Variable control frequency soft-switching modulation strategy for high-frequency link AC-DC matrix converter

被引：0
|
作者：
Mei Y. [1 ]
Wei Z. [1 ]
Liu J. [1 ]
Lu Q. [1 ]
机构：
[1] Inverter Technology Engineering Research Center, North China University of Technology University, Beijing
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2024年 / 28卷 / 04期
关键词：
AC-DC converter; control cycle; high efficiency; phase-shift control; soft switching;
D O I：
10.15938/j.emc.2024.04.017
中图分类号：
学科分类号：
摘要：
A variable control frequency soft-switching modulation strategy was proposed for the high-efficiency requirements of high-frequency link AC-DC matrix converter. This modulation strategy was developed based on the piecewise synchronous control strategy with zero vector embedded. By considering the principle of constant average power in one control cycle, the length of the control cycle was changed, the voltage vector arrangement in a control cycle was adjusted, and the pulse widths were optimized in the proposed modulation strategy. Hence, it enables the zero voltage switch of all switching devices during commutation. Simulation and experimental results show that the proposed modulation strategy can achieve the sinusoidal grid currents during the rectification mode and inverter mode. The grid-side power factor reaches 0. 981 and the output voltage ripples are very small. The highest efficiency of the converter reaches 96. 9% . Hence, the high performance and high efficiency operation of the converter are realized. © 2024 Editorial Department of Electric Machines and Control. All rights reserved.
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页码：158 / 166
页数：8
相关论文
共 16 条
  • [1] HE Shengzhong, DAI Donglei, ZHOU Jiancheng, Multi-mode variable frequency wide output LLC converter, Electric Machines and Control, 25, 2, (2021)
  • [2] LIAO Jiarui, HANG Lijun, DAN Zhimin, Et al., Digital control method of wide-range CLLLC bidirectional synchronous rectification, Transactions of China Electrotechnical Society, 37, 14, (2022)
  • [3] MEI Yang, ZHANG Jiaqi, High dynamic current control strategy for bidirectional isolated AC-DC matrix converter based on deadbeat predictive algorithm, High Voltage Engineering, 50, 3, (2024)
  • [4] XIA Zhipeng, JIN Ping, CHANG Ling, Minimum power reflux control for high frequency link matrix converter [J], Electric Machines and Control, 26, 4, (2022)
  • [5] GU Ling, A review of research on single-stage high-frequency isolated three-phase bidirectional AC/ DC converters [J], Proceedings of the CSEE, 41, 21, (2021)
  • [6] FANG F, TIAN H, Li Y., SVM strategy for mitigating low - order harmonics in isolated AC-DC matrix converter, IEEE Transactions on Power Electronics, 36, 1, (2020)
  • [7] MEI Yang, HUANG Weichao, LIU Ziyu, Control strategy of matrix isolated bidirectional AC-DC converter [J], Transactions of China Electrotechnical Society, 34, 12, (2019)
  • [8] VARAJAO D, ARAUJO R E, MIRANDA L M, Et al., Modulation strategy for a single-stage bidirectional and isolated AC-DC matrix converter for energy storage systems[J], IEEE Transactions on Industrial Electronics, 65, 4, (2017)
  • [9] LIANG Chen, ZHANG Wei, Current tracking control strategy for high power factor electrolytic capacitorless IPMSM drive system [J], Electric Machines and Control, 25, 10, (2021)
  • [10] MEI Yang, LU Qiaochu, HUANG Weichao, Soft switching compound modulation strategy for bidirectional isolated AC-DC Matrix Converter [J], Proceedings of the CSEE, 41, 7, (2021)
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