A PWM Plus Phase-Shift Controlled Interleaved Isolated Boost Converter Based on Semiactive Quadrupler Rectifier for High Step-Up Applications

Lu, Yu; Xing, Yan; Wu, Hongfei

doi:10.1109/tie.2016.2544719

Cited by 31 publications

(16 citation statements)

References 22 publications

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“…In the case where galvanic isolation is required, high frequency isolated DC-DC converters become the viable choice. Current fed, isolated DC-DC converters are the favorite in this category due to their boosting capability and their low ripple input current; additionally, they utilize high-frequency transformers with a relatively simple structure [14][15][16]. In these topologies, the duty cycle is usually more than 0.5.…”

Section: Introductionmentioning

confidence: 99%

“…In these topologies, the duty cycle is usually more than 0.5. In [14][15][16], boosting was achieved through a transformer with a turn's ratio, and ZVS operation of the main switches was realized but the transformer's turns ratio needed to be high for sufficient voltage gain. In addition, the high turn's ratio will reflect on the voltage stress of the secondary side switches and diodes.…”

Section: Introductionmentioning

confidence: 99%

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An Isolated High Voltage Boost Current-Fed DC–DC Converter Based on 1:1 Transformer Multiplier Cells and ZVS Operation

2020

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This paper presents a high step up, current fed, interleaved, isolated DC-DC converter with voltage multipliers and ZVS (zero voltage switching). The converter provides zero voltage switching for all active switches and provides a high step up voltage gain that is suitable for very low voltage source applications, such as PV and other renewable sources. In addition, this converter allows the utilization of very low voltage stress switches and diodes. It reduces the current stress by interleaving the input current, and reduces the voltage stress by utilizing a half bridge based multiplier cell integrated configuration at the output voltage while providing high frequency galvanic isolation. The isolation is achieved through the use of 1:1 transformers which are easier to design, and the need for a high turns ratio is absent in this converter. The main theory of operation and the design guideline are presented, as is a laboratory prototype, all to validate the concept.Abstract: This paper presents a high step up, current fed, interleaved, isolated DC-DC converter with voltage multipliers and ZVS (zero voltage switching). The converter provides zero voltage switching for all active switches and provides a high step up voltage gain that is suitable for very low voltage source applications, such as PV and other renewable sources. In addition, this converter allows the utilization of very low voltage stress switches and diodes. It reduces the current stress by interleaving the input current, and reduces the voltage stress by utilizing a half bridge based multiplier cell integrated configuration at the output voltage while providing high frequency galvanic isolation. The isolation is achieved through the use of 1:1 transformers which are easier to design, and the need for a high turns ratio is absent in this converter. The main theory of operation and the design guideline are presented, as is a laboratory prototype, all to validate the concept.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Isolated High Voltage Boost Current-Fed DC–DC Converter Based on 1:1 Transformer Multiplier Cells and ZVS Operation

2020

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“…A new PWM controller was designed in [8] improves the efficient output power. Semi Active Quadrupler Rectifiers (SAQR) was intended in [9] to maximize converter efficiency. Boost converter operates at ZCS turn on and turn off.…”

Section: Introductionmentioning

confidence: 99%

An integrated bayes soft switching interleaved and sliding window PWM for DC-DC boost converter

Puviarasi¹,

Dhanasekaran²

2018

IJET

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In order to develop the efficient dc-dc boost converter in high output power application, an Integrated Bayes Interleaved and Sliding Window (IBI-SW) based PWM framework is proposed. Initially, the integration of interleaving and PWM improves the power factor correction in very high output power applications (photovoltaic panels) and near optimal voltage and current losses. Multiple phase shifts with soft switched Bayes interleaving technique maximizes the power generated in photovoltaic panels and the optimization of power conversion is achieved with sliding window based PWM that performs Maximum Power Point Tracking (MPPT) algorithm on the PV cells connected to the converter. The proposed dc-dc boost converter is efficiently tested on various load conditions for measuring the scalability of IBI-SW framework in multiple high power demanded application. When compared with traditional model, the simulation result of proposed IBI-SW based PWM framework demonstrates that the dc-dc converter improves the power generated in photovoltaic panels accurately and rapidly.

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“…A high step-up converter developed for photovoltaic (PV) module, wind turbine, or fuel cells is able to boost up a low voltage to a much higher level [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ], thus, which can accomplish power injecting into a DCbus [ 11 , 12 ]. Magnetic inductor is a main component that is much more important than any other devices in a high step-up converter.…”

Section: Introductionmentioning

confidence: 99%

“…An extra high gain can be achieved by means of voltage multipliers, which has been presented in [ 5 ]. Some researchers derive new topologies from boost-type configuration [ 6 , 7 ], while the literature [ 8 ] concentrates on interleaved operation and leakage energy recycling. In [ 9 ], an isolated step-up converter based on quasi Z-source is presented to lower the component count.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System

Shen

Liou

2017

Materials

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In this paper, a novel step-up converter is proposed, which has the particular features of single semiconductor switch, ultra-high conversion ratio, galvanic isolation, and easy control. Therefore, the proposed converter is suitable for the applications of fuel-cell power system. Coupled inductors and switched capacitors are incorporated in the converter to obtain an ultra-high voltage ratio that is much higher than that of a conventional high step-up converter. Even if the turns ratio of coupled inductor and duty ratio are only to be 1 and 0.5, respectively, the converter can readily achieve a voltage gain of up to 18. Owing to this outstanding performance, it can also be applied to any other low voltage source for voltage boosting. In the power stage, only one active switch is used to handle the converter operation. In addition, the leakage energy of the two couple inductors can be totally recycled without any snubber, which simplifies the control mechanism and improves the conversion efficiency. Magnetic material dominates the conversion performance of the converter. Different types of iron cores are discussed for the possibility to serve as a coupled inductor. A 200 W prototype with 400 V output voltage is built to validate the proposed converter. In measurement, it indicates that the highest efficiency can be up to 94%.

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A PWM Plus Phase-Shift Controlled Interleaved Isolated Boost Converter Based on Semiactive Quadrupler Rectifier for High Step-Up Applications

Cited by 31 publications

References 22 publications

An Isolated High Voltage Boost Current-Fed DC–DC Converter Based on 1:1 Transformer Multiplier Cells and ZVS Operation

An Isolated High Voltage Boost Current-Fed DC–DC Converter Based on 1:1 Transformer Multiplier Cells and ZVS Operation

An integrated bayes soft switching interleaved and sliding window PWM for DC-DC boost converter

Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System

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