A Novel Reversal ?-Shape Coupled Inductor High-Step AC-AC Converter

Hongchen Liu and Xinsheng Zhang
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Hongchen Liu: School of Electrical Engineering and Automation, Harbin Institute of Technology, No. 92, Xidazhi Street, Nangang District, Harbin 150001, China
Xinsheng Zhang: School of Electrical Engineering and Automation, Harbin Institute of Technology, No. 92, Xidazhi Street, Nangang District, Harbin 150001, China

Energies, 2018, vol. 11, issue 10, 1-11

Abstract: This paper presents a novel reversal Γ-shape coupled inductor high-step AC-AC converter. This converter uses a reversal Γ-shape coupled inductor that consists of a two-winding coupled inductor for higher voltage gain. As the coupling inductance ratio is closer to 1 or the duty ratio is larger, the boosting capability of this converter is enhanced. The proposed converter has the following advantages: first, it can realize a continuous input current. Second, the input and output voltage have a common ground in the proposed converter. Apart from these features, the proposed topology has a higher voltage gain with a lower voltage stress on switches and the proposed topology has low cost, and a simple configuration and control scheme. The gain of the proposed high-step AC-AC converter is determined by more variables. Thus, when designing the converter there are more options to meet different requirements. The principle of operation is described and discussed in this paper. In addition, the operating performance is illustrated and estimated based on simulation and experimental results.

Keywords: topology; common ground; high gain; low voltage stress; magnetically coupled (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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