Design and Implementation of Three-Level Half-Bridge Bidirectional CL3C Resonant DC Converter

Huang, Junxian; Liang, Tsorng–Juu; Tseng, Wei-Jing; Chen, Zhao-Wei

doi:10.1109/ecce.2019.8912829

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…[22,23] propose an inverter-phase shift control method to meet the gain requirement for reverse operation and achieve full-range soft switching under such control. [24] proposes a halfbridge three-level bidirectional LLC resonant converter with a three-stage hybrid control Bidirectional AC/DC converters are often used as system pre-stages with either a halfbridge structure or a full-bridge structure. The half-bridge structure requires fewer devices and is easy to control, but the switching transistor voltage and current stress are high, and the efficiency is low.…”

Section: Introductionmentioning

confidence: 99%

“…Ref. [24] proposes a half-bridge three-level bidirectional LLC resonant converter with a three-stage hybrid control strategy combining "frequency, phase shift, and frequency burst" control methods to achieve high efficiency and wide-range voltage output. However, it is prone to inrush current and long commutation time during switching control.…”

Section: Introductionmentioning

confidence: 99%

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Research on Bidirectional Isolated Charging System Based on Resonant Converter

Zhou

Sun

2022

Electronics

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This paper proposes a two-stage bidirectional isolated charging system, which can realize the bidirectional flow of electric energy, not only making the electric energy flow from the grid side to the battery side but also converting the battery’s energy into single-phase alternating current to supply other electric equipment. The charging system also has the function of power factor correction and wide-range voltage output. The front stage of the charging system is a bidirectional totem pole structure power factor correction converter with a voltage and current double closed-loop control strategy to ensure the stability of the DC bus voltage, and the rear stage is a bidirectional CLLLC resonant converter, which adopts a high-frequency soft start strategy to reduce the inrush current during start-up and ensure the safe operation of the converter. Moreover, the frequency control strategy is used to make it have a wide range of DC output characteristics. In this paper, the principle analysis and parameter calculation of the charging system is carried out, the simulation platform and hardware circuit design are built, and a test prototype is piloted to verify the bidirectional operating characteristics of the charging system. The simulation and experimental results demonstrate the correctness of the theoretical analysis and topology design.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on Bidirectional Isolated Charging System Based on Resonant Converter

Zhou

Sun

2022

Electronics

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Design of a 22-kW Transformerless EV Charger With V2G Capabilities and Peak 99.5% Efficiency

Jahnes

Zhou

Eull

et al. 2023

IEEE Trans. Ind. Electron.

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An Isolated Three-Port Power Converter with 2C3L and 2C2L Resonant Circuits

2023

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This study proposed an isolated three-port bidirectional resonant converter that combines 2C3L and 2C2L resonant circuits for application in power dispatching. The proposed converter improves the bidirectional power dispatch capabilities of conventional three-port converters and utilizes different resonant converters to complete the energy charge–discharge through ports of different voltage levels. By modulating the frequency alone, bidirectional power regulation and electrical isolation were achieved among the three ports with different voltage levels. The converter involves the use of resonance techniques to enable the power switch to perform soft switching during bidirectional power transmissions, reducing switching loss and electromagnetic interference. The system control of the circuit was a Texas Instruments TMS320F28335 microcontroller. By simulating a DC grid port with a fixed voltage of 400 V, a vehicle battery port with a variable voltage of 280–403 V, and a battery charging port with a variable voltage of 180–213 V, an experimental platform with a rated output of 3 kW was built to determine the accuracy of the proposed theoretical analysis and design method.

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Design and Implementation of Three-Level Half-Bridge Bidirectional CL3C Resonant DC Converter

Cited by 3 publications

References 13 publications

Research on Bidirectional Isolated Charging System Based on Resonant Converter

Research on Bidirectional Isolated Charging System Based on Resonant Converter

Design of a 22-kW Transformerless EV Charger With V2G Capabilities and Peak 99.5% Efficiency

An Isolated Three-Port Power Converter with 2C3L and 2C2L Resonant Circuits

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