Two-Phase Interleaved SEPIC MPPT Using Coupled Inductors in Continuous Conduction Mode

This work presents a nonisolated high step‐up single‐ended primary inductance converter (SEPIC) topology for high‐power, high‐current applications. The converter operation is based on the interleaving principle, and the active switches are driven by gating signals phase shifted by 180°, whereas automatic current sharing is achieved owing to an autotransformer with unity turns ratio. It is possible to extend the voltage gain employing voltage multiplier cells (VMCs) composed of diodes and capacitors. Prominent advantages of the structure include low current and voltage stresses on the semiconductors, inherent modularity, better thermal distribution, and reduced dimensions of the filter elements. A comprehensive theoretical analysis is derived, from which a 1‐kW prototype is designed and thoroughly evaluated.

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Nonisolated high step‐up DC‐DC interleaved SEPIC converter based on voltage multiplier cells

Salvador

Tofoli

Oliveira

et al. 2022

Circuit Theory & Apps

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Two-Phase Interleaved SEPIC MPPT Using Coupled Inductors in Continuous Conduction Mode

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Nonisolated high step‐up DC‐DC interleaved SEPIC converter based on voltage multiplier cells

Nonisolated high step‐up DC‐DC interleaved SEPIC converter based on voltage multiplier cells

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