Low-Complexity Virtual-Vector-Based FCS-MPC with Unaffected Neutral-Point Voltage for Three-Phase T-Type Inverters

Renji Mo; Yong Yang; Rong Chen; Weimin Wu; Jiefeng Hu; Huiqing Wen; Yiwang Wang; Gang Fang; Jose Rodriguez

doi:10.1109/JESTPE.2023.3348289

Low-Complexity Virtual-Vector-Based FCS-MPC with Unaffected Neutral-Point Voltage for Three-Phase T-Type Inverters

Renji Mo
, Yong Yang^*
, Rong Chen^*
, Weimin Wu
, Jiefeng Hu
, Huiqing Wen
, Yiwang Wang
, Gang Fang
, Jose Rodriguez

^*Corresponding author for this work

Academy of JITRI

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

This article presents a new finite control set model predictive control (FCS-MPC) algorithm for three-phase (3P) T-type voltage source inverters. The proposed algorithm incorporates a vector combination technique to generate a total of 51 virtual vectors (VVs), which is 89% more than the traditional algorithm, leading to excellent inverter output voltage tracking capability with reduced harmonics. Such VVs do not affect the neutral point (NP) voltage. Therefore, the NP voltage balance term can be eliminated in the cost function. In addition, to achieve a low computational burden, a three-stage optimization is employed. Experimental results validate the effectiveness of the proposed algorithm and demonstrate its superiority over conventional approaches.

Original language	English
Pages (from-to)	1683-1693
Number of pages	11
Journal	IEEE Journal of Emerging and Selected Topics in Power Electronics
Volume	12
Issue number	2
DOIs	https://doi.org/10.1109/JESTPE.2023.3348289
Publication status	Published - 1 Apr 2024

Keywords

Model predictive control (MPC)
neutral point (NP) voltage
three-level (3L) inverter
virtual voltage vector

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10.1109/JESTPE.2023.3348289

Cite this

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title = "Low-Complexity Virtual-Vector-Based FCS-MPC with Unaffected Neutral-Point Voltage for Three-Phase T-Type Inverters",

abstract = "This article presents a new finite control set model predictive control (FCS-MPC) algorithm for three-phase (3P) T-type voltage source inverters. The proposed algorithm incorporates a vector combination technique to generate a total of 51 virtual vectors (VVs), which is 89\% more than the traditional algorithm, leading to excellent inverter output voltage tracking capability with reduced harmonics. Such VVs do not affect the neutral point (NP) voltage. Therefore, the NP voltage balance term can be eliminated in the cost function. In addition, to achieve a low computational burden, a three-stage optimization is employed. Experimental results validate the effectiveness of the proposed algorithm and demonstrate its superiority over conventional approaches.",

keywords = "Model predictive control (MPC), neutral point (NP) voltage, three-level (3L) inverter, virtual voltage vector",

author = "Renji Mo and Yong Yang and Rong Chen and Weimin Wu and Jiefeng Hu and Huiqing Wen and Yiwang Wang and Gang Fang and Jose Rodriguez",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

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doi = "10.1109/JESTPE.2023.3348289",

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T1 - Low-Complexity Virtual-Vector-Based FCS-MPC with Unaffected Neutral-Point Voltage for Three-Phase T-Type Inverters

AU - Mo, Renji

AU - Yang, Yong

AU - Chen, Rong

AU - Wu, Weimin

AU - Hu, Jiefeng

AU - Wen, Huiqing

AU - Wang, Yiwang

AU - Fang, Gang

AU - Rodriguez, Jose

PY - 2024/4/1

Y1 - 2024/4/1

N2 - This article presents a new finite control set model predictive control (FCS-MPC) algorithm for three-phase (3P) T-type voltage source inverters. The proposed algorithm incorporates a vector combination technique to generate a total of 51 virtual vectors (VVs), which is 89% more than the traditional algorithm, leading to excellent inverter output voltage tracking capability with reduced harmonics. Such VVs do not affect the neutral point (NP) voltage. Therefore, the NP voltage balance term can be eliminated in the cost function. In addition, to achieve a low computational burden, a three-stage optimization is employed. Experimental results validate the effectiveness of the proposed algorithm and demonstrate its superiority over conventional approaches.

AB - This article presents a new finite control set model predictive control (FCS-MPC) algorithm for three-phase (3P) T-type voltage source inverters. The proposed algorithm incorporates a vector combination technique to generate a total of 51 virtual vectors (VVs), which is 89% more than the traditional algorithm, leading to excellent inverter output voltage tracking capability with reduced harmonics. Such VVs do not affect the neutral point (NP) voltage. Therefore, the NP voltage balance term can be eliminated in the cost function. In addition, to achieve a low computational burden, a three-stage optimization is employed. Experimental results validate the effectiveness of the proposed algorithm and demonstrate its superiority over conventional approaches.

KW - Model predictive control (MPC)

KW - neutral point (NP) voltage

KW - three-level (3L) inverter

KW - virtual voltage vector

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Low-Complexity Virtual-Vector-Based FCS-MPC with Unaffected Neutral-Point Voltage for Three-Phase T-Type Inverters

Abstract

Keywords

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