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Article

Common-Mode Voltage Reduction Method Based on Variable Sampling Frequency Finite Control Set-Model Predictive Control for PMSM Drive Systems

1
Department of Electrical and Computer Engineering, College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
2
Electric Propulsion Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51541, Republic of Korea
3
Dawonsys Co., Ltd., Anyang 15655, Republic of Korea
*
Author to whom correspondence should be addressed.
Energies 2024, 17(6), 1443; https://doi.org/10.3390/en17061443
Submission received: 13 February 2024 / Revised: 6 March 2024 / Accepted: 15 March 2024 / Published: 17 March 2024
(This article belongs to the Special Issue Advanced Control in Power Electronics, Drives and Generators)

Abstract

In this article, a finite control set-model predictive control (FCS-MPC) with variable sampling time is proposed. A zero-voltage vector appears in the dead time between specific voltage vectors, resulting in an unintentionally large common-mode voltage. Herein, a large common-mode voltage was suppressed, and the load current was controlled using a voltage vector combination that did not cause a zero-voltage vector in dead time. Additionally, to improve the total harmonic distortion (THD) of the load current, the intersection of the predicted current and the command current by all the volage vectors (VVs) in the combination is confirmed. The VV where the intersection occurs is selected as the optimal VV. This optimal VV is applied to the point where the predicted current and the reference current intersect. The applicable range of the sampling time should be selected by considering the calculation time and number of switching. Through the proposed FCS-MPC strategy, not only can the common-mode voltage be limited to within ±Vdc/6, but an improved THD can also be obtained compared to the existing method using fixed sampling. The proposed method was verified through PSIM simulation and experimental results.
Keywords: voltage source inverter (VSI); finite control set-model predictive control (FCS-MPC); common-mode voltage (CMV) voltage source inverter (VSI); finite control set-model predictive control (FCS-MPC); common-mode voltage (CMV)

Share and Cite

MDPI and ACS Style

Lee, Y.-S.; Choo, K.-M.; Lee, C.-H.; An, C.-G.; Yi, J.; Won, C.-Y. Common-Mode Voltage Reduction Method Based on Variable Sampling Frequency Finite Control Set-Model Predictive Control for PMSM Drive Systems. Energies 2024, 17, 1443. https://doi.org/10.3390/en17061443

AMA Style

Lee Y-S, Choo K-M, Lee C-H, An C-G, Yi J, Won C-Y. Common-Mode Voltage Reduction Method Based on Variable Sampling Frequency Finite Control Set-Model Predictive Control for PMSM Drive Systems. Energies. 2024; 17(6):1443. https://doi.org/10.3390/en17061443

Chicago/Turabian Style

Lee, Yoon-Seong, Kyoung-Min Choo, Chang-Hee Lee, Chang-Gyun An, Junsin Yi, and Chung-Yuen Won. 2024. "Common-Mode Voltage Reduction Method Based on Variable Sampling Frequency Finite Control Set-Model Predictive Control for PMSM Drive Systems" Energies 17, no. 6: 1443. https://doi.org/10.3390/en17061443

APA Style

Lee, Y.-S., Choo, K.-M., Lee, C.-H., An, C.-G., Yi, J., & Won, C.-Y. (2024). Common-Mode Voltage Reduction Method Based on Variable Sampling Frequency Finite Control Set-Model Predictive Control for PMSM Drive Systems. Energies, 17(6), 1443. https://doi.org/10.3390/en17061443

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