Output common mode voltage of a newly combined three‑phase full‑bridge duplex inverter

Hengli Wang; Lei Yuan; Qiang Ren

Output common mode voltage of a newly combined three‑phase full‑bridge duplex inverter

Hengli Wang

Lei Yuan

Qiang Ren

Vol. 22, No. 9, pp. 1542-1551, Sep. 2022

10.1007/s43236-022-00458-2

Multilevel inverter

Double Fourier series

Common mode voltage

Abstract

Multilevel inverters, owing to their high equivalent switching frequency, high quality of output waveforms, fast dynamic response, and high redundancy, contribute significantly to high-efficiency and high-power inverter applications. However, in practical scenarios, multilevel inverters also have negative impacts. The output common mode voltage is one of the typical problems, which may harm the reliability of systems. In this study, a combined three-phase full-bridge duplex inverter is proposed. Then, the general expression of the proposed inverter’s output common mode voltage is derived based on the numerical double Fourier series. The generation mechanism of the output common mode voltage is subsequently revealed. A common mode voltage suppression strategy, which is universal and applicable to other multiple inverter topologies, is also proposed. The effectiveness of the proposed theory and control strategy is validated through the simulation and the experiment.

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]

H. Wang, L. Yuan, Q. Ren, "Output common mode voltage of a newly combined three‑phase full‑bridge duplex inverter," Journal of Power Electronics, vol. 22, no. 9, pp. 1542-1551, 2022. DOI: 10.1007/s43236-022-00458-2.

[ACM Style]

Hengli Wang, Lei Yuan, and Qiang Ren. 2022. Output common mode voltage of a newly combined three‑phase full‑bridge duplex inverter. Journal of Power Electronics, 22, 9, (2022), 1542-1551. DOI: 10.1007/s43236-022-00458-2.