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An Improved Model Predictive Torque Control for a Two-Level Inverter Fed Interior Permanent Magnet Synchronous Motor

1
School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin 300387, China
2
School of Artificial Intelligence, Tianjin Polytechnic University, Tianjin 300387, China
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(7), 769; https://doi.org/10.3390/electronics8070769
Received: 21 June 2019 / Revised: 5 July 2019 / Accepted: 8 July 2019 / Published: 10 July 2019
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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PDF [7731 KB, uploaded 10 July 2019]
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Abstract

In conventional model predictive control, the dimensions of the control variables are different from each other, which makes adjusting the weighted factors in the cost function complicated. This issue can be solved by adopting the model predictive flux control. However, the performance of the electromagnetic torque is affected by the change of the cost function. A novel model predictive torque control of the interior permanent magnet synchronous motor is presented in this paper, and the cost function involving the excitation torque and reluctance torque is established. Combined with the model predictive flux control and discrete space vector modulation, the current ripple and torque ripple are reduced. The performance of torque under an overload condition is superior to model predictive flux control. The effectiveness of the proposed algorithm is verified by the simulation and experimental results. View Full-Text
Keywords: weighted factor; model predictive flux control; interior permanent magnet synchronous; discrete space vector modulation weighted factor; model predictive flux control; interior permanent magnet synchronous; discrete space vector modulation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style

Zhang, G.; Chen, C.; Gu, X.; Wang, Z.; Li, X. An Improved Model Predictive Torque Control for a Two-Level Inverter Fed Interior Permanent Magnet Synchronous Motor. Electronics 2019, 8, 769.

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