Phase-Shifted Full-Bridge Series-Resonant DC-DC Converters for Wide Load Variations

Lo, Yu‐Kang; Lin, Chung-Yi; Hsieh, Min-Tsong; Lin, Chien-Yu

doi:10.1109/tie.2010.2058076

Cited by 147 publications

(47 citation statements)

References 15 publications

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“…Different demands are considered depending on application of DC-DC converters, like high efficiency [1][2][3], high voltage gain [4], low voltage and/or current stress on switches [5,6], smaller size of magnetics [7], etc. A resonant converter is one kind of converter satisfying these needs [6,[8][9][10][11][12][13][14][15][16]. These converters can operate at high frequencies [17].…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications

Salehi¹,

Vahidi

Milimonfared³

et al. 2015

Turk J Elec Eng & Comp Sci

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This paper proposes a current-fed quasi-resonant converter with soft switching method. Input current ripple is reduced by employing two boost circuits at the input, which makes this converter appropriate for fuel cell application.Current stress on switches is reduced because of the resonance in switches, and also, as a result of zero voltage switching in switches, switching losses will be reduced in this proposed converter. In the output, the reverse recovery problem of diodes is alleviated by zero current switching, so there is no need for fast diodes anymore. The reduction of losses improves the efficiency, and in a wide range of load, efficiency is high. Experimental results on a 1-kW prototype are provided to validate the proposed concept.

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Section: Introductionmentioning

confidence: 99%

Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications

Salehi¹,

Vahidi

Milimonfared³

et al. 2015

Turk J Elec Eng & Comp Sci

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show abstract

“…The simplest method for controlling these switches is PWM technigue. Conventional power converters uses hard switching in which the voltage across or current through the switch is abruptly altered to control power flow ([6], [7]). Eventhough hard switching has advantages such as simplicity and ease of control it can't be used for high switching frequencies, as the converter switching losses increases with increase in switching frequency, it also increases stress on the device and system EMI.…”

Section: ]-[5])mentioning

confidence: 99%

High Efficiency Resonant Boost Converter for Photovoltaic Energy Harvesting

Nath¹,

Radhakrishnan²

2014

IJAREEIE

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ABSTRACT:In this work, a single-switch resonant boost converter with an energy-blocking diode was proposed for use in a solar energy generation system. The structure of the proposed converter is simpler and cheaper than other resonant power converters, which require numerous components. The proposed single-switch resonant power converter offers the advantages of soft switching, reduced switching losses, and increased energy conversion efficiency. This circuit topology integrates a single-switch resonant converter with zero-voltage-switching (ZVS) with an energyblocking diode with zero-current-switching (ZCS). The energy blocking diode with a direct current (DC) output filter filters the output stage of the single-switch resonant converter. Only one active power switch is used for power energy conversion to reduce the cost of active power switches and control circuits. Simulation results demonstrate a satisfactory performance of the proposed topology, which is especially suited to the energy conversion applications in photovoltaic energy generation systems. KEYWORDS:Resonant Power Converter, Photovoltaic Energy Generation, Soft Switching. I.INTRODUCTIONThe global demand for electric energy has continuously increased over the last few decades. Energy and the environment have become serious concerns in today's world. Nowadays, most power that is used to meet our daily needs is obtained from fossil fuels. Owing to increases in consumption, fossil fuel sources may be exhausted in the near future. Besides, combustion of fossil fuels results in a serious threat of global warming. As people are much concerned with the fossil fuel exhaustion and the environmental problems caused by the conventional power generation, renewable energy sources and among them fuel cells, photovoltaic panels and wind-generators are now widely used ([1],[2]). Among all renewable energy resources, photovoltaic (PV) power generation systems have been regarded as the most promising future sources of energy because of their advantages, such as the absence of a need for fuel and the associated cost saving, low maintenance, lack of noise, pollution-free, nonradioactive and inexhaustible ([3 ]-[5]).If the DC output of photovoltaic energy generation systems is directly connected to a battery energy storage system (BESS), then the output voltage of the DC output source of the photovoltaic energy generation system will be fixed to the voltage of the BESS, so the photovoltaic energy generation system cannot always operate optimally. Hence, a DC/DC interface must be installed between the photovoltaic energy generation system and the BESS to ensure that the photovoltaic energy generation system always operates at its optimum operating points. The DC/DC interface is generally a power converter operated with one or more power semiconductor switches. The simplest method for controlling these switches is PWM technigue. Conventional power converters uses hard switching in which the voltage across or current through the switch is abruptly altered to control powe...

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“…Several types of resonant converters have been applied in dc power supply applications. Series resonant converters have poor no-load regulation, poor short circuit characteristics and need a larger output filter capacitor [7][8][9]. However its switching losses decrease with load decrease.…”

Section: Abstract-mentioning

confidence: 99%

Linearized Large Signal Modeling, Analysis, and Control Design of Phase-Controlled Series-Parallel Resonant Converters Using State Feedback

Aboushady

Ahmed

Finney

et al. 2013

IEEE Trans. Power Electron.

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Phase-Shifted Full-Bridge Series-Resonant DC-DC Converters for Wide Load Variations

Cited by 147 publications

References 15 publications

Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications

Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications

High Efficiency Resonant Boost Converter for Photovoltaic Energy Harvesting

Linearized Large Signal Modeling, Analysis, and Control Design of Phase-Controlled Series-Parallel Resonant Converters Using State Feedback

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