Simulation and Analysis of Multiphase Boost Converter with Soft-Switching for Renewable Energy Application

2017 ◽  
Vol 8 (4) ◽  
pp. 1894
Author(s):  
A. A. Bakar ◽  
A. Ponniran ◽  
T. Taufik
Keyword(s):  
Input Voltage ◽  
Boost Converter ◽  
Circuit Model ◽  
Input Current ◽  
Switching Frequency ◽  
Switching Loss ◽  
Simulation Design ◽  
Voltage Range ◽  
Conduction Loss ◽  
Switching Devices

<span>This paper presents the simulation design of dc/dc interleaved boost converter with zero-voltage switching (ZVS). By employin the interleaved structure, the input current stresses to switching devices were reduced and this signified to a switching conduction loss reduction. All the parameters had been calculated theoretically. The proposed converter circuit was simulated by using MATLAB/Simulink and PSpice software programmes. The converter circuit model, with specifications of output power of 200 W, input voltage range from 10~60 V, and operates at 100 kHz switching frequency was simulated to validate the designed parameters. The results showed that the main switches of the model converter circuit achieved ZVS conditions during the interleaving operation. Consequently, the switching losses in the main switching devices were reduced. Thus, the proposed converter circuit model offers advantages of input current stress and switching loss reductions. Hence, based on the designed parameters and results, the converter model can be extended for hardware implementation.</span>

dual inductor-fed boost converter with an auxiliary transformer and voltage doubler

2013 ◽  
Vol 61 (4) ◽  
pp. 787-791
Author(s):  
J. Dawidziuk
Keyword(s):  
Input Voltage ◽  
Boost Converter ◽  
Switching Frequency ◽  
Time Duration ◽  
Two Phase ◽  
Load Range ◽  
Boost Converters ◽  
Conduction Loss ◽  
Voltage Doubler ◽  
Voltage Conversion

Abstract This paper presents a dual inductor-fed boost converter with an auxiliary transformer and voltage doubler for sustainable energy power converters. The new topology integrates a two-phase boost converter and a dual inductor-fed boost converter. The energy stored and transferred by both inductors can attain a wide input-voltage and load range which uses a constant switching frequency, by controlling the time duration of the simultaneous conduction of the two switches. Among other current-fed type boost converters the presented topology is attractive due to the high voltage conversion ratio, less stress on the components and less switch conduction loss. To verify the feasibility of this topology, the principles of operation, theoretical analysis, and experimental waveforms are presented for a 1 kW prototype.

scholarly journals Hybrid DC-DC Converter with Low Switching Loss, Low Primary Current and Wide Voltage Operation

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2536
Author(s):  
Bor-Ren Lin ◽  
Yi-Kuan Lin
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Input Voltage ◽  
Resonant Circuit ◽  
Switching Loss ◽  
Voltage Range ◽  
Current Loss ◽  
Zero Voltage Switching ◽  
Energy Applications ◽  
Multi Stage

A full-bridge converter with an additional resonant circuit and variable secondary turns is presented and achieved to have soft-switching operation on active devices, wide voltage input operation and low freewheeling current loss. The resonant tank is linked to the lagging-leg of the full bridge pulse-width modulation converter to realize zero-voltage switching (ZVS) characteristic on the power switches. Therefore, the wide ZVS operation can be accomplished in the presented circuit over the whole input voltage range and output load. To overcome the wide voltage variation on renewable energy applications such as DC wind power and solar power conversion, two winding sets are used on the output-side of the proposed converter to obtain the different voltage gains. Therefore, the wide voltage input from 90 to 450 V (Vin,max = 5Vin,min) is implemented in the presented circuit. To further improve the freewheeling current loss issue in the conventional phase-shift pulse-width modulation converter, an auxiliary DC voltage generated from the resonant circuit is adopted to reduce this freewheeling current loss. Compared to the multi-stage DC converters with wide input voltage range operation, the proposed circuit has a low freewheeling current loss, low switching loss and a simple control algorithm. The studied circuit is tested and the experimental results are demonstrated to testify the performance of the resented circuit.

