Synchronous Dual-Switch Ultrahigh Step-Up DC–DC Converter Based on Coupled Inductor and Voltage Multiplier for Photovoltaic Systems

Li, Fuwei; He, Jie; Huang, Daojiri; Luo, Peng; Jiang, Haoyu

doi:10.1109/tie.2023.3283699

Cited by 5 publications

References 27 publications

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An ultra-high gain boost converter with low switching stress for integrated multi-energy storage systems

Li,

Zhang,

Zhao

et al. 2024

Sci Rep

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In this paper, a high-gain low-switching-stress coupled-inductor with high voltage step-up voltage multiplier cells quadratic boost converter (VMC-QBC) is proposed. The turn ratio of the coupled inductors and the switch duty cycle increase the dynamic gain, and the two degrees of freedom adjustment and modularity of the voltage multiplier cells (VMC) make the structure more flexible. The use of the same drive signal for both switches makes control easier. While achieving multi-stage boosting and multiplication boosting from low to medium duty cycle, the passive clamping circuit absorbs the energy leaked by the coupled inductor, thus reducing the stress on the switching tube and alleviating the diode reverse recovery problem. A non-ideal model with parasitic parameters is developed to analyse the real voltage gain and the converter losses to give design guidelines. A 300 W prototype is designed and tested. The state space model of the converter is established and the working principle is analysed. Compared to other high-gain quadratic boost converters, the proposed converter has continuous input current, common ground characteristics, and high voltage gain at low to medium duty cycles to accommodate integrated multi-energy storage systems.

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An ultra-high gain boost converter with low switching stress for integrated multi-energy storage systems

Li,

Zhang,

Zhao

et al. 2024

Sci Rep

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Comparative analysis of various restructured Quadratic Boost DC-DC converter

Navamani Jayachandran,

Kathirvel,

Anbazhagan

2024

E3S Web of Conf.

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In this article, five high gain topologies are derived by reconfiguring the conventional quadratic boost converter. This restructuring is carried out by integrating high gain cells and modifying the topology. The voltage conversion ratio of the topologies is derived using steady-state analysis. Each topology is compared with alike converters in the literature with respect to voltage gain, stresses across the devices and total component count. With this comparative study, the superiority of the suggested topologies is highlighted. Finally, the simulation results of the five topologies are obtained from PSIM software and the results are presented to validate the theoretical results.

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