EPE Association: EPE 2023 - DS1f: Resonant Converters

EPE 2023 - DS1f: Resonant Converters
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2023 ECCE Europe - Conference > EPE 2023 - Topic 02: Power Converter Topologies and Design > EPE 2023 - DS1f: Resonant Converters

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   A Novel Scheme for the Realisation of a 3.6kW High Current Phase-Shift Full Bridge Converter with a Current Doubler and Voltage Mode Control
By Deepshikha BASU, Ritesh Kumar KESHRI [View]
[Download]

Abstract: Present paper proposes a novel scheme to utilize Voltage Mode Control (VMC) over Peak Current Mode Control (PCMC) to achieve a wide output voltage adjustability range with a Current Doubler output circuit in order to overcome the issue of inductor current imbalance. The proposed scheme is validated in an actual prototype of a 3.6kW/30V-120A Phase Shift Full Bridge (PSFB) converter.

   A Re-Configurable Series-Resonant DAB Converter
By Muhammad YAQOOB, Majid ALI, Shuqin WANG, Torrico GROVER [View]
[Download]

Abstract: A reconfigurable series-resonant dual-active-bridge (DAB) converter is proposed for applicationsrequiring wide-range voltage variations such as electric vehicle (EV) chargers. Based on the given outputvoltage range, the proposed converter opts to operate in half-bridge primary and full-bridge secondary (HBFB) mode or half-bridge primary and half-bridge secondary (HBHB). The high-frequency series-resonant LC link is split across the primary and secondary-sides of thetransformer to facilitate dc-offset removal in HBHB mode. An optimal control method is proposed which is applicable to both modes of operations. The effectiveness of the proposed topology and control is validated by experimental results with peak efficiencies of 98.8 \% in HBFB mode and 98.9 \% in HBHB mode.

   Design and Implementation of A Half Bridge CLLLC Converter With Phase Shift Control for E-bike Charger
By Md Nazmul HASAN, Michael RINDLER, Roberto PETRELLA, Franz VOLLMAIER, Herbert HACKL [View]
[Download]

Abstract: The paper presents an isolated bi-directional half bridge CLLLC converter for electric bike charging application. Phase shift control strategy has been proposed to charge and discharge the battery as well as to achieve the required voltage gain. A simplified closed loop control has been implemented and the performance of the controller as well as the converter has been verified in simulations. The experimental realization has been done and the performance of the converter has been tested in both (charging and discharging) power transfer directions. The highest efficiency of 96.2\% has been achieved at 24 V of battery voltage and 2 A of charging current.

   Design and Implementation of an LLC Half-Bridge Resonant Converterfor Isolated Gate-Driver Power Supply
By Dario CUCUCCIO, Ivan MASSIMIANI, Gennaro MACINA, Salvatore CAMPAILLA, Giacomo SCELBA [View]
[Download]

Abstract: An analytical design procedure of an LLC halfbridgeresonant converter for isolated gate-driverpower supply is presented in this paper. Theproposed design method has been applied to an8W isolated bias supply prototype. Experimentalresults validate the design methodology, alsoconfirming this topology as a viable solution forlow-power applications

   Design and Modeling of a 100 W 1 MHz GaN-Based Single-Switch Resonant Converter for High Power Density Inherent PFC LED Driver
By Loris PACE, Matthieu BELEY, Mohamed EL KHATTABI, Arnaud BREARD [View]
[Download]

Abstract: This paper presents the design of a 100W 1MHz single-switch GaN-based resonant converter for high power density LED driver. The proposed prototype is based on the class E topology and performs Zero Voltage Switching (ZVS) as well as inherent Power Factor Correction (PFC)capability. The design procedure using analytical equations is detailed. A high frequency model of the converter including PCB parasitic is achieved and simulation results are confronted to measurements. The designed converter shows an efficiency of 81 \% for an output power of 100W at 1MHz.

   Discrete-Time Domain Modeling of a High-Power Medium-Voltage Resonant Converter
By Amir Hossein MAHDIZADEH SHALMAEI, Mohsen SOLTANI, Amin HAJIZADEH [View]
[Download]

Abstract: LLC resonant converters are widely used in diverse industrial applications, due in part to their high efficiency and high power density. In spite of their numerous advantages, these converters are still considered the most challenging converters from a modeling and control perspective. Several factors contribute to this complexity, including the nonlinear behavior and different operating modes. Therefore, a high-power medium-voltage resonant converter is modeled in this manuscript, and its dynamic behavior is investigated. The nonlinear model simulation performed by MATLAB/Simulink and the electrical circuit simulation performed by PLECS are then compared to verify the accuracy of the obtained model.

   Linear Active Disturbance Rejection Control of an LLC Converter for On-Board Chargers
By Ebru AVCI, Andreas GREIFELT, Hannes BÖRNGEN, Eyke AUFDERHEIDE, Ralph KENNEL, Dieter GERLING [View]
[Download]

Abstract: This paper proposes a Linear Active Disturbance Rejection Control (LADRC) system for a full-bridge LLC converter in on-board chargers for battery electric vehicles. The implementation of LADRC results in high-precision tracking and robustness, providing an effective solution to performance issues initiated by unexpected disturbances. The study underscores the inherent advantages of employing LADRC, including its high operational efficiency and compactness of design. Utilization of LADRC eliminates the need for redesigns even when confronted with modeling inaccuracies or unpredictable disturbances, thus providing enhanced reliability and stability. Drawing upon the advantageous characteristics of LADRC, a control system has been designed for on-board chargers in low-voltage battery electric vehicles (BEVs). This integration results in an efficient, resilient, and compact charging solution.

