High Step-Up Quadratic Impedance Source DC-DC Converter Based on Coupled Inductor

Alizadeh, Darioush; Babaei, Ebrahim; Sabahi, Mehran

doi:10.1109/jestpe.2022.3207033

Cited by 16 publications

(10 citation statements)

References 26 publications

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“…Furthermore, it reduces the voltage stress on the power switch, which is an issue with traditional quadratic boost converters. In the literature ref [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52], many DC/DC converters based on quadratic boost converters and modified quadratic boost converters have been proposed to inhibit the dominant constraints in conventional boost converters. A quadratic following boost converter (QFBC) is presented in [38].…”

Section: Symmetric and Non-symmetric Convertersmentioning

confidence: 99%

Voltage Lifting Techniques for Non-isolated DC/DC Converters

Al-Khaldi¹,

Elkhateb²,

Laverty³

2023

Preprint

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This paper presents a comprehensive review that highlights the characteristics of non-isolated step-up converters based on high boost voltage lifting techniques. The paper categorises the high boost techniques: multistage/multilevel, switched capacitor, voltage multiplier, voltage lift, switched inductor, and magnetic coupling. The paper also discusses in detail the advantages and disadvantages for each category such as cost, complexity, power density, reliability and efficiency. The number of passive and active components, voltage gain, voltage stress, switching frequency, efficiency and power rating are also compared. Although the paper considers coupling inductors in the context of the non-isolated converter, the focus of the entire article is on the non-isolated high voltage step-up techniques. The key contribution in this paper is the review of high boosting techniques rather than the DC /DC converters. This allows divergence of new ideas and new power converters that will help provide highly efficient and flexible power converters for several applications where the sending end voltage is very low as photovoltaic systems. In addition, many applications and control techniques of DC/DC converters are summarised in this paper.

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Section: Symmetric and Non-symmetric Convertersmentioning

confidence: 99%

Voltage Lifting Techniques for Non-isolated DC/DC Converters

Al-Khaldi¹,

Elkhateb²,

Laverty³

2023

Preprint

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“…In recent years, the requirement for direct current (DC)-DC converters has increased significantly, especially in applications that necessitate a significant increase in voltage [1,2]. One of the most common uses for these DC-DC converters is in renewable energy sources, including solar cells, fuel cells, and electric vehicles.…”

Section: Introductionmentioning

confidence: 99%

An interleaved high step‐up DC–DC converter based on coupled‐inductor

Karimi,

Babaei,

Karimi

et al. 2024

IET Power Electronics

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This paper proposes an interleaved coupled‐inductor high step‐up direct current (DC)–DC converter. This converter uses a coupled inductor (CI), a voltage multiplier (VM) integrated with a regenerative passive lossless clamp circuit to enhance the voltage conversion ratio. The interleaved structure is used as the front stage of the proposed converter to reduce the input current ripple. The proposed converter has benefits such as low voltage stress across semiconductor elements, high voltage gains, and continuous input current, which makes it suitable for applications such as renewable energy sources. In addition, to reduce the negative effects of leakage inductance and recover the energy stored in it, a diode‐capacitor clamp circuit is used. Moreover, a comprehensive analysis has been done on the details of the performance of the proposed converter in different operation modes. Also, its design, the voltage and current equations of all the elements, and efficiency analysis are obtained. In addition, a comprehensive comparison has been made with some similar converters. The experimental results of a prototype with 260 W 96.9% is presented to validate the performance of the proposed converter.

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“…[1][2][3]. Among DC-DC power converters, stepup/down DC-DC converters are the most popular choices for many applications, such as regulating the variable voltage of intermittent renewable energy sources (RESs) [4][5][6]. To process the energy, several step-up/down converters such as Zeta, SEPIC, and CUK have been introduced for such applications [7].…”

Section: Introductionmentioning

confidence: 99%

An extendable step‐up/down DC–DC converter based on switched capacitors

Pourali

Babaei

Alizadeh

et al. 2023

IET Power Electronics

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In this paper, a new step‐up/down DC–DC converter based on switched capacitors (SCs) is proposed. This converter can provide highly variable voltage gain and merits like decreased voltage stress on power switches and capacitors. Besides, due to its modular configuration obtained by utilizing switched‐capacitor cells, it can generate high voltage gain in low‐duty cycles. In addition, the proposed converter has a continuous input current. The theoretical analysis of the proposed converter has been done, and its operating modes have been investigated. In addition, the proposed structure has been compared with some existing converters to highlight the advantages and disadvantages. Finally, to confirm the claims and theoretical results, a laboratory sample of the converter for 200 W has been implemented, with an efficiency of 91.34%.

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High Step-Up Quadratic Impedance Source DC-DC Converter Based on Coupled Inductor

Cited by 16 publications

References 26 publications

Voltage Lifting Techniques for Non-isolated DC/DC Converters

Voltage Lifting Techniques for Non-isolated DC/DC Converters

An interleaved high step‐up DC–DC converter based on coupled‐inductor

An extendable step‐up/down DC–DC converter based on switched capacitors

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