High Step-Up DC–DC Converter With Zero Voltage Switching and Low Input Current Ripple

Zheng, Yifei; Brown, Benjamin Y.; Xie, Wenhao; Li, Shouxiang; Smedley, K.M.

doi:10.1109/tpel.2020.2968613

Cited by 62 publications

(27 citation statements)

References 45 publications

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“…40,41 Further, a high gain converter with low voltage stresses of the semiconductors using voltage multiplier and coupled inductor based is presented. 42 For renewable sources applications, a quadratic boost converter with coupled inductor and voltage multiplier circuit is developed in Mirzaee et al 43 This converter gives the higher voltage conversion with reduced voltage stresses on the active switch. The active clamp provides the additional feature of soft-switching to the converter.…”

Section: F I G U R E 2 Classification Voltage Boosting Techniquesmentioning

confidence: 99%

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A non‐isolated high gain DC‐DC converter with coupled‐inductor and built‐in transformer for grid‐connected photovoltaic systems

Kokkonda

Kulkarni

2022

Circuit Theory & Apps

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A non‐isolated high gain DC‐DC converter based on coupled‐inductor (CI) and built‐in transformer (BT) with voltage multiplier cell (VMC) is presented for renewable energy applications, especially solar photovoltaic (PV) sources. In this circuit, the BT used in addition to the coupled inductor improves the design flexibility. It enhances the voltage gain with the simultaneous action of CI and BT, compared to converters that include BT or CI. Also, the formation of voltage multiplier cell with the series combination of secondary windings of the CI and BT, switched capacitors and the diodes give an extra voltage gain to the converter. This converter structure adds the turns ratios in voltage gain expression and does not entail a reverse recovery issue with the leakage energy. The active clamped circuit recycles this leakage energy to alleviate the switching stresses. Consequently, active clamping provides add‐on features like improved converter efficiency with ZVS operation and further voltage gain. The converter principle of operation and the design procedure of all components are presented. Finally, a 400 W laboratory prototype with input voltage range 24–40 V and output 400 V is developed and illustrated the effectiveness of the converter at a switching frequency of 100 kHz.

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Section: F I G U R E 2 Classification Voltage Boosting Techniquesmentioning

confidence: 99%

“…Compared to hard switching, the improvement in converter efficiency is proportional to the switching frequency achieved in soft switching‐based converter topologies 40,41 . Further, a high gain converter with low voltage stresses of the semiconductors using voltage multiplier and coupled inductor based is presented 42 …”

Section: Introductionmentioning

confidence: 99%

A non‐isolated high gain DC‐DC converter with coupled‐inductor and built‐in transformer for grid‐connected photovoltaic systems

Kokkonda

Kulkarni

2022

Circuit Theory & Apps

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“…The inductor's energy is utilized to charge the capacitors in series or parallel while the switch is turned off, but when the switch is turned on, the capacitors are combined in series to supply the load. However, in high-step-up applications, the component count could be quite high [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Improved auxiliary inductive coil connectors in DC boost converters with high voltage gain for renewable energy source applications

Bilsalam

Bizon

Thounthong

2022

IJPEDS

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<span lang="EN-US">This study investigates an auxiliary technique for the integration of inductive coil connectors (AIIC) within a single switched DC converter with high voltage gain for renewable energy source applications. The aim is to develop and improve the rate of voltage gain for both coils by using inductive coil connectors (coupling inductance) on the input side that goes through the ratio operator of both inductive coils of the high frequency transformer by having the prototype power circuit operate at a switching frequency 80 kHz. Experimental results show that the output power is at 125 W, output voltage is at 325 V, and input voltage is at 36 V. Furthermore, the duration of change of critical waves of the duty condition was analyzed to confirm that the results were consistent with the proposed technique.</span>

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“…The boost converter with coupled inductor works with the proper duty cycle and has another factor for controlling the voltage gain, which is the turns ratio of the coupled inductor. 19,20 Therefore, a high-voltage gain can be easily possible. In addition, low-voltage stress of power switches is another advantage of these topologies.…”

Section: Introductionmentioning

confidence: 99%

A novel soft‐switched interleaved high step‐up DC–DC converter for high‐efficiency conversion

Sadighi

Afjei

Salemnia

2021

Circuit Theory & Apps

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The present study aims to present a new interleaved soft-switched high stepup DC-DC converter, which is suitable for renewable energy sources, by integrating built-in transformer. A high conversion ratio is achieved by adjusting the turns ratio of the built-in transformer and duty cycle. The proposed converter uses active clamped circuit, which provides zero-voltage switching (ZVS) and a zero-current switching (ZCS) operation for all switches and diodes, respectively. Therefore, the losses caused by reverse recovery are considerably alleviated by providing ZCS condition in the diodes. The proposed structure has some advantages such as low-voltage stress across power switches, very low-input current ripple, fewer components, and lower cost.The MOSFET with low drain-source resistance can be used due to the lowvoltage stress, which could reduce conduction losses. Furthermore, a 500-W, 48-V input to 380-V output laboratory prototype is built and tested to validate the performance of the proposed topology.

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High Step-Up DC–DC Converter With Zero Voltage Switching and Low Input Current Ripple

Cited by 62 publications

References 45 publications

A non‐isolated high gain DC‐DC converter with coupled‐inductor and built‐in transformer for grid‐connected photovoltaic systems

A non‐isolated high gain DC‐DC converter with coupled‐inductor and built‐in transformer for grid‐connected photovoltaic systems

Improved auxiliary inductive coil connectors in DC boost converters with high voltage gain for renewable energy source applications

A novel soft‐switched interleaved high step‐up DC–DC converter for high‐efficiency conversion

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