scholarly journals Step-Up Series Resonant DC–DC Converter with Bidirectional-Switch-Based Boost Rectifier for Wide Input Voltage Range Photovoltaic Applications

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3747 ◽  
Author(s):  
Abualkasim Bakeer ◽  
Andrii Chub ◽  
Dmitri Vinnikov
Keyword(s):  
Theoretical Analysis ◽  
Duty Cycle ◽  
Input Voltage ◽  
Voltage Regulation ◽  
Switching Frequency ◽  
Voltage Gain ◽  
Voltage Range ◽  
Dc Voltage ◽  
Wide Range ◽  
Series Resonant

This paper proposes a high gain DC–DC converter based on the series resonant converter (SRC) for photovoltaic (PV) applications. This study considers low power applications, where the resonant inductance is usually relatively small to reduce the cost of the converter realization, which results in low-quality factor values. On the other hand, these SRCs can be controlled at a fixed switching frequency. The proposed topology utilizes a bidirectional switch (AC switch) to regulate the input voltage in a wide range. This study shows that the existing topology with a bidirectional switch has a limited input voltage regulation range. To avoid this issue, the resonant tank is rearranged in the proposed converter to the resonance capacitor before the bidirectional switch. By this rearrangement, the dependence of the DC voltage gain on the duty cycle is changed, so the proposed converter requires a smaller duty cycle than that of the existing counterpart at the same gain. Theoretical analysis shows that the input voltage regulation range is extended to the region of high DC voltage gain values at the maximum input current. Contrary to the existing counterpart, the proposed converter can be realized with a wide range of the resonant inductance values without compromising the input voltage regulation range. Nevertheless, the proposed converter maintains advantages of the SRC, such as zero voltage switching (ZVS) turn-on of the primary-side semiconductor switches. In addition, the output-side diodes are turned off at zero current. The proposed converter is analyzed and compared with the existing counterpart theoretically and experimentally. A 300 W experimental prototype is used to validate the theoretical analysis of the proposed converter. The peak efficiency of the converter is 96.5%.

Algebraic Series-Parallel-Based Switched-Capacitor DC–DC Boost Converter With Wide Input Voltage Range and Enhanced Power Density

2019 ◽  
Vol 54 (11) ◽  
pp. 3118-3134 ◽  
Author(s):  
Yang Jiang ◽  
Man-Kay Law ◽  
Zhiyuan Chen ◽  
Pui-In Mak ◽  
Rui P. Martins
Keyword(s):  
Power Density ◽  
Input Voltage ◽  
Boost Converter ◽  
Switched Capacitor ◽  
Voltage Range

Simulation and Experimentation of Fourth Order DC-DC Boost Converter for Renewable Energy Source Applications

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
S.B Mohanty ◽  
K.M Ravi Eswar ◽  
D. Elangovan ◽  
G. Arun Kumar
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Storage ◽  
Fourth Order ◽  
Input Voltage ◽  
Boost Converter ◽  
Switching Frequency ◽  
Bacterial Foraging Optimization ◽  
Loop Control

In this paper, analysis and experimentation of a fourth order boost converter has been proposed for renewable energy source applications such as solar power. The output of proposed converter is fed to motor load of 220W. The main advantages of this converter are negligible current ripples at both source and load side and higher efficiency as compared to the conventional boost converter. The energy storage elements in circuit are designed and optimized using Bacterial Foraging Optimization Algorithm (BFOA) to solve the contradictory problems of steady state and dynamic performance of the system. The up-down glitch in control to output transfer function of system is reduced with the optimized values of energy storage elements in the proposed converter. Therefore dynamic response of system is analyzed with the designed values of inductor and capacitor. Closed loop control is introduced in the proposed system using proportional integral controller to maintain the output voltage constant when there is any load disturbance in the output side and wide variations in the input voltage. Simulation and hardware results of the proposed converter with input voltage of 60V and switching frequency of 100 kHz are presented.

scholarly journals Performance Analysis of Trench Power MOSFETs in High-Frequency Synchronous Buck Converter Applications

