Stacked Input-Output High Step-Up Buck-Boost DC-DC Converter with Coupled Inductor and Voltage Multiplier. (27th June 2022)

• Record Type: Journal Article
• Authors: Miguel Klein Faistel, Tiago; Toebe, Ademir; Andrade, António Manuel Santos Spencer; Guisso, Ronaldo Antonio; Mendes da Silva, Mauricio
• Other Names: Azam Faroque Academic Editor.
• Is Part Of: International transactions on electrical energy systems. Volume 2022(2022)
• Publication Date: 2022-06-27
• Subjects: Electric power -- Periodicals; Electric power systems -- Periodicals; Electrical engineering -- Periodicals; 621.3
• DOI: 10.1155/2022/1788472
• Languages: English
• ISSNs: 2050-7038

Abstract

Abstract : This paper presents three high voltage gain DC-DC converters based on stacked input and output connection of nonisolated buck-boost converters with coupled inductor and voltage multiplier cells. Besides that, an empirical approach for the coupled inductor winding is proposed to show how to reduce the leakage inductance. In this way, the proposed converter achieves high voltage gain, low voltage, and current stress across the components without using an auxiliary clamp circuit, and they present a low component count. Besides that, this paper presents the evaluation of MPPT, modeling, and control of the converters. To validate the theoretical evaluations, three prototypes were built and evaluated experimentally, considering input power of 200 W, input voltage of 37.4 V, output voltage of 400 V, and switching frequency of 50 kHz. Finally, it should be noted that the maximum efficiency achieved is 97.53% at nominal input power.