High Efficiency DC-DC Boost Converter with Stacked Capacitors For Renewable Energy Applications

Gajjala, Saveen; Praveen, M Satya; Kumar, I Kranthi

doi:10.1109/iceca49313.2020.9297391

Cited by 1 publication

(1 citation statement)

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“…It is obvious that the non-coupledinductor type has a lower number of magnetic elements and a smaller size compared to the coupled-inductor type. Different methods, such as coupled inductors [11,12], switched inductors and switched capacitors [13][14][15][16][17][18][19], input-parallel-output series connection, stacked converters [20], and cascaded structures [21], can be employed to achieve high voltage gain in non-isolated converters. However, they suffer from low efficiency due to high voltage stress across switches for coupled inductors and switched inductor cells [22], or due to a large number of elements for cascaded structures, stacked converters, and switchedcapacitor cells [23].…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Switched-Inductor/Switched-Capacitor DC-DC Converter with High Voltage Gain Using a Single Switch for Photovoltaic Application

et al. 2023

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This paper introduces a new high-step-up, non-isolated switched-inductor switched-capacitor DC-DC converter. The proposed converter remarkably integrates switched-capacitor and switched-inductor cells, leading to a significant increase in voltage gain. This unique composite structure not only ensures the continuity of input current, but also successfully minimizes the current ripple and voltage stress across the components, thereby optimizing efficiency. The standout feature of this converter is its singular switch controlled by pulse-width modulation (PWM), which simplifies its operation. A rigorous steady-state operation analysis is conducted, providing a comprehensive understanding of the converter’s performance. For validating the theoretical findings, the paper also details a real-world prototype of the converter. Comparative studies conducted with other similar structures substantiate the superiority of the proposed converter.

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