2008 ◽  
Vol 2008 ◽  
pp. 1-9 ◽  
Author(s):  
Yali Xiong ◽  
Xu Cheng ◽  
Xiangcheng Wang ◽  
Pavan Kumar ◽  
Lina Guo ◽  
...  
Keyword(s):  
Figure Of Merit ◽  
Buck Converter ◽  
Switching Frequency ◽  
Circuit Modeling ◽  
Buck Converters ◽  
Switching Loss ◽  
Frequency Range ◽  
Power Mosfets ◽  
Conduction Loss ◽  
Obvious Benefit

This paper investigates the performance perspectives and theoretical limitations of trench power MOSFETs in synchronous rectifier buck converters operating in the MHz frequency range. Several trench MOSFET technologies are studied using a mixed-mode device/circuit modeling approach. Individual power loss contributions from the control and synchronous MOSFETs, and their dependence on switching frequency between 500 kHz and 5 MHz are discussed in detail. It is observed that the conduction loss contribution decreases from 40% to 4% while the switching loss contribution increases from 60% to 96% as the switching frequency increases from 500 KHz to 5 MHz. Beyond 1 MHz frequency there is no obvious benefit to increase the die size of either SyncFET or CtrlFET. The RDS(ON)×QG figure of merit (FOM) still correlates well to the overall converter efficiency in the MHz frequency range. The efficiency of the hard switching buck topology is limited to 80% at 2 MHz and 65% at 5 MHz even with the most advanced trench MOSFET technologies.

scholarly journals Improved Modulated Carrier Controlled PFC Boost Converter Using Charge Current Sensing Method

Energies ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 717 ◽  
Author(s):  
Jintae Kim ◽  
Chung-Yuen Won
Keyword(s):  
Control Method ◽  
Harmonic Distortion ◽  
Control Unit ◽  
Input Voltage ◽  
Boost Converter ◽  
Current Sensing ◽  
Voltage Range ◽  
Zero Current ◽  
Voltage Amplifier ◽  
Current Duration

An improved modulated carrier control (MCC) method is proposed to offer high power factor (PF) and low total harmonic distortion (THD) at a wide input voltage range and load variation. The conventional MCC method not only requires a multiplier and divider, but also is hard to be implemented with a micro controller unit without a high frequency oscillator. To overcome the problem and maintain the advantages of the conventional MCC method, the proposed MCC method adopts a current integrator, an output voltage amplifier, a zero-current duration (ZCD) demodulator of the boost inductor, and a carrier generator. Thus, it can remove a multiplier and well, as it allows for being operable with a general micro control unit. This paper presents an operation principle of the proposed control method. To verify the proposed control method, experimental results with 400 W PFC boost converter is demonstrated.

scholarly journals Miniature DC-DC Boost Converter for Driving Display Panel of Notebook Computer

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2924
Author(s):  
Seok-Hyeong Ham ◽  
Hyung-Jin Choe
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Input Voltage ◽  
Boost Converter ◽  
Switching Frequency ◽  
Notebook Computer ◽  
Switching Losses ◽  
Voltage Stress ◽  
Switch Temperature

This paper proposes a miniature DC-DC boost converter to drive the display panel of a notebook computer. To reduce the size of the circuit, the converter was designed to operate at a switching frequency of 1 MHz. The power conversion efficiency improved using a passive snubber circuit that consisted of one inductor, two capacitors, and two diodes; it reduced the switching losses by lowering the voltage stress of the switch and increased the voltage gain using charge pumping operations. An experimental converter was fabricated at 2.5 cm × 1 cm size using small components, and tested at input voltage 5 V ≤ VIN ≤ 17.5 V and output current 30 mA ≤ IO ≤ 150 mA. Compared to existing boost converters, the proposed converter had ~7.8% higher power conversion efficiency over the entire range of VIN and IO, only ~50% as much voltage stress of the switch and diodes, and a much lower switch temperature TSW = 49.5 °C. These results indicate that the proposed converter is a strong candidate for driving the display panel of a notebook computer.

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