Three-Mode Reconfigurable Rectifier for DC-DC Converters with Wide Input Voltage Range

Chub, Andrii; Vinnikov, Dmitri; Kouro, Samir; Malinowski, Mariusz

doi:10.1109/iecon.2019.8926994

Cited by 5 publications

(12 citation statements)

References 27 publications

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“…Such two-mode rectifiers are characterized by the 1:2 range of the ac-dc gain G R . The MMR topology recently proposed in [13] (Figure 2f) enables all these three modes-i.e., FBR, VDR, and VQR-thus allowing a remarkable ac-dc voltage gain range of 1:4. Figure 2g shows another approach to a three-mode MMR, which is realized by combining a VQR with a symmetrical voltage sixfolder rectifier (VSR).…”

Section: State-of-the-art Multimode Rectifiersmentioning

confidence: 99%

“…This MMR is not suitable for low-cost high step-up applications, as it requires costly driving circuits and high-resolution PWM. [16] (e), passive full-bridge/voltage doubler/voltage quadrupler rectifier [13] (f), and 3-mode reconfigurable voltage multiplier rectifier [22] (g). All other topologies utilize a mode change switch(es) SR that is controlled statically.…”

Section: State-of-the-art Multimode Rectifiersmentioning

confidence: 99%

“…The selected MMR compares favorably to the existing techniques for voltage gain range extension. For example, a 1:4 adjustment of the voltage regulation [16] (e), passive full-bridge/voltage doubler/voltage quadrupler rectifier [13] (f), and 3-mode reconfigurable voltage multiplier rectifier [22] (g).…”

Section: State-of-the-art Multimode Rectifiersmentioning

confidence: 99%

“…This could unlock the true potential of even the simplest BFEI topologies [16], which is essential for cost-sensitive applications such as PV MLPE systems. On the other hand, the application of MMR to high step-up DC-DC converters in a wide input voltage range could result in efficiency steps at the rectifier mode transitions [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…This study focuses on adjusting the ac-dc voltage gain G R of the rectifier stage as a new technique that has been increasingly used in recent years. This gain could be adjusted either smoothly or stepwise by applying an ac boost [11,12] or multimode rectifiers (MMRs) [13,14] correspondingly. In general, the step changes in the gain G R of an MMR could also be smoothed by employing a special switching sequence for a short time [15].…”

Section: Introductionmentioning

confidence: 99%

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Wide-Range Operation of High Step-Up DC-DC Converters with Multimode Rectifiers

et al. 2021

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This paper discusses the essence and application specifics of the multimode rectifiers in high step-up DC-DC converters. It presents an overview of existing multimode rectifiers. Their use enables operation in the wide input voltage range needed in highly demanding applications. Owing to the rectifier mode changes, the converter duty cycle can be restricted to a range with a favorable efficiency. It is shown that the performance of such converters depends on the front-end inverter type. The study considers current- and impedance-source front-end topologies, as they are the most relevant in high step-up applications. It is explained why the full- and half-bridge implementations provide essentially different performances. Unlike the half-bridge, the full-bridge implementation shows step changes in efficiency during the rectifier mode changes, which could compromise the long-term reliability of the converter. The theoretical predictions are corroborated by experimental examples to compare performance with different boost front-end inverters.

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Section: State-of-the-art Multimode Rectifiersmentioning

confidence: 99%