A Direct Torque Control Scheme With Integrated Commutation Torque Ripple Reduction for BLDC Motor Drives With Open-End Windings
This article presents a direct torque control (DTC) scheme with an integrated switching strategy to reduce commutation torque ripple in a dual inverter-fed three-phase BLDC motor with open-end stator windings. The proposed scheme covers both low- and high-speed operation, utilizing voltage space vec...
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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 Open Journal of Power Electronics |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10902603/ |
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| Summary: | This article presents a direct torque control (DTC) scheme with an integrated switching strategy to reduce commutation torque ripple in a dual inverter-fed three-phase BLDC motor with open-end stator windings. The proposed scheme covers both low- and high-speed operation, utilizing voltage space vector structures in two-phase and three-phase conduction modes. Analysis shows that utilizing three-phase conducting voltage vectors during the commutation interval significantly reduces torque ripple compared to the DTC scheme using only two-phase conducting voltage space vectors. The two-phase conducting voltage vectors however maximize electromagnetic torque during the non-commutation period. The proposed scheme results in unipolar switching that minimizes dv/dt leading to further reduction in torque ripple. Experimental validation on a laboratory prototype using a TMS320F28377S controller confirms the effectiveness of the proposed method. |
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| ISSN: | 2644-1314 |