Ultra-Highly Efficient Low-Power Bidirectional Cascaded Buck-Boost Converter for Portable PV-Battery-Devices Applications

Chen, Xi; Pise, Anirudh Ashok; Elmes, John; Batarseh, Issa

doi:10.1109/tia.2019.2911566

Cited by 43 publications

(14 citation statements)

References 23 publications

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“…In (10) and (11), when voltage V B and V o are specified, turns ratio N is inversely proportional to duty ratio D 12 .Since a large duty ratio D 12 corresponds to a smaller turns ratio N of transformer T r . That is, lower current stresses are imposed on switches M 1 and M 2 .…”

Section: B2 Transformer T Rmentioning

confidence: 99%

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Buck-Boost/Flyback Hybrid Converter for Solar Power System Applications

Tseng

Fan

2021

Electronics

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This paper proposes a hybrid converter to supply power from solar power source to load. Since power is generated by solar power, which depends on the intensity of solar power, the power generated by the solar power does not keep at a constant power. Therefore, the proposed system needs a battery to balance power between solar power and load. When the proposed one uses the battery to balance powers, the proposed circuit requires a charger and discharger. To simplify the proposed converter, a buck-boost converter and flyback converter can be combined to implement the battery charging and discharging functions. With this approach, the proposed converter can be operated with zero-voltage switching (ZVS) at turn-on transition to reduce switching loss of switch when the proposed one is operated in the discharging mode. In addition, the proposed hybrid converter has several merits, which are less component counts, lighter weight, smaller size and higher conversion efficiency. As compared with the conventional counterparts with hard-switching circuit, the proposed one can increase conversion efficiency of 4% and achieve efficiency of 85% under full load condition when the proposed one is operated in the discharging mode. Experimental results which are obtained from a prototype with output voltage of 10 V and maximum output power 20 W have been implemented to verify its feasibility. It is suitable for an electronic sign indicating LED within 200 W, which is used in the night time.

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Section: B2 Transformer T Rmentioning

confidence: 99%

“…The output voltage of solar power source is less than or greater than that of battery (8 V~12 V). Therefore, it simultaneously needs a step-up and step-down converter, such as buck-boost, 'cuk, zeta and sepic converter [11][12][13]. As compared with 'cuk, zeta and sepic converter, buck-boost converter possesses a simpler circuit topology.…”

Section: Introductionmentioning

confidence: 99%

Buck-Boost/Flyback Hybrid Converter for Solar Power System Applications

Tseng

Fan

2021

Electronics

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“…In (Nanwani & More, 2018), the authors proposed a novel buck-boost converter for photovoltaic systems with a transformerless inverter. In (Chen, Pise, Elmes, & Batarseh, 2019), the authors proposed a high efficient buck-boost converter for portable battery devices. In (Jamshidpour, Poure, & Saadate 2019), the authors utilized the two-stage DC-DC converters for energy harvesting applications.…”

Section: Introductionmentioning

confidence: 99%

Design of an adaptive nonsingular terminal sliding mode using supervisory fuzzy for the output voltage control of a buck converter

Badfar¹,

Abdollahi²

2020

JART

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The buck converter is widely utilized in various applications such as solar chargers, electrical vehicles and space exploration. The use of an efficient controller in buck converters reduces the heat and losses, extends the useful life, and allows for smaller gadgets to be built. In this research, a novel technique is proposed to regulate the output voltage of the buck converter. For this purpose, the mathematical model of the converter is introduced. Next, the adaptive sliding mode is suggested to regulate the output voltage. In order to ensure the faster transient response and finite-time convergence, the terminal sliding mode control is suggested. The singularity problem is solved by using nonsingular terminal sliding mode control. The switching gain is adaptively scheduled according to the fuzzy logic system. Finally, some simulation results including the parametric uncertainties, measurement noise, and steady-state error analysis are illustrated to demonstrate the efficiency of the proposed controller.

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“…This converter has the advantage of an output current without ripple and it is possible to buck or boost the input voltage. On the other hand, in Reference [32] it is utilized a cascaded buck-boost converter for the application. Such converters are typical of PV-battery systems for its simplicity, its bidirectional capability and the versatility to buck or boost the input voltage.…”

Section: Introductionmentioning

confidence: 99%

A Novel Integrated Topology to Interface Electric Vehicles and Renewable Energies with the Grid

et al. 2019

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Electric Vehicles (EVs) are an alternative to internal combustion engine cars to reduce the environmental impact of transportation. It is common to use several power sources to achieve the requirements of the electric motor. A proper power converter and an accurate control strategy need to be utilized to take advantage of the characteristics of every source. In this paper is presented a novel topology of a multiple-input bidirectional DC-DC power converter to interface two or more sources of energy with different voltage levels. Furthermore, it can be used as a buck or a boost in any of the possible conversion of energy. It is also possible to independently control the extracted power in each source and any combination of the elements of the system can be used as source and destiny for a transfer. Finally, the interaction with the grid is possible. The operation, analysis and design of the converter are presented with different modes of power transfer. Simulation results are shown where the theoretical analysis of the converter is validated.

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Ultra-Highly Efficient Low-Power Bidirectional Cascaded Buck-Boost Converter for Portable PV-Battery-Devices Applications

Cited by 43 publications

References 23 publications

Buck-Boost/Flyback Hybrid Converter for Solar Power System Applications

Buck-Boost/Flyback Hybrid Converter for Solar Power System Applications

Design of an adaptive nonsingular terminal sliding mode using supervisory fuzzy for the output voltage control of a buck converter

A Novel Integrated Topology to Interface Electric Vehicles and Renewable Energies with the Grid

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