Simplified Resonant Parameter Design of the Asymmetrical <i>CLLC</i>-Type DC Transformer in the Renewable Energy System via Semi-Artificial Intelligent Optimal Scheme

Huang, Jingjing; Zhang, Xin; Zhao, Bin

doi:10.1109/tpel.2019.2922216

Cited by 25 publications

(10 citation statements)

References 35 publications

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“…Mode 2 ( 12 , tt ): At time 1 t , Diode D 2 is in forwarding bias, and Diode D 1 is in reversed bias. 1 L i increases as (1), and 2 L i decreases as (2). Capacitor C 2 is charged by Capacitor C 1 and the input power supply.…”

Section: Analysis Of the Proposed Structurementioning

confidence: 99%

“…Due to the hard switching of these converters, increasing the switching frequency for small size, the switching losses associated with the on and off states of the semiconductor components of the DC-DC converter increase (MOSFET on losses and diode off losses). These losses are so significant that the operations of the converter limit in the high frequency [2]. PSOL and Super lift DC-DC converters may find high voltage gain.…”

Section: Introductionmentioning

confidence: 99%

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High voltage gain resonant DC-DC converter with vm cells for renewable sources applications

et al. 2022

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Due to the widespread impact of renewable energy resources on high power density grids, transmission at the DC regime has been considered more useful than AC transmission systems. The findings of this study suggest the application of a ripple-free input current resonant DC-DC converter possessing high voltage gain and high efficiency as being more suitable for renewable energy systems. Applying variable switching frequency control systems, the proposed converter discussed here is generally operated at the critical conduction mode for soft switching of the semiconductor switches. Using the resonance mechanism, the proposed converter causes a decrease in the turn-on loss of the power switch without needing additional semiconductor gadgets. It leads to a reduction in the reverse-recovery losses of the rectifying diodes. Also, analysis and design consideration of the proposed converter are presented with excellent performance.

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Section: Analysis Of the Proposed Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High voltage gain resonant DC-DC converter with vm cells for renewable sources applications

et al. 2022

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“…It can design gain curves for charging and discharging modes separately, thereby result in lower switching loss caused by excessive high frequency [20]. To address the difficulty of symmetric/asymmetric parameter design, a bidirectional unified modelling, analysis, and design method is proposed [21][22]. By selecting appropriate and quantitative bidirectional circuit factors, this model unifies the forward and reverse circuits which greatly simplifies the calculation or iteration of the parameter design and the complexity of bidirectional synchronous rectification (SR) [23].…”

Section: Introductionmentioning

confidence: 99%

Reversible hybrid control resonant converter for electric vehicle battery charging and discharging system

Chen

Chiou

et al. 2022

The Journal of Engineering

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In this study, the control modes in the newly designed converter include a variable frequency control mode, a phase shift control mode, and hybrid switching with a dual control mode. Compared with the traditional resonant converter, the newly designed converter has the following characteristics: (1) Zero voltage and zero current soft switching to improve converter efficiency in forward and reverse mode and wide voltage range, (2) solves the problem of voltage adjustment being difficult and switching loss increasing at light load for the resonant converter under the variable frequency control mode, (3) hybrid switching with a dual‐control strategy to resolve the design difficulty of digital control in hybrid switching control mode, (4) a closed loop control for the resonant converter with hybrid switching and dual‐ control mode. Finally, In the forward charging mode, the input voltage is 400 V, the output voltage is 250–450 V, the maximum power is 1000 W, and the maximum efficiency is 96.69%. In reverse discharge mode, the input voltage is 250–450 V, the output voltage is 400 V, and the efficiency at full load is 95.13%. The maximum conversion efficiency is 97.57% when the output power is 840 W.

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“…ACLLCtype resonant tanks can be viewed as a generalized version for all aforementioned resonant tanks. The parameter design for this resonant tank was discussed in [34] to guarantee voltage conversion and power transmission performance. As for the limitation of this topology, the drawbacks in size and cost of the CLLC-type resonant converter also apply here.…”

Section: Cllc-type and Acllc-type Resonant Dab Convertermentioning

confidence: 99%

“…The dual active bridge (DAB) converter exhibits many advantages including bidirectional power transfer capability, high power density and galvanic isolation [140]. It has wide applications, such as solid state transformer [141], electric vehicle [142], energy management system [143] and DC microgrid [144].…”

Section: Introductionmentioning

confidence: 99%

The dual active bridge converter design with artificial intelligence

Lin¹

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Simplified Resonant Parameter Design of the Asymmetrical CLLC-Type DC Transformer in the Renewable Energy System via Semi-Artificial Intelligent Optimal Scheme

Cited by 25 publications

References 35 publications

High voltage gain resonant DC-DC converter with vm cells for renewable sources applications

High voltage gain resonant DC-DC converter with vm cells for renewable sources applications

Reversible hybrid control resonant converter for electric vehicle battery charging and discharging system

The dual active bridge converter design with artificial intelligence

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