Modular DC‐DC converter with reduced current ripple and low voltage stress suitable for high voltage applications

Babalou, Milad; Dezhbord, Morteza; Maalandish, Mohammad; Hosseini, Seyed Hossein; Islam, Md. Rabiul; Torkaman, Hossein

doi:10.1002/cta.3372

Cited by 9 publications

(3 citation statements)

References 34 publications

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“…However, the high number of switches, complex control, and high cost are among the disadvantages of these converters [15]. Using a voltage multiplier circuit in low-frequency rectifiers is a solution for increasing the output voltage [26], [27]. Applying this technique to high-frequency, isolated DC-DC converters for high-voltage applications (up to a few kV), such as traveling wave tube amplifiers (TWTA), causes transmission wave amplifiers.…”

Section: Introductionmentioning

confidence: 99%

Discontinuous conduction mode approach of ultra-lift DC-DC converter based on three windings coupled inductor

Hasanzadeh

Asadi

Sutikno

2023

IJPEDS

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These days, DC-DC boost converters play an essential role in a variety of applications. Therefore, a variety of techniques were proposed in the literature to achieve the highest voltage gain. A large number of passive elements are typically used in high-voltage DC-DC converters. Increasing the order of the system would make modeling and controlling the output voltage of the converter more complex. This paper examines an ultra-lift DC–DC converter using a three-winding inductor and a super-lift construction in discontinuous conduction mode (DCM). This converter provides substantial voltage gain by utilizing the three-winding coupling inductor topology without increasing the duty cycle or passive circuit parts. Because the DCM operation mode occurs in the converter, it is necessary to investigate and analyze it. The DCM operation mode of an Ultra-Lift converter is examined in this study, and then simulation results are shown to validate the equations.

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Section: Introductionmentioning

confidence: 99%

Discontinuous conduction mode approach of ultra-lift DC-DC converter based on three windings coupled inductor

Hasanzadeh

Asadi

Sutikno

2023

IJPEDS

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“…erefore, a high cost and complexity and also low efficiency are resulted. e magnetic coupling technique for voltage lifting can be implemented by transformers or coupled inductors [11,12]. Transformer-based DC-DC converters use isolated or built-in transformers for achieving electrical isolation.…”

Section: Introductionmentioning

confidence: 99%

A Single Switch High Step-Up DC-DC Converter Based on Tri-Winding Coupled Inductor for Renewable Energy Applications

Hosseinzadehlish

Hashemzadeh

Pourjafar

et al. 2022

International Transactions on Electrical Energy Systems

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This article introduces a novel nonisolated single-switch high step-up DC-DC converter using a tri-winding coupled inductor (TWCL) for renewable energy applications such as PV systems. Also, the voltage multiplier cell (VMC) is used to attain a high voltage gain. The used VMC acts as a passive clamp circuit and reduces the voltage stress across the power switch. So, a low voltage-rated power switch can be used in the presented converter. The suggested topology uses only one power switch with low on-state resistance (RDS-ON), which leads to a simple control circuit and decreases the conduction losses. Highefficiency, operating with low duty cycle, low peak voltage over semiconductor elements, low turns ratio, the number of the coupled inductor, and high voltage conversion ratio are the significant benefits of the recommended DC-DC converter. To show the achievement of the presented structure, operational mode principles, steady-state, efficiency calculations, and comparison results are provided. Finally, a 120 W experimental prototype with 200 V output voltage and 50 kHz switching frequency is built to prove the usefulness of the suggested high step-up converter. The efficiency is measured 92.11% at rated power.

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“…In [38], a high step-up three-port converter using CI has been presented which performs high input current ripple. To minimize the input current ripple, [39] utilized the interleaving technique in its modular structure. However, using several CIs in this converter increases its volume.…”

Section: Introductionmentioning

confidence: 99%

An extendable soft‐switched high step‐up converter with near zero‐ripple input current suitable for fuel cell‐powered applications

Dezhbord

Babalou

Mohseni

et al. 2022

IET Renewable Power Gen

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In this paper, an extendable high step‐up topology is presented for the low input voltage applications, that is, fuel cell (FC) source. The proposed converter eliminates the pulsating input current and reduces the high input current ripple. Thus, the lifetime of this non‐linear source and energy flow is significantly improved. The high output voltage is achieved by using voltage multiplier cells (VMC) and a coupled inductor (CI) with reduced elements. Moreover, an auxiliary circuit is applied due to restoring the energy of leakage inductance in the CI. Therefore, not only all power switching devices are turned on under zero voltage switching (ZVS) but also the input current ripple is remarkably reduced to zero. Furthermore, normalized semiconductors’ voltage stresses are diminished. The reverse recovery problem of diodes and their turn‐off power losses at high frequencies are alleviated owing to their zero current switching (ZCS) turn‐off. In this paper, the performance of the proposed structure is investigated and compared with the traditional converters considering their voltage gain and voltage stress. Eventually, a 500‐W prototype of the proposed converter is built and tested to validate mathematical analyses.

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Modular DC‐DC converter with reduced current ripple and low voltage stress suitable for high voltage applications

Cited by 9 publications

References 34 publications

Discontinuous conduction mode approach of ultra-lift DC-DC converter based on three windings coupled inductor

Discontinuous conduction mode approach of ultra-lift DC-DC converter based on three windings coupled inductor

A Single Switch High Step-Up DC-DC Converter Based on Tri-Winding Coupled Inductor for Renewable Energy Applications

An extendable soft‐switched high step‐up converter with near zero‐ripple input current suitable for fuel cell‐powered applications

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