A novel single switch high gain DC-DC converter employing coupled inductor and diode capacitor

Amirbande, Masoume; Yari, Keyvan; Forouzesh, Mojtaba; Baghramian, Alfred

doi:10.1109/pedstc.2016.7556855

Cited by 10 publications

(7 citation statements)

References 13 publications

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“…Moreover, it is clear that the small coupling-coefficients (k = 0.9, and k = 0.8) of the leakage inductor can decrease the voltage gain ratio. However, for low power rates of CI, this coefficient is a higher value, which has no significant effect on the conversion ratio, and then it can be set at one (k ≈ 1) in (17). Consequently, the ideal voltage conversion ratio of the proposed SQHSUCI is expressed as:…”

Section: A Voltage Conversion Ratio In Ccmmentioning

confidence: 99%

New Semiquadratic High Step-Up DC/DC Converter for Renewable Energy Applications

Hasanpour

Siwakoti

Mostaan

et al. 2021

IEEE Trans. Power Electron.

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In this paper, a new Semi-Quadratic High Step-Up Coupled-Inductor DC/DC Converter (SQHSUCI) with continuous input current and low voltage stress on semiconductor components is presented. The proposed structure employs a coupled-inductor (CI) and two power switches with simultaneous operation to achieve an extremely high voltage conversion ratio in a semiquadratic form. The voltage stress across the main power switch is clamped by two regenerative clamp capacitors. Here, the switching losses of both MOSFETs have been reduced by applying quasi-resonance operation of the circuit created by the leakage inductance of the CI along with the balancing and clamp capacitors. Therefore, by considering the high gain conversion ratio along with low voltage stress on components, the magnetic and semiconductors losses of the SQHSUCI are reduced significantly. Also, the energy stored in the leakage inductance of CI is recycled to the output capacitor. These features make the proposed SQHSUCI more suitable for industrial applications. The operation principle, steady-state and also comparisons with other related converters in Continuous Conduction Mode (CCM) are discussed in detail. Finally, experimental results of a prototype with 20 V input and 200 W-200 V output at 50 kHz switching frequency, verify the theoretical advantages of the proposed strategy.

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Section: A Voltage Conversion Ratio In Ccmmentioning

confidence: 99%

New Semiquadratic High Step-Up DC/DC Converter for Renewable Energy Applications

Hasanpour

Siwakoti

Mostaan

et al. 2021

IEEE Trans. Power Electron.

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“…These converters can provide high voltage levels with high efficiency at output side suitable for renewable energy applications [4]. Many topologies have been introduced for this purpose [5][6][7][8][9][10][11][12][13][14][15][16][17] such as 1) using coupled inductor, 2) using voltage multiplier, 3) using switched capacitor, 4) using cascaded techniques, and 5) switched inductor. Coupled inductor chooses to use in high gain by increasing inductor turns ratio.…”

Section: Introductionmentioning

confidence: 99%

A Single-switch Non-isolated High Gain DC/DC Converter for PV Applications

Mansour

Sarhan

El-Sabbe

et al. 2022

ERJ. Engineering Research Journal

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In this paper a single switch non-isolated high voltage gain DC/DC converter based on the conventional converter and a switched inductor is introduced. The operation and analysis of the converter in the continuous conduction mode (CCM) and discontinuous conduction mode (DCM), and voltage gain equation derivation are also presented. Also, design of the converter parameters (inductors and capacitor) is given. The proposed converter achieves continuous input current that suitable for PV applications. Also, it is characterized by simplicity of installation and eases of operation which decreases the power losses and gives high overall efficiency. A prototype is made in laboratory to validate the effectiveness of the proposed converter. The proposed converter operation is tested experimentally with static and dynamic load. Also, the performance of the proposed converter is examined with an open loop and closed loop controllers. In addition, a comparison between the proposed converter and other recent converters is also introduced to confirm the merits of this converter.

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“…These magnetic devices have a nonlinear complex nature and intensively affect the dynamic behaviour of the converter. Some of these types of high step-up topologies with VMs, and clamp circuit along with CL are proposed in [4][5][6][7] (as shown in Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

“… Circuit diagrams of some high step‐up DC–DC converters with VM, CL and regenerative clamp capacitor (a) Proposed in [4], (b) Proposed in [5], (c) Proposed in [6], (d) Proposed in[7]…”

Section: Introductionmentioning

confidence: 99%

Reduced‐order small signal modelling of high‐order high step‐up converters with clamp circuit and voltage multiplier cell

Hasanpour

Baghramian

Mojallali

2019

IET Power Electronics

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Generally, the modelling of high step-up converters with a large number of passive components consisting of inductors, coupled-inductors (CL) and capacitors is very complex. Recently, to further increase the voltage gain in high step-up converters in a simple and low-cost manner, voltage multiplier (VM) circuits have been increasingly used. Also, to reduce the switch voltage spike, clamp circuits are applied. This leads to an increase in the order of systems and operational modes as well. Thus, for simpler modelling and reducing the state variables, the use of reduced-order techniques are required. A general structure for small signal modelling of such converters including passive clamp, CL and VM circuits is presented. For this purpose, an example of these types of converters is selected. At first, a full-order model of this high-order converter is derived using the state-space averaging method. Then, two reduced-order models of the converter are derived and then compared with the full-order model. Also, the small signal and low frequency behaviour is evaluated. In addition, the impact of the parameter variations on the frequency response and stability margin is investigated. Finally, experimental results based on laboratory prototype are presented to verify the validity of the theoretical analysis.

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A novel single switch high gain DC-DC converter employing coupled inductor and diode capacitor

Cited by 10 publications

References 13 publications

New Semiquadratic High Step-Up DC/DC Converter for Renewable Energy Applications

New Semiquadratic High Step-Up DC/DC Converter for Renewable Energy Applications

A Single-switch Non-isolated High Gain DC/DC Converter for PV Applications

Reduced‐order small signal modelling of high‐order high step‐up converters with clamp circuit and voltage multiplier cell

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