New interleaved high step‐up converter based on a voltage multiplier cell mixed with magnetic devices

Nouri, Tohid; Shaneh, Mahdi

doi:10.1049/iet-pel.2020.0591

Cited by 6 publications

(10 citation statements)

References 43 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…V o of the recommended topology is obtained 390 V. erefore, the experimental voltage conversion ratio is obtained equal to 15.6. It should be noticed that the theoretical voltage gain is achieved at 16 for N 1 and D 0.6. e voltages of capacitors C 1 and C 2 are measured at 60 V and 61 V. Also, according to equation (21), the theoretical values of V C1 and V C2 are equal. e voltage of capacitor C 3 is shown in Figure 10(c).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Design and Analysis of a New Coupled Inductor-Based Interleaved High Step-Up DC-DC Converter for Renewable Energy Applications

Hashemzadeh

Babaei

Hosseini

et al. 2022

International Transactions on Electrical Energy Systems

View full text Add to dashboard Cite

In this paper, a novel nonisolated interleaved high step-up DC-DC converter is proposed based on the coupled inductor and voltage multiplier cell (VMC) methods. Due to the interleaved structure, its input current ripple is low. The low input current ripple and also high power efficiency make the proposed converter suitable for renewable energy applications like photovoltaic (PV) and fuel cell (FC) power generation systems. The windings of the coupled inductors are combined with VMCs to further increase the output voltage with a low power switch’s duty cycle. This combination also leads to obtaining a flexible voltage gain that can be adjusted by coupled inductors’ turns ratio and power switches’ duty cycle. The voltage peaks over semiconductors are much lower than the output voltage. Therefore, low-rated semiconductors can be used for the implementation of the proposed converter, which can reduce the cost and volume. Generally, high voltage gain, low voltage, current stress of power switches, low input current ripple, high efficiency, common ground between the input and output ports, and a low number of elements are the main benefits of the suggested structure. The operation principle, steady-state analysis, and comparison with other converters are presented to show the advantages of the suggested converter. Also, a prototype is built, and the experimental results are presented to prove the theoretical analysis. This prototype is implemented with 200 W rated power, 25 V∼400 V voltage conversion, and 50 kHz switching frequency. Additionally, the efficiency is measured at 95.3% at the rated power.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Interleaved converters using coupled inductors and built-in transformers are suggested in Refs. [21,22], for photovoltaic systems. e advantages of these topologies are high voltage gain, low peak voltage of power switches, and low input current ripple.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a New Coupled Inductor-Based Interleaved High Step-Up DC-DC Converter for Renewable Energy Applications

Hashemzadeh

Babaei

Hosseini

et al. 2022

International Transactions on Electrical Energy Systems

View full text Add to dashboard Cite

show abstract

“…Where Δt 4 is achieved by Equation (11). Also, the snubber capacitors are obtained by Equation (41).…”

Section: Design Of Capacitorsmentioning

confidence: 99%

“…Same problems exist in [8] along with using four power switches which degrades the power density and cost. In [11,12] interleaved high step-up converters using coupled inductors and voltage multiplying cells are introduced. Although in these converters the voltage gain is high, hard switching operation degrades the efficiency.…”

Section: Introductionmentioning

confidence: 99%

Soft‐switching non‐isolated high step‐up three‐level boost converter using single magnetic element

Jazi

Fekri

Keshani

et al. 2021

IET Power Electronics

View full text Add to dashboard Cite

Here, a soft switched three-level boost converter with high voltage gain is proposed which is suitable for high step-up applications with wide output power range. In this converter, a ZVT auxiliary circuit is used which provides soft switching in a wide range of output power independent of load variation. Utilizing coupled-inductors with one magnetic core removes extra auxiliary core in the soft switching circuit and provides high voltage gain in conjunction with size reduction. Also, the secondary and tertiary leakage inductances of the coupled-inductors minimize the reverse recovery problem of the output diodes. Due to its three-level structure, it has very low voltage stress over semiconductor elements in comparison to the existing interleaved structures, resulting in using MOSFETs with low on-resistance and thus lower conduction losses and cost. Operating modes as well as analytical analysis of the proposed converter are discussed. Finally, in order to validate the proposed converter performance, experimental results from a 200-W laboratory prototype are presented.How to cite this article: Jazi, H.M., Fekri, M., Keshani, M., et al.: Soft-switching non-isolated high step-up three-level boost converter using single magnetic element.

show abstract

“…To use high voltage gain converters at high power, minimize the input current ripple, and increase reliability, interleaved converters have been introduced. e abovementioned structures (i.e., SC, CI, and VMC) are adopted to interleaved topologies to achieve high step-up voltage gain [27][28][29][30][31][32][33][34][35][36][37][38][39]. An interleaved boost converter with a bi-fold Dickson voltage multiplier is presented in [40], in which several diodes and capacitors are employed to increase the overall voltage gain.…”

Section: Introductionmentioning

confidence: 99%

Design of an Interleaved High Step-Up DC-DC Converter with Multiple Magnetic Devices for Renewable Energy Systems Applications

Jouzdani

Shaneh

Nouri

2022

International Transactions on Electrical Energy Systems

Self Cite

View full text Add to dashboard Cite

An interleaved high step-up converter topology based on the coupled inductor (CI) and built-in transformer (BIT) is proposed in this study to provide high step-up voltage gain and high efficiency with a low number of power electronic components for renewable energy applications. The voltage gain is increased by both of the turns’ ratio of CI and BIT, so there is no need to extend duty ratio to obtain high voltage gain. The proposed topology is much more flexible than those with only either CI or BIT. Moreover, the voltage stress across semiconductor devices can be relatively decreased by adjusting the turns’ ratio of the CI and BIT. In addition, the input current ripple can be reduced when the interleaved structure is applied at the input of this converter. Furthermore, turned-OFF and turned-ON zero current switching (ZCS) conditions for the diodes and power MOSFETs are achieved, respectively, thanks to the leakage inductances of the magnetic devices. Hence, due to the control of the falling current rate of the diodes by the leakage inductances, reverse recovery problem is alleviated. Moreover, the energy of the leakage inductances is recycled by the clamp capacitors avoiding high spikes across MOSFETs. As a result, according to the abovementioned advantages of the proposed converter, MOSFETs with low ON-state resistance and diodes with low forward voltage drop can be used to decrease the conduction losses. A 600 W laboratory prototype with 27–400 V voltage conversion at switching frequency 50 kHz is built to verify the performance of the proposed converter. Experimental results confirm the theoretical analysis. The efficiency reaches to 94.6% at full load which is close to the calculated of 95.8%.

show abstract

New interleaved high step‐up converter based on a voltage multiplier cell mixed with magnetic devices

Cited by 6 publications

References 43 publications

Design and Analysis of a New Coupled Inductor-Based Interleaved High Step-Up DC-DC Converter for Renewable Energy Applications

Design and Analysis of a New Coupled Inductor-Based Interleaved High Step-Up DC-DC Converter for Renewable Energy Applications

Soft‐switching non‐isolated high step‐up three‐level boost converter using single magnetic element

Design of an Interleaved High Step-Up DC-DC Converter with Multiple Magnetic Devices for Renewable Energy Systems Applications

Contact Info

Product

Resources

About