A DC–DC Converter With High Voltage Gain and Two Input Boost Stages

Prabhala, Venkata Anand Kishore; Fajri, Poria; Gouribhatla, Venkat Sai Prasad; Baddipadiga, Bhanu Prashant; Ferdowsi, Mehdi

doi:10.1109/tpel.2015.2476377

Cited by 303 publications

(262 citation statements)

References 21 publications

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“…The characteristics of the proposed converter and the presented high voltage gain converters in other works 2,9,[22][23][24]27,30 are summarized in Table 2. The comparison between the mentioned converters in Table 2 is done from different aspects that include voltage gain, the normalized voltage stresses on switches (V S /V o ) and diodes (V D /V o ), number of switches (N S ), diodes (N D ), inductors (N I ), and capacitors (N C ).…”

Section: Performance Comparisonmentioning

confidence: 99%

“…Furthermore, hybrid switchedinductor-based topologies for boost converters are presented in Axelrod et al 25 and Tang et al 26 In Chen et al, 27 a family of high voltage gain converters based on switched-capacitor-inductor is presented. Transformer-less high step-up DC-DC converter with voltage multiplier cells (VMCs) are presented in Prabhala et al 30 The more number of cells in these converters expands, the output voltage of the converters would increase. Despite the fact that the conversion ratios of the aforementioned converters and their efficiencies are considerable, also, they are designed transformer-less and without coupled inductors in their structures; thus, the drawbacks of utilizing transformers to increase the output voltage are avoided consequently and to achieve higher voltage gains, multiple cells are needed, which make these topologies to be more complicated and the number of components will increase.…”

Section: Introductionmentioning

confidence: 99%

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Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

Saadatizadeh

Heris

Babaei

et al. 2019

Circuit Theory & Apps

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In this paper, an interleaved DC-DC step-up boost converter with high voltage conversion ratio and low voltage stresses on switches and diodes is proposed.The proposed converter has low average current passing through the diodes and switches and low input current ripple as a feature of interleaved converters. The voltage gain of the proposed converter can be increased by adding more diode-capacitor modules; therefore, the proposed converter has expandable structure. In addition, by implementing more diode-capacitor modules, the switching stresses would be more decreased. Also, to evaluate the performance of the proposed converter, it is compared with other similar presented circuits in the literature. The proposed converter is not only able to provide higher voltage gain but also has lower voltage stresses on switches and diodes.Consequently, switches and diodes with low voltage ratings can be selected.Theoretical analysis is provided in this study for each operation mode and the average current through the switches, diodes and inductors, voltage stresses on switches and diodes, voltage gain, and input current ripple are calculated. Finally, to demonstrate the accuracy performance of the proposed converter, a 450-W prototype is implemented practically.KEYWORDS diode-capacitor, high voltage gain, interleaved DC-DC converter, low input current ripple, low voltage stresses on switches

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Section: Performance Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

Saadatizadeh

Heris

Babaei

et al. 2019

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…Thus dc-dc converters have attracted the attention of many due to its capability of enhancing the voltage level and its tendency to act as an interface between low input source and distribution DC bus systems [1]- [4]. Currently, telecom centers, data centers and micro grids are among the emerging examples of dc distribution system [5]- [7].It also finds its application in the HID lamps in automobiles, X-Ray power generators, Gas Discharge Tubes(GDT), UPS, etc., For achieving high voltage gains, conventional boost and buck-boost converters requires high duty ratios which results in high current stress in the switch thereby efficiency also reduces [8]- [11].…”

Section: Introductionmentioning

confidence: 99%

Voltage Boosting using Modified Dickson Charge Pump VM Circuit

Shobana¹

2018

IJRASET

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I. INTRODUCTIONWith the increase in energy demand, the renewable energy systems have gained popularity in both residential and commercial areas. Thus dc-dc converters have attracted the attention of many due to its capability of enhancing the voltage level and its tendency to act as an interface between low input source and distribution DC bus systems[1]- [4]. Currently, telecom centers, data centers and micro grids are among the emerging examples of dc distribution system[5]- [7].It also finds its application in the HID lamps in automobiles, X-Ray power generators, Gas Discharge Tubes(GDT), UPS, etc., For achieving high voltage gains, conventional boost and buck-boost converters requires high duty ratios which results in high current stress in the switch thereby efficiency also reduces[8]- [11]. Due to the effect of power switches, rectifier diodes, and the equivalent series resistance of inductors and capacitors the step-up voltage gain is limited. Moreover, the extremely high duty-ratio operation will result in a serious reverse-recovery problem. Typically high-frequency transformers or coupled inductors are used to achieve high-voltage conversion ratios[12]- [18].But the transformer design is complicated and the leakage inductances increase for achieving larger gains, as it requires higher number of winding turns. This leads to voltage spikes across the switches and voltage clamping techniques are required to limit voltage stresses on the switches. Consequently, it makes the design more complicated. Villard voltage-doubler used to achieve high gain is a combination of the clamper and peak holder circuit [19]. It converts an input AC voltage to a doubled DC voltage across its output. Hence it requires an additional inverter to convert DC to AC which increases the complexity. One other method introduced by Cockcraft and Walton is a complex cascade voltage-doubler circuit which could produce a steady potential of about 700 kV which is about 3 times greater than the applied input voltage [20]. But it results in high coupling voltage drop due to the presence of series connected coupling capacitances which causes a small voltage gain for the circuit. To attain high-voltage conversion ratios, a new family of high-voltage-gain dc-dc power electronic converters that makes use of VM cells derived from Dickson charge pump circuit has been proposed [21]. The voltage rating of each VM cell capacitor is twice as that of its previous VM cell. Whenever even number of VM cells are used, the inductors (L , L ) and switches (S , S ) experience different current stresses whenever even number of VM cells are used.

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“…The gain in this circuit is limited to twice that of the conventional topology. Another multi-input converter which can give high voltage gain reported in [21] uses the cascaded voltage multiplier cells. The voltage gain at the output depends on number of such cascaded stages.…”

Section: Introductionmentioning

confidence: 99%

A three port high gain non-isolated DC-DC converter for photovoltaic applications

Teja

Srinivas

Mishra

2016

2016 IEEE International Conference on Industrial Technology (ICIT)

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In photovoltaic (PV) applications, power electronic converters play a vital role in transferring power from source to load. In general, operating voltages of PV arrays are low. To interface them with high voltage DC bus, a high voltage conversion system is needed which is provided by high gain topologies. Moreover, to increase the power density, efficiency of conversion and decrease cost, recent developments involve use of multiport converters which are in general multi-input converters capable of interfacing different renewable sources to a single structure. However many topologies reported in the literature achieve only nominal voltage gain between source and output. In this paper, a new topology is proposed by combining the advantages of both high gain and multi-input converters. The proposed topology has two input ports (i) A bidirectional port for energy storage device (ii) A unidirectional port for PV source. Coupled inductor technique is used to obtain high voltage gain. The topology along with theoretical analysis is presented to explain the principle of operation. This analysis is then compared with simulation results from MATLAB-Simulink to validate operating principle of the proposed topology.

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A DC–DC Converter With High Voltage Gain and Two Input Boost Stages

Cited by 303 publications

References 21 publications

Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

Voltage Boosting using Modified Dickson Charge Pump VM Circuit

A three port high gain non-isolated DC-DC converter for photovoltaic applications

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