High-voltage-gain DC-DC converter with three-winding coupled inductor

Liang, Wenjuan; Hu, Xuefeng; Chen, Hao; Wu, Guiyang; Zhang, Meng; Tan, Guodong

doi:10.23919/cjee.2019.000002

Cited by 16 publications

(10 citation statements)

References 27 publications

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“…5 (c)-(d), respectively. What stands from these graphs is that the UHFSC suffers from lower switch and diode voltage stress compared to the listed converters (except the output diode voltage stress of [30] for D<0.5) a feature that increases the converter efficiency due to the drop in the conduction loss of the switch and diodes. Additionally, it decreases converter cost because of the drop in the switch and diodes voltage rating.…”

Section: Comparisonmentioning

confidence: 99%

Single-Switch Resonant Soft-Switching Ultra-High Gain DC-DC Converter With Continuous Input Current

et al. 2022

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An ultra-high gain DC-DC converter with single-switch structure is introduced in this paper. Full soft-witching is provided by simultaneous use of quasi-resonant performance of one resonant tank and leakage inductance of a three-winding coupled inductor (CI). Adopting the secondary and tertiary windings of the CI in separated voltage multiplier cells enables the converter to provide ultra-high voltage gain. The reverse recovery problem is resolved thanks to the quasi zero current switching performance of nearly all diodes, especially output diode because of the second resonant tank, so the total electromagnetic interference is significantly reduced. Continuous input current with low ripple expands the application of the proposed converter, especially in renewable energy applications. Steady-state performance and design considerations of the introduced converter are analyzed thoroughly and compared with recently introduced converters to establish its merits. Experimental results of a 200 W prototype are given to validate its analysis and performance.INDEX TERMS DC-DC power converter, Coupled inductor, full soft-switching, single switch structure, ultra-high step-up converter.

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Section: Comparisonmentioning

confidence: 99%

Single-Switch Resonant Soft-Switching Ultra-High Gain DC-DC Converter With Continuous Input Current

et al. 2022

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“…However, the SSC has less active power MOSFET (s) as compared with the topologies in earlier work 15,17 . In comparison with the SSC, another high‐gain DC to DC topologies, 11,14,16,1822–24 have less voltage gain in all duty cycle values.…”

Section: Operational Principles Of the Suggested Step‐up Converter (Ssc)mentioning

confidence: 88%

“…Voltage gain of the suggested step‐up converter (SSC) and the topologies, 11,14–18,8,9,22–25 at CCM condition…”

Section: Operational Principles Of the Suggested Step‐up Converter (Ssc)mentioning

confidence: 99%

A single‐switch high step‐up Zero Current Switching DC‐DC converter based on three‐winding coupled inductor and voltage multiplier cells with quasi resonant operation

Abbasian

Farsijani

2022

Circuit Theory & Apps

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This paper presents a nonisolated high step-up soft switching DC/DC converter with continuous input and output energy, low input current ripple, and low voltage stress of semiconductors. In this topology, passive clamping circuits are used not only to recycle leakage energy but also to successfully alleviate voltage spikes on the active MOSFET. The leakage inductor, on the other hand, solves the output diode's reverse recovery problem effectively. Furthermore, output capacitors are connected in series to supply the output load, resulting in a smaller output capacitor volume. The suggested topology's operational theory, as well as steady-state analyses, is thoroughly explored. The proposed topology's voltage gain and switch stress are then compared with that of some high-gain topologies. After this, a prototype circuit with a 20 V input voltage, 340 V output voltage, and 200 W output power is designed to test the proposed topology's accuracy. K E Y W O R D Scoupled inductor, high step-up, ripple-free input current, zero current switching (ZCS)

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“…The estimated prices of devices are taken from Mouser or Digikey websites, which are summarized in Table III. the total cost of the converters in [13] and [25] much less than the rest due to the use of only one magnetic core. However, the input current with a high ripple is the most important drawback of these two converters, which limits their applications for renewable energy sources.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…Using two active switches along with the lack of soft-switching performance are two main drawbacks of this converter. Using a Three Winding CI (TWCI), an ultra-voltage gain is achieved in [23][24][25][26][27] as a function of three degrees of freedom, including duty cycle, secondary and tertiary windings turn ratios. Thus, the capability of voltage gain adjustment in a wider range is increased significantly.…”

Section: Introductionmentioning

confidence: 99%

A Novel Full Soft-Switching High-Gain DC/DC Converter Based on Three-Winding Coupled-Inductor

Hasanpour

Forouzesh

Siwakoti

et al. 2021

IEEE Trans. Power Electron.

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In this paper, a new non-isolated full soft-switching step-up DC/DC converter is introduced with a continuous input current for renewable energy applications. The use of a Three-Winding Coupled-Inductor (TWCI) along with a Voltage Multiplier (VM), enables the proposed converter to enhance the voltage gain with lower turns ratios and duty cycles. Also, a lossless regenerative passive clamp circuit is employed to limit the voltage stress across the power switch. In addition to Zero Current Switching (ZCS) performance at the turn-on instant of the power switch, the turn-off current value is also alleviated by adopting a Quasi-Resonance (QR) operation between the leakage inductor of the TWCI and middle capacitors. Moreover, the current of all diodes reaches zero with a slow slew rate, which leads to the elimination of the reverse recovery problem in the converter. Soft-switching of the power switch and all the diodes in the proposed converter significantly reduces the switching power dissipations. Therefore, the presented converter can provide a high voltage gain ratio with high efficiency. Steadystate analysis, comprehensive comparisons with other related converters, and design considerations are discussed in detail. Finally, a 160 W prototype with 200 V output voltage is demonstrated to justify the theoretical analysis.

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High-voltage-gain DC-DC converter with three-winding coupled inductor

Cited by 16 publications

References 27 publications

Single-Switch Resonant Soft-Switching Ultra-High Gain DC-DC Converter With Continuous Input Current

Single-Switch Resonant Soft-Switching Ultra-High Gain DC-DC Converter With Continuous Input Current

A single‐switch high step‐up Zero Current Switching DC‐DC converter based on three‐winding coupled inductor and voltage multiplier cells with quasi resonant operation

A Novel Full Soft-Switching High-Gain DC/DC Converter Based on Three-Winding Coupled-Inductor

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