A modified Cuk DC-DC converter for DC microgrid systems

Dahono, Andriazis; Rizqiawan, Arwindra; Dahono, Pekik Argo

doi:10.12928/telkomnika.v18i6.16466

Cited by 8 publications

(7 citation statements)

References 26 publications

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“…Dahono et al [43], Dahono and Dahono [44], have shown that the conventional Cuk converter can be modified into the one shown in Figure 2. As it is derived from convensional topology of the Cuk DC-DC converter, this converter has very low ripple contents in the input and output sides.…”

Section: New Family Of Dc-dc Power Converters 21 Single-phase Modifie...mentioning

confidence: 99%

“…A very low input current ripple is desirable in most of the applications such as photovoltaic and fuel cell power generation systems. In recent papers, the authors have proposed the modified Cuk DC-DC converter [43], [44]. This modified Cuk DC-DC converter can be step-down as a DC-DC buck converter or also can be step-up as a DC-DC boost converter.…”

Section: Introductionmentioning

confidence: 99%

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A new family of bidirectional DC-DC power converters with very low input and output ripples

et al. 2022

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Bidirectional DC-DC converters with very low ripple contents in the input and output sides are desirable in many applications. This paper proposes a new family of bidirectional DC-DC converters with very low input and output ripples that is derived from the conventional Cuk DC-DC converter. At first, a new family of single-phase DC-DC converter is derived. Then, extension of this family into the multiphase ones is presented. Output voltage expressions of the proposed DC-DC converters are presented. It is found that the derived DC-DC converters have lower conduction losses than the conventional DC-DC converters. Expressions of input and output ripples of the proposed DC-DC converters are then also presented. Finally, some experimental results are included to show the basic performance of the proposed converters. Thus, the outcome of the proposed DC-DC converter can be achieved by using the duty ratio is half and the multiphase technique is upper-middle inductors. It given that the current and voltage ripples of proposed DC-DC converter is very low and almost zero.

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Section: New Family Of Dc-dc Power Converters 21 Single-phase Modifie...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new family of bidirectional DC-DC power converters with very low input and output ripples

et al. 2022

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“…This unique combination gives SEPIC converters a key advantage over traditional buck-boost converters: The input and output voltages are kept in phase. In addition, the SEPIC responds to a short-circuit output with greater grace since it uses a series capacitor to move energy from the input to the output 21 – 28 . Another advantage of SEPIC converters is their ability to shut down completely.…”

Section: Introductionmentioning

confidence: 99%

Development of multiple input supply based modified SEPIC DC–DC converter for efficient management of DC microgrid

Reddy,

Alsaif,

Reddy

et al. 2024

Sci Rep

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The development of DC microgrids is reliant on multi-input converters, which offer several advantages, including enhanced DC power generation and consumption efficiency, simplified quality, and stability. This paper describes the development of a multiple input supply based modified SEPIC DC–DC Converter for efficient management of DC microgrid that is powered by two DC sources. Here Multi-Input SEPIC converter offers both versatility in handling output voltage ranges and efficiency in power flow, even under challenging operating conditions like lower duty cycle values. These features contribute to the converter's effectiveness in managing power within a DC microgrid. In this configuration, the DC sources can supply energy to the load together or separately, depending on how the power switches operate. The detailed working states with equivalent circuit diagrams and theoretical waveforms, under steady-state conditions, are shown along with the current direction equations. This paper also demonstrates the typical analysis of large-signal, small-signal, steady-state modeling techniques and detailed design equations. The proposed configuration is validated through the conceptual examination using theoretical and comprehensive MATLAB simulation results. Detailed performance analysis has been done for different cases with various duty ratios. Finally, to show the competitiveness, the multi-input SEPIC topology is compared with similar recent converters.

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“…Fig. 1 Conventional single-phase inverter Several solutions have been proposed to resolve the aforementioned problems using DC-DC converters other than a simple buck type [18][19][20][21][22][23] . The inverter in Ref.…”

Section: Introductionmentioning

confidence: 99%

Inherently Sinusoidal Single-Phase Voltage Source Inverter Based on Modified Cuk Cell

Munir,

Wisyahyadi,

Rizqiawan

et al. 2024

Chin. J. Electr. Eng.

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Renewable energy has become important for electricity generation because of the high air pollution associated with conventional fossil-based energy systems. Conventional fossil-based power plants are gradually transitioning by incorporating renewable energy sources, such as photovoltaic (PV) cells. In a PV system, an inverter converts DC power from solar panels to AC power required to serve common electrical loads. A conventional H-bridge inverter topology has several disadvantages, such as the voltage being not sinusoidal, switching the DC voltage and high common-mode voltage. The common-mode voltage can cause a large leaked capacitive current, which can result in undesirable operation in solar power applications. A common solution to this problem is the addition of a large filter to the input or output of an inverter. An inherent sinusoidal voltage source inverter based on a modified Cuk converter as its basic cell, which simultaneously generates a sinusoidal output voltage and a lower common-mode voltage, is proposed. The proposed topology does not require additional input or output filters. Analytical expressions are derived to confirm the operation of the proposed topology. Simulation results confirm the mathematical analysis. A laboratory-scale experiment is performed to verify the proposed inverter.

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A modified Cuk DC-DC converter for DC microgrid systems

Cited by 8 publications

References 26 publications

A new family of bidirectional DC-DC power converters with very low input and output ripples

A new family of bidirectional DC-DC power converters with very low input and output ripples

Development of multiple input supply based modified SEPIC DC–DC converter for efficient management of DC microgrid

Inherently Sinusoidal Single-Phase Voltage Source Inverter Based on Modified Cuk Cell

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