A high gain noninverting DC–DC converter with low voltage stress for industrial applications

2021 ◽  
Author(s):  
Javed Ahmad ◽  
Marif Daula Siddique ◽  
Adil Sarwar ◽  
Chang Hua Lin ◽  
Atif Iqbal
Keyword(s):  
Low Voltage ◽  
High Gain ◽  
Industrial Applications ◽  
Voltage Stress

scholarly journals High-Gain Switched-Capacitor DC-DC Converter with Low Count of Switches and Low Voltage Stress of Switches

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Robert Stala ◽  
Maciej Chojowski ◽  
Zbigniew Waradzyn ◽  
Andrzej Mondzik ◽  
Szymon Folmer ◽  
...  
Keyword(s):  
Low Voltage ◽  
High Gain ◽  
Switched Capacitor ◽  
Voltage Stress

scholarly journals Design of New High Step-Up DC-DC Converter Topology for Solar PV Applications

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Shanthi Thangavelu ◽  
Prabha Umapathy
Keyword(s):  
Low Voltage ◽  
High Gain ◽  
Performance Comparison ◽  
Duty Ratio ◽  
Voltage Gain ◽  
Solar Pv ◽  
High Voltage Gain ◽  
Voltage Stress ◽  
Converter Topologies ◽  
Converter Topology

A new topology for high step-up nonisolated DC-DC converter for solar PV applications is presented in this paper. The proposed high-voltage gain converter topology has many advantages like low-voltage stress on the switches, high gain with low duty ratio, and a continuous input current. The analytical waveforms of the proposed converter are presented in continuous and discontinuous modes of operation. Voltage stress analysis is conducted. The voltage gain and efficiency of the converter in presence of parasitic elements are also derived. Performance comparison of the proposed high-gain converter topology with the recently reported high-gain converter topologies is presented. Validation of theoretical analysis is done through the test results obtained from the simulation of the proposed converter. For the maximum duty ratio of 80%, the output voltage of 670 V is observed, and the voltage gain obtained is 14. Comparison of theoretical and simulation results is presented which validates the performance of the proposed converter.

scholarly journals High Gain DC-DC Converter Integrating Dickson Charge Pump with Coupled Inductor Technique

2021 ◽  
Vol 7 (6) ◽  
pp. 272-277
Author(s):  
P. Nithin and Dr. R. Rajeswari
Keyword(s):  
High Voltage ◽  
Low Voltage ◽  
High Gain ◽  
Voltage Gain ◽  
Power Switch ◽  
High Voltage Gain ◽  
Voltage Stress ◽  
Input Side ◽  
State Resistance ◽  
Current Ripple

In this paper, a novel high voltage gain DC-DC converter based on coupled inductor and voltage multiplier technique is proposed. The benefits of the proposed converter are ultra-high voltage gain, low voltage stress across the power switch and very low input current ripple by employing a low current ripple structure (LCR) at the input side. A low on state resistance (RDS(on)) of the power switch can be employed since the voltage stress is a maximum of 25% of the output voltage and the conduction losses of the switch is also reduced. Design of a 1.9kW, 48V at the low voltage side and 430V at the high voltage side is done and verified by simulation. Simulation results show an efficiency of over 93% when operating in continuous conduction mode (CCM).

scholarly journals High gain multiphase boost converter based-on capacitor clamping structure

2021 ◽  
Vol 24 (2) ◽  
pp. 689
Author(s):  
Oday Saad Fares ◽  
Jasim Farhood Hussen
Keyword(s):  
High Voltage ◽  
Output Voltage ◽  
Low Voltage ◽  
High Gain ◽  
Industrial Applications ◽  
Boost Converter ◽  
Power Device ◽  
Voltage Gain ◽  
High Voltage Gain ◽  
And Performance

<p>In the last few years, the non-isolated dc converters involving high voltage gain with adequate performance are becoming quite popular in industrial applications. This is resulting in high voltage and current stress on the power device (switches and diodes), as well as a limited output voltage with a high duty cycle. This paper proposes a multi-phase non-isolated boost converter that uses capacitor clamping to increase output voltage while reducing stress across the power device. There are two stages in the proposed converter (first stage is three inductors and three switches and the second stage is clamper circuit of three capacitors and three diodes). The proposed converter is high voltage gain, with low voltage stress through switches transistors. To justify the theoretical analysis, the concept was validated through mathematical analysis and by simulation using MATLAB/SIMULINK. The results carried out the results permit the converter behavior and performance to be accurately.</p>

scholarly journals Novel High-Efficiency High Step-Up DC–DC Converter with Soft Switching and Low Component Voltage Stress for Photovoltaic System

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1112
Author(s):  
Yu-En Wu ◽  
Jyun-Wei Wang
Keyword(s):  
High Voltage ◽  
Output Voltage ◽  
High Efficiency ◽  
Low Voltage ◽  
Leakage Inductance ◽  
Power Switch ◽  
Half Wave Voltage ◽  
Half Wave ◽  
Voltage Stress ◽  
Voltage Doubler

This study developed a novel, high-efficiency, high step-up DC–DC converter for photovoltaic (PV) systems. The converter can step-up the low output voltage of PV modules to the voltage level of the inverter and is used to feed into the grid. The converter can achieve a high step-up voltage through its architecture consisting of a three-winding coupled inductor common iron core on the low-voltage side and a half-wave voltage doubler circuit on the high-voltage side. The leakage inductance energy generated by the coupling inductor during the conversion process can be recovered by the capacitor on the low-voltage side to reduce the voltage surge on the power switch, which gives the power switch of the circuit a soft-switching effect. In addition, the half-wave voltage doubler circuit on the high-voltage side can recover the leakage inductance energy of the tertiary side and increase the output voltage. The advantages of the circuit are low loss, high efficiency, high conversion ratio, and low component voltage stress. Finally, a 500-W high step-up converter was experimentally tested to verify the feasibility and practicability of the proposed architecture. The results revealed that the highest efficiency of the circuit is 98%.

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