Single‐active switch high‐voltage gain DC–DC converter using a non‐coupled inductor

Mizani, Amirreza; Ansari, Sajad Arab; Shoulaie, Abbas; Davidson, Jonathan N.; Foster, M. P.

doi:10.1049/pel2.12007

Cited by 15 publications

(17 citation statements)

References 29 publications

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“…From (1), the stored energy of leakage inductance in air area, 𝐸 𝑎𝑖𝑟 , (defined in Fig. 3) can be calculated as (4).…”

Section: A Leakage Energy Stored In Window Areamentioning

confidence: 99%

“…pulse-width-modulated (PWM) converters such as the buck and boost converters cannot be operated at high frequency under continuous conduction mode (CCM) since they suffer from high switching losses under high-frequency operation. Hence, their switching frequency needs to be limited to achieve high efficiency, leading to lower power density [1][2][3][4][5]. Research has attempted to provide a softswitching capability for hard-switched converters; however, solutions are mainly based on adding various auxiliary circuits to the topology of the hard-switched converters, which increases their complexity and cost [6][7][8].…”

Section: Introduction Ard-switchedmentioning

confidence: 99%

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Fully-Integrated Solid Shunt Planar Transformer for LLC Resonant Converters

Ansari

Davidson

Foster

2022

IEEE Open J. Power Electron.

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A new topology for achieving high leakage inductance in inserted-shunt integrated magnetic planar transformers is proposed. In the proposed topology, two one-segment shunts are placed across the planar E-core air gap and between the primary and secondary windings. The proposed topology benefits using solid inexpensive ferrite shunts, making manufacturing easier. A detailed mathematical model is derived from which a design methodology is developed, providing accurate estimation for the leakage and magnetising inductances. The theoretical analysis has been verified using finite-element analysis and experimental implementation. AC resistance analysis and efficiency comparison are also presented for the proposed topology and a recent topology with inserted-segmental-shunt, which shows the proposed topology provides higher efficiency because of lower AC resistance. In addition, an isolated LLC resonant converter is designed and built to investigate the performance of the proposed topology in practice. The three magnetic components needed for the designed LLC resonant converter is integrated in a single planar transformer using the proposed topology and the converter operates properly.

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“…From (1), the stored energy of leakage inductance in air area, 𝐸 𝑎𝑖𝑟 , (defined in Fig. 3) can be calculated as (4).…”

Section: A Leakage Energy Stored In Window Areamentioning

confidence: 99%

Section: Introduction Ard-switchedmentioning

confidence: 99%

Fully-Integrated Solid Shunt Planar Transformer for LLC Resonant Converters

Ansari

Davidson

Foster

2022

IEEE Open J. Power Electron.

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“…A single switch converter accomplished with non-coupled inductor is flaunted here, that fulfills the objectives without utilizing any additional components and it also favors high proficiency with reduced control complexities. It offers low current ripple and becomes pertinent towards green energy applications [17]. This paper discusses about a modified VMC with SL network.…”

Section: Literature Reviewmentioning

confidence: 99%

Adaptive neuro-fuzzy approach for maximum power point tracking with high gain converter for photo voltaic applications

2022

IJATEE

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Energy is essential for improving the management of the power systems. One of the major concerns in the power sector is increasing demand of power that tends to increase the demand for fossil fuels causing environmental problems. Thus, it is essential to use variable renewable energies for direct current (DC) micro grid applications. Solar photo voltaic (PV) is one of the phenomena where the solar irradiance is converted to electrical power through solar cell. A new high gain converter is implemented which is fed from solar PV to track the maximum voltage and power so as to elevate the output efficiency of the PV panel. The envisioned converter can be effectively worked in continuous conduction mode (CCM) with same gating pulse for the two switches that guarantees wide plying range. The preferred converter comprises least number of components and achieves a maximum gain of 25 for the switch on period of 0.8 which makes the control circuit simpler compared to other non-coupled inductor topologies. Presently, special maximum power point tracking (MPPT) procedures have been acquainted to track the maximum power point (MPP) viably of which adaptive neuro fuzzy inference system (ANFIS) based controller is used in this article and high efficiency of about 98.96% is attained with good dynamic response. Over here, the potency of the system is endorsed by means of MATLAB/SIMULINK and compared with the other standard MPPT methods. Further, functioning and assessment of the conspired work are inspected carefully and verified effectively.

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“…However, it works with hard switching making more losses that affect the system performance and efficiency, and it has a limited gain as it is used only for duty cycles less than 0.3. In 20 , a single switch DC/DC converter with non-coupled inductors is used that achieves high voltage gain with high efficiency. The major drawback is it has a large number of passive components that make the system bulkier and more expensive.…”

Section: Introductionmentioning

confidence: 99%

High gain DC/DC converter with continuous input current for renewable energy applications

Mansour

Amer

El-Kholy

et al. 2022

Sci Rep

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In this paper, a new design of a non-isolated high-voltage gain DC/DC converter that operates at a reasonable duty cycle, by merging the dual boost converter with the switched inductor structure, is presented as a solution for the high-conversion ratio requirement. The proposed converter operates in discontinuous-current mode (DCM) with zero current switching for all switches and diodes. Wide duty cycle range operation, high output voltage gain, low switching stress, small switching losses, and high efficiency are achieved efficiently. Operating the converter in DCM can support a wide range of the duty cycle operation, maintain lower voltage stress of all devices, ensure the same current sharing among inductors, make it easy to control, provide more stability, and require a smaller inductor which reduces size and weight of the proposed converter. Moreover, the converter operates with a continuous input current. These features make the converter a good choice for many applications such as photovoltaic, x-ray, fuel cells, etc. To prove the converter’s effectiveness, theoretical analysis, project specifications, and operation principles are presented and studied. Experimental results in an open and closed-loop, and a comparison with other recent converters are also introduced to confirm the validity of the proposed converter.

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Single‐active switch high‐voltage gain DC–DC converter using a non‐coupled inductor

Cited by 15 publications

References 29 publications

Fully-Integrated Solid Shunt Planar Transformer for LLC Resonant Converters

Fully-Integrated Solid Shunt Planar Transformer for LLC Resonant Converters

Adaptive neuro-fuzzy approach for maximum power point tracking with high gain converter for photo voltaic applications

High gain DC/DC converter with continuous input current for renewable energy applications

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