A new topology for bidirectional multi-input multi-output buck direct current-direct current converter

Babaei, Ebrahim; Abbasi, Okhtay

doi:10.1002/etep.2254

Cited by 29 publications

(20 citation statements)

References 26 publications

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“…The converters are controlled separately from each other. Furthermore, several applications have numbers of simultaneous loads with various voltage and power levels, and also, multi‐output converters are essential for these kinds of systems . In previous studies, some new single‐input and multi‐input dc‐dc boost converter are introduced for renewable applications.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, several applications have numbers of simultaneous loads with various voltage and power levels, and also, multi-output converters are essential for these kinds of systems. 8,9 In previous studies, 10-14 some new single-input and multi-input dc-dc boost converter are introduced for renewable applications. In fact, these converters can be used for the same applications, probably.…”

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confidence: 99%

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A multi‐input‐single‐output high step‐up DC‐DC converter with low‐voltage stress across semiconductors

Mohseni

Hosseini

Sabahi

et al. 2019

Int Trans Electr Energ Syst

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Summary In this paper, a new extendable high step‐up multi‐input‐single‐output dc‐dc converter is presented. The proposed converter is composed based on the conventional boost converter and conventional buck‐boost converter. The benefits of the proposed converter consist of the simple control of each duty cycle and low‐voltage stress across the semiconductors. Therefore, conduction losses can be reduced by using the switch with lower resistance rDS(on). The presented converter is flexible to obtain the high power level with the proper selection of duty cycle values. Therefore, the presented converter is controllable in different power levels of input sides. In fact, the proposed converter supports the operation of multiple input sources without any changes in the structure of the topology. The dynamic modeling and efficient multivariable controller design with dynamic responses for the proposed converter are analyzed completely. To confirm the performance of the presented converter, mathematical analysis and simulation results are presented. In addition, the comparison between the presented converter and some other topologies is provided. In order to illustrate the efficient operation of the presented converter, a laboratory prototype for a 425 V/300 W with 40‐ and 45‐V input voltages and 95.62% efficiency is implemented.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

A multi‐input‐single‐output high step‐up DC‐DC converter with low‐voltage stress across semiconductors

Mohseni

Hosseini

Sabahi

et al. 2019

Int Trans Electr Energ Syst

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“…In the typical low voltage DC distributed system such as electric vehicle charging system and small photovoltaic power generation, the DC-DC converter is not only the physical interface of power interaction, but also the key equipment which can stabilize the DC generatrix voltage. Given that the output voltage and current of ESS have a wider range, it is necessary that DC-DC converter has a broad gain and load range, and it is supposed to be more efficient, stable, and reliable as introduced in literature [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Modal Computation and Analysis Based on Phase Sequence of LLC Resonant DC‐DC Converter

Sun

Suo

Hao

et al. 2019

Mathematical Problems in Engineering

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LLC resonant DC-DC converter has wide working range, good voltage gains, and soft switching performance. So it is widely used in power transformation systems of new energy equipment such as UPS, electric vehicle, and photovoltaics (PV). The conduction loss in the main circuit constitutes the main loss occurred in the LLC resonant converter. It may greatly improve the power conversion efficiency of the converter by reducing the conduction loss. To solve the above problems, a method is proposed to calculate and design the parameters of the resonant element in this paper. This method abandons the traditional time sequence mathematical model, and, in order to reduce the effective value of the main loop current of resonant converter, the phase sequence modal analysis is applied. With ZVS as the constraint condition, the design parameters of resonance element that can minimize the conduction loss can be obtained. In the final part, an experimental prototype (300W) is designed and the effectiveness of the mentioned method is verified.

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“…Photovoltaic (PV) panels are one of the most popular renewable energy generation systems, which directly convert sunlight into electricity. However, the generated voltage by PV panels is variable and low, which is related to the radiation and temperature . For this aim, high voltage gain and high‐efficiency direct current (DC)–DC converters are used to overcome the mentioned limitations.…”

Section: Introductionmentioning

confidence: 99%

“…the radiation and temperature. [1][2][3] For this aim, high voltage gain and high-efficiency direct current (DC)-DC converters are used to overcome the mentioned limitations. Moreover, the input current ripple of DC-DC converters should be low, which causes the lifetime of PV panels to be increased.…”

mentioning

confidence: 99%

High step‐up DC‐DC converter with reduced voltage stress on devices

Babaei

Jalilzadeh

Sabahi

et al. 2018

Int Trans Electr Energ Syst

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Summary The aim of this study is to propose a new nonisolated direct current (DC)–DC converter topology with high voltage gain and low voltage stress across the power devices. The proposed converter comprises a switch and n stages of inductor‐capacitor‐diode (L‐C‐D) units. Indeed, the proposed converter is based on the combination of the double‐boost and Single‐ended primary‐inductor converter (SEPIC), which is extended to n stages by adding L‐C‐D units. As a consequence, the proposed converter can generate higher voltage gains with small values of the switch duty cycle, which increase the controllability of the converter. Also, as the number of stages increases, the normalized voltage stress across the power devices is reduced. As a result, the Metal Oxide Semiconductor Field Effect Transistor (MOSFET) switch with low RDS‐on and devices with reduced nominal voltage can be used in the proposed converter. Furthermore, another advantage of the proposed converter is that the percentage of input current ripple is low. The voltage and current stresses of the power devices are analyzed. The circuit performance is compared with other high step‐up structures in the literature in terms of voltage gain and normalized voltage stress. The mathematical analysis and circuit performance of the proposed topology are verified by experimental results.

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A new topology for bidirectional multi-input multi-output buck direct current-direct current converter

Cited by 29 publications

References 26 publications

A multi‐input‐single‐output high step‐up DC‐DC converter with low‐voltage stress across semiconductors

A multi‐input‐single‐output high step‐up DC‐DC converter with low‐voltage stress across semiconductors

Modal Computation and Analysis Based on Phase Sequence of LLC Resonant DC‐DC Converter

High step‐up DC‐DC converter with reduced voltage stress on devices

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