Research on simplified SVPWM strategy for nine‑switch converter

Jia Guo

Research on simplified SVPWM strategy for nine‑switch converter

Jia Guo

Vol. 20, No. 6, pp. 1386-1394, Nov. 2020

10.1007/s43236-020-00124-5

Nine-switch converter

Modulation strategy

SVPWM

Minimum DC voltage

Abstract

Nine-switch converter has promising application prospects in fields where cost, volume and power density are required. The performance of the converter depends to a large extent on the modulation strategy. The existing SVPWM strategy for nineswitch converter requires a lengthy zero-vectors table to make over-modulation judgment, which increased the complexity of the algorithm and the runtime of the program. To improve performance, a novel simplified SVPWM strategy for nine-switch converter is proposed in this paper. The zero-vectors table is replaced by a set of simple formulas for over-modulation judgment and processing. This simplification is based on derivation of the implied reference signals of the SVPWM strategy. The correctness of the proposed algorithm is verified through simulation and experimental results. It is also demonstrated that the proposed simplified algorithm can achieve the same output results as the traditional method with less code length and runtime.

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Cite this article

[IEEE Style]

J. Guo, "Research on simplified SVPWM strategy for nine‑switch converter," Journal of Power Electronics, vol. 20, no. 6, pp. 1386-1394, 2020. DOI: 10.1007/s43236-020-00124-5.

[ACM Style]

Jia Guo. 2020. Research on simplified SVPWM strategy for nine‑switch converter. Journal of Power Electronics, 20, 6, (2020), 1386-1394. DOI: 10.1007/s43236-020-00124-5.