Modeling and implementation of a new ZCS interleaved bidirectional buck–boost DC–DC converter for energy storage systems

Aylapogu, Pramod Kumar; Bhajana, Veera Venkata Subrahmanya Kumar; Drábek, Pavel; Jara, Martin

doi:10.1007/s00202-017-0632-1

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…However, this converter requires a high inductors value to operate in continuous conduction mode (CCM), which increases its volume and cost. To obtain low current ripple, low current stress, and low voltage stress in the switches, the converters in earlier studies 22,23 are developed aiming the energy storage system interface working with zero current switching (ZCS) and hence avoiding the most part of switching losses.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Nimitti

Andrade

2022

Circuit Theory & Apps

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SummaryIn this paper, a new bidirectional nonisolated DC‐DC (direct current–direct current) converter to interface microgrid energy storage systems is proposed. This converter is based on the classical bidirectional boost/buck converter, the most used converter in microgrids and can operate both in step‐down and step‐up modes. Besides that, this converter presents low number of components, low voltage and current stress on components, simplicity of operation, low current ripple from low‐side power supply, and two different modes of operation: synchronous and asynchronous. In addition, in this paper, the modeling, control, and power losses estimate of the proposed converter are carried out and the performance of the converter in different aspects of the microgrid application is evaluated, such as step load, abrupt power flux change, and transient analysis. A prototype of 1 kW, 144 to 400 V, is developed in the laboratory to validate the theoretical evaluations of the proposed converter. Besides that, the proposed converter is also evaluated under different dynamic condition which illustrates the effectiveness of the converter. Finally, the maximum efficiency obtained is 97.1% for 500 W working in step‐down operation.

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Section: Introductionmentioning

confidence: 99%

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Nimitti

Andrade

2022

Circuit Theory & Apps

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“…Many structures have ZVS or ZCS at either turn‐on or turn‐off. For example, in [12], a structure of ZCS DC‐DC converter is proposed, but the soft switching is provided only at turn‐on. In [13], an improved ZVS–PWM, active clamp/reset forward converter, with turn‐on zero voltage switching is presented.…”

Section: Introductionmentioning

confidence: 99%

Robust nonlinear control of a quasi‐resonant DC‐DC converter with turn‐on and turn‐off zero current switching

Esmaeili

Gholizade‐Narm

2021

IET Power Electronics

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In this paper, a new robust control strategy is proposed to regulate the output voltage of a quasi-resonant converter. The proposed approach completely eliminates the switching losses and the electromagnetic interferences due to high current changing rates. The circuit structure is simple and affordable and does not have many auxiliary switches. The regulated output voltage of a buck converter must be robust to input voltage variations. Moreover, the controller must be robust to the circuit parameter uncertainties. In this paper, a new control strategy with nonlinear structure is used with the advantage of robustness, and turn-on and turn-off zero current switching. The robustness of the converter to the input voltage variations and the parameter uncertainties is investigated. The new proposed control strategy can be implemented using different controller types. Therefore, a comparison between the proposed nonlinear controller and a conventional PI controller, which is most widely used in practice, is performed. The simulation results show the efficiency and robustness of the proposed method. Finally, the simulation results are verified by the experimental tests.

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Design and implementation of an IBC reduced voltage across output capacitor

2019

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Modeling and implementation of a new ZCS interleaved bidirectional buck–boost DC–DC converter for energy storage systems

Cited by 4 publications

References 13 publications

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Robust nonlinear control of a quasi‐resonant DC‐DC converter with turn‐on and turn‐off zero current switching

Design and implementation of an IBC reduced voltage across output capacitor

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