High boost ratio hybrid transformer DC-DC converter for photovoltaic module applications

Gu, Bin; Dominic, Jason; Lai, Jih-Sheng; Zhao, Zheng; Liu, Chuang

doi:10.1109/apec.2012.6165880

Cited by 24 publications

(18 citation statements)

References 19 publications

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“…This topology has many advantageous features such as high frequency operation capability, low input/output current ripple, low ON‐state voltage drops, and bidirectional power flow management. Other possibilities include converters that use the voltage multiplier cells in which the voltage gain is extended, and the switch voltage stress is reduced by the winding‐cross‐coupled inductors (WCCIs) and the voltage multiplier cells, switched capacitors, and coupled inductors for their demanded voltage boosting . These converters can provide higher voltage gains than the conventional DC‐DC boost converter but at the expense of more components, especially switches and their associated driving circuitries.…”

Section: Introductionmentioning

confidence: 99%

“…Other possibilities include converters that use the voltage multiplier cells [13][14][15] in which the voltage gain is extended, and the switch voltage stress is reduced by the winding-crosscoupled inductors (WCCIs) and the voltage multiplier cells, switched capacitors, 16 and coupled inductors for their demanded voltage boosting. [17][18][19] These converters can provide higher voltage gains than the conventional DC-DC boost converter but at the expense of more components, especially switches and their associated driving circuitries. Higher boost converters are therefore generally less efficient, in addition to high voltage stresses and conduction losses experienced by their switches.…”

Section: Introductionmentioning

confidence: 99%

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Design and implementation of a new high step‐up DC‐DC converter for renewable applications

Sani

Mohammadi

Banaei

et al. 2019

Circuit Theory & Apps

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Summary In this paper, a new structure for a DC‐DC boost converter is proposed. The presented converter provides a high voltage transfer gain with lower duty cycle. Low current and low voltage stress on the switch, enlarged area of operating in continuous conduction mode (CCM), reduced size of the inductors, and the input filter are the main advantages of the proposed converter. The high voltage transfer gain with low number of elements has made it suitable to implement. Hence, using only one switch has made the control of the proposed converter easy. Besides, decreased switching losses and higher efficiency are obtained. The proposed structure is a combination of the Luo converter and a booster unit, which its analysis is studied in three modes, CCM, boundary conduction mode (BCM), and discontinuous conduction mode (DCM). Furthermore, in order to validate the analysis and feasibility of the proposed converter, the experimental results are developed on a low power prototype.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and implementation of a new high step‐up DC‐DC converter for renewable applications

Sani

Mohammadi

Banaei

et al. 2019

Circuit Theory & Apps

View full text Add to dashboard Cite

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“…10 A high-voltage gain boost converter has been designed for 220 V output voltage and 160 W output power with 20 to 45 V input voltage having peak efficiency of 97.4% at 35 V input voltage. 11 A 380 V, 3 kW DC distribution system has been developed using the high voltage gain boost converter for RPGs. 12 An integrated resonant boost converter has been reported with PV application for 250 W load power and having efficiency of 96.8%.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of fuel cell and photovoltaic based 110 V DC microgrid using hydrogen energy storage

2019

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A 110 V DC system has been designed for photovoltaic and fuel cell generators to operate DC loads such as LED lights, fans, laptop, and mobile phone charging in a DC microgrid. As the output characteristics of photovoltaic and fuel cell generators vary according to the operating conditions and connected load, the designing of the DC‐DC converter ensures that a stable DC voltage is available to the load under varying input voltage. A boost converter (with output power of 500 W) has therefore been fabricated to generate a stable 110 V output voltage for a widely varying input voltage (30‐85 V), which utilizes photovoltaic (750 Wp) and a proton exchange membrane fuel cell (1 kW) power generators. The DC‐DC converter is designed to use either a silicon or silicon carbide power MOSFET by a suitably modified circuit, both are operated at 20 kHz switching frequency. The maximum converter efficiencies with silicon and silicon carbide MOSFETs are 95.7% and 97.8%, respectively. It is shown that the DC‐DC converter provides a stable operation with variations in operating conditions of photovoltaic and fuel cell generators and is well suited for application in a 110 V DC microgrid and Railways load applications. A feasibility study is performed for determining the sizes of photovoltaic and fuel cell generators to meet the Railways carriage load demand and found to be 5 kW photovoltaic and 5 kW fuel cell.

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“…These structures are not very popular because of the cost of the construction and design of the control system. In [12,13], a method for achieving higher transmission voltage gain has been presented by using series connection of n numbers of sequential cells of the conventional boost dc-dc converters and has been used in [14,15]. However, in this method, controller design to achieve higher voltage gain is more complex, because the voltage stress can disrupt the switching.…”

Section: Introductionmentioning

confidence: 99%

“…In [14], a transformer-less boost structure has been presented with low switch voltage stress. In [15], by adding a transformer to the conventional boost dc-dc converter has been presented and utilized as well as for photovoltaic applications. In this method, magnitude, cost and current of the switches are increased.…”

Section: Introductionmentioning

confidence: 99%

A new DC-DC converter based on voltage-lift technique

Shahir

Babaei

Sabahi

et al. 2015

Int. Trans. Electr. Energ. Syst.

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In this paper, a new boost dc-dc converter based on voltage lift (VL) technique is proposed. There is any need for transformer, coupled inductances and sequential connections in the proposed boost converter topology. In this paper, the operating of proposed boost dc-dc converter in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) was discussed, and the current and voltage equations of the inductors and capacitors were obtained with details. So, the value of critical inductance and the operating of the proposed dc-dc converter between CCM and DCM were presented. The switching currents of each switch were analyzed. The switches, diodes, inductors and capacitors root-mean-square (RMS) current stresses were discussed. Finally, the correct performance of the proposed converter based on presented theoretical issues is verified by using simulation results on EMTDC/PSCAD software program and experimental results by using laboratory prototype. Figure 11. Current simulation results of the switches S 1 and S 2 in the proposed boost dc-dc converter; (a) in CCM; (b) critical operating mode; (c) in DCM.

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High boost ratio hybrid transformer DC-DC converter for photovoltaic module applications

Cited by 24 publications

References 19 publications

Design and implementation of a new high step‐up DC‐DC converter for renewable applications

Design and implementation of a new high step‐up DC‐DC converter for renewable applications

Design and analysis of fuel cell and photovoltaic based 110 V DC microgrid using hydrogen energy storage

A new DC-DC converter based on voltage-lift technique

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