A switching capacitor based multi‐port bidirectional DC–DC converter

Shayeghi, Hossein; Pourjafar, Saeed; Hashemzadeh, Seyed Majid

doi:10.1049/pel2.12137

Cited by 25 publications

(28 citation statements)

References 30 publications

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“…To obtain ( 25)- (27), it has been assumed I o = I o1 = I o2 . Substituting ( 25)-( 27) into (24), current ripple (Δi L ) of the inductors can be written as:…”

Section: Three Input-dual Output Mode (Tido)mentioning

confidence: 99%

“…There are other examples of MPCs with low voltage gain due to base of them consisting conventional converters such as boost and buck-boost converters [22][23][24]. While, voltage gain is improved in [25][26][27] using voltage multiplier cells and switched capacitor, the converters in [25,26] are without Bi-port and the converter in [27] does not have a common ground between its input ports and output port. Ref [28] proposes a SEPIC-based MPC with Bi-port and simultaneous power transmission to the output.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, Bi‐ port is not predicted for some of the references like [4, 25, 26] and they operate without battery storage which suffer from lack of managing produced power by PV. The output is designed for two equal output voltages with opposite directions which make the converter appropriate for connecting to bipolar DC links utilizing a unique method in comparison to the referred converters [1–28]. In addition, there is possibility of connecting load to the two output ports which doubles output voltage.…”

Section: Introductionmentioning

confidence: 99%

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Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

Tanha

Abbasi

Mohammadi

2022

IET Power Electronics

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This paper proposes a multi‐port DC–DC converter consisting of three input ports and two output ports extendable to three. The converter is designed based on quadratic boost converter, a technique for bidirectional port, an auxiliary source and two output ports with opposite polarities. Designed method of the configuration makes it suitable for multi‐applications with flexible operations. Connection of the converter to a bipolar system is possible due to opposite polarities of output ports. In addition, output voltage can be doubled by series connection between the two out ports and it is introduced as the third output port of the converter. The other advantages of the converter are its appropriate voltage gain, performance in stand‐alone mode with storage port and possibility of boosting voltage with similar voltage gains in different operation modes. To validate feasibility of the converter and investigate coordination of its performance with theory, a prototype is prepared for 120 W output power.

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“…To obtain ( 25)- (27), it has been assumed I o = I o1 = I o2 . Substituting ( 25)-( 27) into (24), current ripple (Δi L ) of the inductors can be written as:…”

Section: Three Input-dual Output Mode (Tido)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

Tanha

Abbasi

Mohammadi

2022

IET Power Electronics

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“…Nonisolated boost topologies are proposed in Refs. [12,13], for renewable energy usages with VMCs and coupled inductors. ese converters benefit from continuous input current with low ripple, low voltage stress over switches and didoes, low components count, and higher efficiency.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a New Coupled Inductor-Based Interleaved High Step-Up DC-DC Converter for Renewable Energy Applications

Hashemzadeh

Babaei

Hosseini

et al. 2022

International Transactions on Electrical Energy Systems

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In this paper, a novel nonisolated interleaved high step-up DC-DC converter is proposed based on the coupled inductor and voltage multiplier cell (VMC) methods. Due to the interleaved structure, its input current ripple is low. The low input current ripple and also high power efficiency make the proposed converter suitable for renewable energy applications like photovoltaic (PV) and fuel cell (FC) power generation systems. The windings of the coupled inductors are combined with VMCs to further increase the output voltage with a low power switch’s duty cycle. This combination also leads to obtaining a flexible voltage gain that can be adjusted by coupled inductors’ turns ratio and power switches’ duty cycle. The voltage peaks over semiconductors are much lower than the output voltage. Therefore, low-rated semiconductors can be used for the implementation of the proposed converter, which can reduce the cost and volume. Generally, high voltage gain, low voltage, current stress of power switches, low input current ripple, high efficiency, common ground between the input and output ports, and a low number of elements are the main benefits of the suggested structure. The operation principle, steady-state analysis, and comparison with other converters are presented to show the advantages of the suggested converter. Also, a prototype is built, and the experimental results are presented to prove the theoretical analysis. This prototype is implemented with 200 W rated power, 25 V∼400 V voltage conversion, and 50 kHz switching frequency. Additionally, the efficiency is measured at 95.3% at the rated power.

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“…Topologies that utilize coupled inductors and transformers are also used to obtain a very high voltage. A voltage multiplier cell (VMC) is also used to boost or buck-boost [3] the voltage at low duty cycles. High gain with reduced stress voltage and current stress on the switching devices and passive components, common ground, continuous input current, and reduced number of components are desirable features that are required in any high gain DC-DC converter.…”

Section: Introductionmentioning

confidence: 99%

A Family of Transformerless Quadratic Boost High Gain DC-DC Converters

et al. 2021

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This paper presents three new and improved non-isolated topologies of quadratic boost converters (QBC). Reduced voltage stress across switching devices and high voltage gain with single switch operation are the main advantages of the proposed topologies. These topologies utilize voltage multiplier cells (VMC) made of switched capacitors and switched inductors to increase the converter’s voltage gain. The analysis in continuous conduction mode is discussed in detail. The proposed converter’s voltage gain is higher than the conventional quadratic boost converter, and other recently introduced boost converters. The proposed topologies utilize only a single switch and have continuous input current and low voltage stress across switch, capacitors, and diodes, which leads to the selection of low voltage rating components. The converter’s non-ideal voltage gain is also determined by considering the parasitic capacitance and ON state resistances of switch and diodes. The efficiency analysis incorporating switching and conduction losses of the switching and passive elements is done using PLECS software (Plexim, Zurich, Switzerland). The hardware prototype of the proposed converters is developed and tested for verification.

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A switching capacitor based multi‐port bidirectional DC–DC converter

Cited by 25 publications

References 30 publications

Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

Design and Analysis of a New Coupled Inductor-Based Interleaved High Step-Up DC-DC Converter for Renewable Energy Applications

A Family of Transformerless Quadratic Boost High Gain DC-DC Converters

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