Novel cross‑switch seven‑level inverter with triple boost capability and self‑balancing

Jianxin Zhao; Yuanrui Chen; Jun Zeng; Lintao Wang; Junfeng Liu

Novel cross‑switch seven‑level inverter with triple boost capability and self‑balancing

Vol. 22, No. 9, pp. 1415-1426, Sep. 2022

10.1007/s43236-022-00443-9

Cross-switch cell

Triple boost gain

Self-balancing

Abstract

A novel single-phase seven-level inverter using a cross-switch cell (CSC) is presented in this paper. Compared with conventional inverters, the proposed topology can generate seven-level output, triple boost gain with one dc source and a reduced number of switches. The CSC provides different charging paths for the capacitors to realize self-balance. Hence, the proposed inverter can realize self-balancing without additional control methods or sensors. Moreover, the proposed structure inherently generates negative output voltage levels without a back-end H-bridge circuit, which reduces the voltage stress on switches. This paper has fully illustrated the operation principles, and presents capacitance calculation and loss analysis. Afterward, a comparative study against recently proposed seven-level inverters is introduced, illustrating the merits of the proposed topology in terms of reduced switches, high voltage-boosting capacity, and self-balancing. Ultimately, a laboratory prototype is built for the validation of the proposed inverter.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

J. Zhao, Y. Chen, J. Zeng, L. Wang, J. Liu, "Novel cross‑switch seven‑level inverter with triple boost capability and self‑balancing," Journal of Power Electronics, vol. 22, no. 9, pp. 1415-1426, 2022. DOI: 10.1007/s43236-022-00443-9.

[ACM Style]

Jianxin Zhao, Yuanrui Chen, Jun Zeng, Lintao Wang, and Junfeng Liu. 2022. Novel cross‑switch seven‑level inverter with triple boost capability and self‑balancing. Journal of Power Electronics, 22, 9, (2022), 1415-1426. DOI: 10.1007/s43236-022-00443-9.