High step‑up three‑level DC–DC converter with three‑winding coupled‑inductor

Xinping Ding; Delin Zhao; Yun Liu; Kai Li; Yangyang Hao

High step‑up three‑level DC–DC converter with three‑winding coupled‑inductor

Vol. 20, No. 1, pp. 53-64, Jan. 2020

10.1007/s43236-019-00006-5

High step-up voltage gain

Leakage inductor

Switched coupled-inductor

Three-level DC–DC converter

Abstract

Due to the wide adoption of photovoltaic power generation, non-isolated high step-up DC–DC converters are becoming more and more popular. Among these converters, the switched/coupled-inductor-based converter is more attractive due to the fact that it has fewer power devices and a high efficiency. This paper presents a three-level high step-up DC–DC topology with a three-winding coupled-inductor. When compared with a conventional switched/coupled-inductor-based converter, a higher efficiency can be achieved, owing to low voltage stresses devices, fewer semiconductors in the power loop, lower current stresses, and ZCS of the main switches. The operating principle of the proposed topology is analyzed in detail via equivalent circuits, where a theoretical analysis is carried out using state space modelling. Experimental results obtained on a 24–300 V, 360 W lab prototype have verified the excellent performance of the proposed DC–DC converter.

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]

X. Ding, D. Zhao, Y. Liu, K. Li, Y. Hao, "High step‑up three‑level DC–DC converter with three‑winding coupled‑inductor," Journal of Power Electronics, vol. 20, no. 1, pp. 53-64, 2020. DOI: 10.1007/s43236-019-00006-5.

[ACM Style]

Xinping Ding, Delin Zhao, Yun Liu, Kai Li, and Yangyang Hao. 2020. High step‑up three‑level DC–DC converter with three‑winding coupled‑inductor. Journal of Power Electronics, 20, 1, (2020), 53-64. DOI: 10.1007/s43236-019-00006-5.