A new three voltage level space vector modulation for high-frequency link matrix converter

Zhe Cai; Hongchen Liu

doi:10.1117/12.2689712

10 August 2023 A new three voltage level space vector modulation for high-frequency link matrix converter

Zhe Cai, Hongchen Liu

Proceedings Volume 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023); 127483L (2023) https://doi.org/10.1117/12.2689712
Event: 5th International Conference on Information Science, Electrical and Automation Engineering (ISEAE 2023), 2023, Wuhan, China

Abstract

The high-frequency link matrix converter (HFLMC) is composed of a traditional H-bridge circuit connected with the matrix converter through a single-phase high-frequency transformer (HFT). Compared with the traditional isolated converter, the high-frequency link matrix converter not only realizes the isolated DC-AC conversion, but also improves the transmission efficiency. However, the SVPWM modulation method for high-frequency link matrix converter will have relatively large circulating currents. In this paper, the reason of circulating currents of high-frequency link matrix converter is analyzed. Based on space vector modulation, an improved SVM modulation on method is proposed. A zero vector state is added between the two active vectors to reduce the circulating currents generated when switching between the active vectors. The working mode of the improved SVM modulation method and the active vector action time are analyzed. Finally, the correctness of the modulation method proposed in this paper is verified by simulation.

Citation Download Citation

Zhe Cai and Hongchen Liu "A new three voltage level space vector modulation for high-frequency link matrix converter", Proc. SPIE 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023), 127483L (10 August 2023); https://doi.org/10.1117/12.2689712

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