Analysis of integrated boost-flyback step-up converter

Liang, Tsorng–Juu; Tseng, Kuo‐Ching

doi:10.1049/ip-epa:20045003

Cited by 243 publications

(92 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In these converters, a coupled inductor can serve as a transformer that is used to extend the voltage gain. The cascade [11] and stacked [12] coupled-inductor boost converters are the basic structures of the coupled-inductorbased boost converters. In these converters, the reverse recovery of the output diode is eliminated by the leakage inductance of coupled-inductor and also by increasing turn ratio of the coupled-inductor.…”

Section: Introductionmentioning

confidence: 99%

A Non-isolated High Step-up DC/DC Converter with Low EMI and Voltage Stress for Renewable Energy Applications

Baharlou¹,

Yazdani²

2017

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

-In this paper, a high step-up DC-DC PWM converter with continuous input current and low voltage stress is presented for renewable energy application. The proposed converter is composed of a boost converter integrated with an auxiliary step-up circuit. The auxiliary circuit uses an additional coupled inductor and a balancing capacitor with voltage doubler and switching capacitor technique to achieve high step-up voltage gain with an appropriate switch duty cycle. The switched capacitors are charged in parallel and discharged in series by the coupled inductor, stacking on the output capacitor. In the proposed converter, the voltage stress on the main switch is clamped, so a low voltage switch with low ON resistance can be used to reduce the conduction loss which results in the efficiency improvement. A detailed discussion on the operating principle and steady-state analyses are presented in the paper. To justify the theoretical analysis, experimental results of a 200W 40/400V prototype is presented. In addition, the conducted electromagnetic emissions are measured which shows a good EMC performance.

show abstract

Section: Introductionmentioning

confidence: 99%

A Non-isolated High Step-up DC/DC Converter with Low EMI and Voltage Stress for Renewable Energy Applications

Baharlou¹,

Yazdani²

2017

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

show abstract

“…Currently, efficient technologies including coupled inductor [24][25][26][27][28] and switched capacitor [25,26,[29][30][31][32][33] are often adopted to improve the voltage conversion ratio.…”

Section: Introductionmentioning

confidence: 99%

“…In [24][25][26][27], the proposed flyback converter is able to build an additional energy transmission circuit by means of coupled inductors, and can superimpose the output voltage of the additional circuit on that of the main circuit as shown in Figure 7. Thus, a relatively high voltage gain can be achieved.…”

Section: Introductionmentioning

confidence: 99%

High Step-Up 3-Phase Rectifier with Fly-Back Cells and Switched Capacitors for Small-Scaled Wind Generation Systems

et al. 2015

View full text Add to dashboard Cite

This paper proposes and discusses a novel AC/DC converter suitable for small-scaled wind power generation system applications. By introducing flyback cells into the three-phase single-switch Boost circuit, the proposed converter is designed as single-stage and has both rectification and high step-up power conversion functions. It is able to obtain high voltage gain at low input voltage level, and high efficiency, low total harmonic distortion (THD) at rated power. The inherent power factor correction (PFC) is also determined, and can reach 0.99. Besides, since no electrolytic capacitor is employed and high voltage gain is achieved, the converter can also collect weak power at low input voltage in combination with energy storage devices, and contribute to a better low-wind-speed/low-power performance. Finally, a 400 W prototype is built to verify the theoretical analysis, and its efficiency is 87.6%, while THD is 7.4% at rated power.

show abstract

Section: Iintroductionmentioning

confidence: 99%

“…The quadratic boost converter using a single active switch is another interesting topology for extending the voltage gain [1]-[3], the turn ratio of the coupled inductor or tapped inductor is increased. For improving the voltage conversion ratio, the input current ripple becomes larger [8]- [9].the digital based system has implemented for controlling the output [12].A single switch high voltage dc-dc converter consist of switched capacitor, switched inductor ,clamper circuit and voltage doublers with capacitor and diode and these are the components used to reduced voltage stress and obtain reliable voltage high output. To attain the conversion ratio in high level, the transformer can be used without operating it in duty cycle in higher level.…”

mentioning

confidence: 99%

A Novel PI Converter based High Voltage Gain DC – DC Converter

Sujith¹,

S.Neelan²,

Kumar³

et al. 2014

IJAREEIE

View full text Add to dashboard Cite

ABSTRACT:In this project is widely employed in many industrial applications, such as fuel cell system, uninterrupted power supplies, electric traction, distributed photovoltaic generation system and some medical equipment's. This project a single switch high voltage gain dc-dc converter with coupled inductor and diode capacitor methods are used. The proposed converter is used to reduce voltage stress with help of coupled inductor and attain the high conversion ratio without operating at high duty cycle. To eliminate potential resonance between diode capacitor and leakage inductance. This converter is reliable and low cost. The nonlinear load produces abnormal conditions, such as voltage imbalance, harmonics current and ripple current. The error can be controlled by using PI controller. With the help of proposed converter, the above problems can be reduced and we can obtain the efficient power factor values. Finally the performance can be designed and verified using MATLAB KEYWORDS:Boost converter, Coupled Inductor, Diode Capacitor, Voltage Multiplier cell, voltage stress I.INTRODUCTIONNow a day, single switch high voltage gain dc -dc converters is used to reduce voltage stress and recycle the output by leakage inductance energy. In this converter used in many industrial applications such as fuel cell energy conversion systems, uninterrupted power supply electric traction and some medical equipment's. The above applications depend on the dc-dc converter types which are boost converter. Here with the help of boost converter rather than classical, high output voltage is equal to voltage stress of the main switch. The result of an extremely high duty cycle will give large conduction losses on power device and it is not realizing high voltage gain. This converter achieve high conversion ratio and reduced at extremely high duty cycle. In high voltage applications the rating of active switch is high voltage must be selected.The converters based on transformers or coupled inductors or tapped inductors used to achieve the high conversion ratio of voltage [5]- [6]. The quadratic boost converter using a single active switch is another interesting topology for extending the voltage gain [1]-[3], the turn ratio of the coupled inductor or tapped inductor is increased. For improving the voltage conversion ratio, the input current ripple becomes larger [8]- [9].the digital based system has implemented for controlling the output [12].A single switch high voltage dc-dc converter consist of switched capacitor, switched inductor ,clamper circuit and voltage doublers with capacitor and diode and these are the components used to reduced voltage stress and obtain reliable voltage high output. To attain the conversion ratio in high level, the transformer can be used without operating it in duty cycle in higher level. The filter circuit is used to the unwanted ripples. With the help of duty cycle, the level of output voltage can be estimated and moderate voltage gain is found. Advantages of a single switch high voltage gain converter wi...

show abstract

Analysis of integrated boost-flyback step-up converter

Cited by 243 publications

References 7 publications

A Non-isolated High Step-up DC/DC Converter with Low EMI and Voltage Stress for Renewable Energy Applications

A Non-isolated High Step-up DC/DC Converter with Low EMI and Voltage Stress for Renewable Energy Applications

High Step-Up 3-Phase Rectifier with Fly-Back Cells and Switched Capacitors for Small-Scaled Wind Generation Systems

A Novel PI Converter based High Voltage Gain DC – DC Converter

Contact Info

Product

Resources

About