A Dynamic-Segment-Alternating SVPWM for a Five-Level NNPP Converter With Neutral-Point Voltage Control

Jiang, Jianguo; Jian, Jiang; Zhou, Zhongzheng; Liu, Yunlong; Liu, Cong

doi:10.1109/tpel.2021.3059574

Cited by 7 publications

(1 citation statement)

References 37 publications

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“…SVPWM is a high-performance and optimized modulation method, which can significantly reduce the harmonic of the output current of the inverter and the loss of motor and the torque pulsation. Meanwhile, it also has the features of easy control, easy digitization and high DC-voltage utilization [12][13][14]. A novel SVPWM algorithm based on line voltage coordinate was studied in [15], which simplified the determination of basic vectors and calculation of the corresponding action time.…”

Section: Introductionmentioning

confidence: 99%

A predictive control method for switching sequence selection based on SVPWM for five‐level converter

Liu

Wang

et al. 2023

IET Power Electronics

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Aiming at the problems of complex realization, single control target and difficulty in selecting the optimal zero sequence voltage when the traditional space vector PWM (SVPWM) algorithm is adopted in five-level active neutral-point-clamp (5L-ANPC) converter, a predictive control optimal switching sequence selection (PC-OSSS) method is proposed. The method adopts the SVPWM control strategy base on the line voltage coordinate and then realizes the selection of optimal switching sequence through the multi-objective predictive control method. Firstly, the principle of SVPWM based on line voltage coordinate is introduced, and all switching sequences that can be output are obtained. Secondly, the mathematical models of the floating capacitor (FC) voltage, the neutral point (NP) voltage and the common mode (CM) voltage corresponding to each switch sequence are established. Finally, the optimal switch sequence is selected by using the predictive control method based on priority ranking. Compared with traditional SVPWM, the outstanding advantage of this method is that the traditional qualitative comparison method is replaced by quantitative calculation. The multi-objective control performance of the converter is improved while retaining the advantages of the traditional SVPWM fixed frequency. Finally, the practicability and effectiveness of the proposed control strategy are verified by simulation and experiment.

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