current Suppression
There is the third harmonic current in five-phase permanent magnet synchronous motors (PMSMs), thus causing the distortion of stator currents and additional copper loss. Although the existing finite-control-set with virtual voltage vectors (FCS-V3s) can eliminate the harmonic voltage of harmonic sub...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10849603/ |
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| Summary: | There is the third harmonic current in five-phase permanent magnet synchronous motors (PMSMs), thus causing the distortion of stator currents and additional copper loss. Although the existing finite-control-set with virtual voltage vectors (FCS-V3s) can eliminate the harmonic voltage of harmonic subspace, it completely loses the ability to control the harmonic subspace. Moreover, the DC-link utilization is reduced due to the usage of V3s. To address these problems, a novel FCS model predictive torque control (FCS-MPTC) was proposed to be an alternative to the existing FCS-MPTC in this paper. First, a novel FCS was designed to achieve the double closed-loop control for both subspaces. Then, all the specific duty ratios were calculated and further limited to the normal range from the geometric point of view. Moreover, a wider amplitude range of available voltages was obtained in the novel FCS. Consequently, compared with the existing virtual-VVs-based FCS-MPTC (FCS-V3s-MPTC), the proposed method can effectively suppress the third harmonic current generated by the motor itself, improve the DC-link utilization while achieving the good steady-state and dynamic response performance. Finally, experimental results were presented to validate the effectiveness of proposed method. |
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| ISSN: | 2169-3536 |