A Novel Soft-Switching Battery Charge/Discharge Converter with Zero Voltage Discharge Function

Yu, Sunho; Nguyen, Manh Quang; Choi, Woojin

doi:10.1109/tpel.2015.2482758

Cited by 22 publications

(12 citation statements)

References 41 publications

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“…However, when L leak =0.1μH<L leak(min) , the zero voltage turning-on cannot be achieved. This is consistent with formula (14). Furthermore, simulation results under the light load condition are given in Fig.…”

Section: (A) and (B) Insupporting

confidence: 88%

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A Novel Zero-Voltage-Switching Push-Pull Forward Converter with a Parallel Resonant Network

Cai¹,

Shi²,

Guo³

et al. 2017

Journal of Power Electronics

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A novel zero-voltage-switching (ZVS) push-pull forward converter with a parallel resonant network is presented in this paper. The novel topology can provide a releasing loop for the energy storage in a leakage inductor for the duration of the power switching by the resonant capacitors paralleled with the primary windings of the transformer. Then the transformer leakage inductor is utilized to be resonant with the parallel capacitor, and the ZVS operation is achieved. This converter exhibits many advantages such as lower duty-cycle losses, limited peak voltage across the rectifier diodes and a higher efficiency. Furthermore, the operating principles and key problems of the converter design are analyzed in detail, and the ZVS conditions are derived. A 500W experimental converter prototype has been built to verify the effectiveness of the proposed converter, and its maximum efficiency reaches 94.8%.

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Section: (A) and (B) Insupporting

confidence: 88%

“…The low voltage side used a push-pull structure and the high voltage side employed a full bridge structure in [14][15]. With the phase-shift control strategy, all of the switches operate under the ZVS condition.…”

Section: Introductionmentioning

confidence: 99%

A Novel Zero-Voltage-Switching Push-Pull Forward Converter with a Parallel Resonant Network

Cai¹,

Shi²,

Guo³

et al. 2017

Journal of Power Electronics

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“…The circuit's volume weight and cost were reduced by utilising the novel modular multilevel converter topologies 9 along with the soft switching approach for charging and discharging of batteries. 10 The overall operation time depends on the controlling pulses applied to the system and the settling time of the DC input voltage in traditional topologies. The trade-off between the settling time and the regulation of DC voltage level is the major issue in the traditional approaches.…”

Section: Discussionmentioning

confidence: 99%

“…The operating modes of DPS, soft‐switching range, quantitative analysis of the reactive power, and the design complexities are the major challenges in the DPS implementation. The circuit's volume weight and cost were reduced by utilising the novel modular multilevel converter topologies along with the soft switching approach for charging and discharging of batteries . The overall operation time depends on the controlling pulses applied to the system and the settling time of the DC input voltage in traditional topologies.…”

Section: Introductionmentioning

confidence: 99%

FITF-PDM: Unified controller design for non-isolated bidirectional DC-DC converter

Sundaramurthy¹,

Sigamani²

2017

Int Trans Electr Energ Syst

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Summary High quality and reliability of distributed power systems (DPS) play the major role in the telecommunications, industries, and home applications. The controlling of bidirectional power flow with the varied input and output voltage is the major issue in the distributed power systems due to the low settling time and the harmonics generated in them. The control signal provided to the switching devices used in the DC‐DC converter topologies is responsible for controlling the power flow. This paper presents the enhanced controller that receives the feedback signal as the input and generates the pulses necessary for the switching devices in the converter. The modeling of the feedback signal with the feedback‐integrated transfer function (FITF) provides the pulse density‐modulation (PDM) pulses to the switching section. The DC‐DC converter uses the DPS as front end, and this is a microgrid system. The FITF‐PDM reduces the losses in the switches and improves the output voltage level of the isolated bidirectional DC‐DC converter with the minimum settling time. The employment of zero current transition (ZCT) with the FITF‐PDM pulses boosts up the input voltage level to control the bidirectional power flow. The variations in the pulse density with respect to the variations in the feedback signal (error signal) are responsible for the update of the controlling function. The proposed FITF‐PDM is processes in simulation and compared with the existing control structures in terms of regulation efficiency assures the effectiveness of proposed DC‐DC modeling in the real‐time applications.

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“…Other advantages include lower RMS current stress of the switches and easily achievable high partial load efficiency [14][15][16][17]. Although the VF dc-dc converters received increased attention in the research and industry during the last decades, further improvements and soft switching possibilities for CF converters continue to be addressed [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Bidirectional soft‐switching dc–dc converter for battery energy storage systems

Blinov¹,

Kosenko²,

Chub³

et al. 2018

IET Power Electronics

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The study introduces a bidirectional dc-dc converter with current-and voltage-fed (VF) ports that features soft switching in both buck and boost operating modes. The converter can be used for integration of low-voltage DC sources, such as batteries into a dc bus of considerably higher voltage or a dc link of a grid side inverter. Zero current switching, assisted with the leakage inductance of the isolation transformer, can be achieved at the current-fed side along with zero voltage switching of the VF side, assisted by snubber or intrinsic capacitances of the transistors. Soft switching can be maintained over a wide range of voltage and power levels, regardless of the energy transfer direction. Converter operation is described and theoretical findings were verified with experimental results obtained by means of a 300 W prototype operating at a switching frequency of 100 kHz and designed for integration of a 24 V battery into 400 V dc bus. The converter proposed is compared in terms of efficiency to other competing soft-switching full-bridge topologies implemented with the same components.

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A Novel Soft-Switching Battery Charge/Discharge Converter with Zero Voltage Discharge Function

Cited by 22 publications

References 41 publications

A Novel Zero-Voltage-Switching Push-Pull Forward Converter with a Parallel Resonant Network

A Novel Zero-Voltage-Switching Push-Pull Forward Converter with a Parallel Resonant Network

FITF-PDM: Unified controller design for non-isolated bidirectional DC-DC converter

Bidirectional soft‐switching dc–dc converter for battery energy storage systems

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