   Power Stacked Structure: Multi-Phase Interleaved Resonant Converter Based on Y-Connection Transformer
By Zhe SHI, Pooya DAVARI, Yu TANG, Yushuo PEI, Yingjun GUO, Hexu SUN [View]
[Download]

Abstract: This paper proposes a new structure for off-board ultra-fast EV chargers, which facilitates simple power stacking for DC/DC converters. Originality work in this paper is the introduction of odd/even phases interleaved output current ripple characteristics and a unified Rac expression. The structure's advantages are comprehensively outlined, and validated through experimental testing.

   The Power Supply for IH Corresponding to Various Conditions
By Sachio KUBOTA [View]
[Download]

Abstract: Equivalent parameters of IH (Induction Heating) are varied with various conditions or factors. This paper discusses the variation of equivalent parameters of IH under different conditions or factors and presents the power supply for IH which operates stably even if each parameter changes. To ensure stable operation, the fluctuation width of each parameter is investigated. Regarding the IH equivalent value, the difference between a theoretical value and an actual measurement has been estimated. Regarding the IH equivalent value, the difference between a theoretical value and an actual measurement has been estimated. In order to ensure stable operation even if parameters fluctuate, the quasi variable capacitor is proposed and applied to the power supply for IH. The usefulness of the proposed power supply using a quasi variable capacitor is verified through experimental results.

   Time-Domain Analysis of Full-Bridge Series-Resonant Converter and Boundary Conditions for DCM Operation
By Theofilos PAPADOPOULOS, Dimitrios KONTOS, Antonios ANTONOPOULOS [View]
[Download]

Abstract: In this study the operating regions of the DC-DC full-bridge LC-series resonant converter are obtained using time-domain analysis. The conditions to achieve zero-voltage and zero-current switching (ZVS and ZCS) are deduced and the minimization of losses during hard-switching are discussed. In addition, the boundary condition between continuous and discontinuous current mode (CCM and DCM) is derived, as a function of the switching frequency and the load. The analysis is verified by simulations and laboratory measurements, for a small-scale high-frequency converter. Finally, a potential weakness of ZCS is discussed, and a comparison between MOSFET and IGBT semiconductors is performed with respect to the losses.

EPE 2023 - DS1f: Resonant Converters
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2023 ECCE Europe - Conference > EPE 2023 - Topic 02: Power Converter Topologies and Design > EPE 2023 - DS1f: Resonant Converters
	[return to parent folder]

	A Novel Scheme for the Realisation of a 3.6kW High Current Phase-Shift Full Bridge Converter with a Current Doubler and Voltage Mode Control By Deepshikha BASU, Ritesh Kumar KESHRI	[View] [Download]
Abstract: Present paper proposes a novel scheme to utilize Voltage Mode Control (VMC) over Peak Current Mode Control (PCMC) to achieve a wide output voltage adjustability range with a Current Doubler output circuit in order to overcome the issue of inductor current imbalance. The proposed scheme is validated in an actual prototype of a 3.6kW/30V-120A Phase Shift Full Bridge (PSFB) converter.

	A Re-Configurable Series-Resonant DAB Converter By Muhammad YAQOOB, Majid ALI, Shuqin WANG, Torrico GROVER	[View] [Download]
Abstract: A reconfigurable series-resonant dual-active-bridge (DAB) converter is proposed for applicationsrequiring wide-range voltage variations such as electric vehicle (EV) chargers. Based on the given outputvoltage range, the proposed converter opts to operate in half-bridge primary and full-bridge secondary (HBFB) mode or half-bridge primary and half-bridge secondary (HBHB). The high-frequency series-resonant LC link is split across the primary and secondary-sides of thetransformer to facilitate dc-offset removal in HBHB mode. An optimal control method is proposed which is applicable to both modes of operations. The effectiveness of the proposed topology and control is validated by experimental results with peak efficiencies of 98.8 \% in HBFB mode and 98.9 \% in HBHB mode.

	Design and Implementation of A Half Bridge CLLLC Converter With Phase Shift Control for E-bike Charger By Md Nazmul HASAN, Michael RINDLER, Roberto PETRELLA, Franz VOLLMAIER, Herbert HACKL	[View] [Download]
Abstract: The paper presents an isolated bi-directional half bridge CLLLC converter for electric bike charging application. Phase shift control strategy has been proposed to charge and discharge the battery as well as to achieve the required voltage gain. A simplified closed loop control has been implemented and the performance of the controller as well as the converter has been verified in simulations. The experimental realization has been done and the performance of the converter has been tested in both (charging and discharging) power transfer directions. The highest efficiency of 96.2\% has been achieved at 24 V of battery voltage and 2 A of charging current.

	Design and Implementation of an LLC Half-Bridge Resonant Converterfor Isolated Gate-Driver Power Supply By Dario CUCUCCIO, Ivan MASSIMIANI, Gennaro MACINA, Salvatore CAMPAILLA, Giacomo SCELBA	[View] [Download]
Abstract: An analytical design procedure of an LLC halfbridgeresonant converter for isolated gate-driverpower supply is presented in this paper. Theproposed design method has been applied to an8W isolated bias supply prototype. Experimentalresults validate the design methodology, alsoconfirming this topology as a viable solution forlow-power applications

	Design and Modeling of a 100 W 1 MHz GaN-Based Single-Switch Resonant Converter for High Power Density Inherent PFC LED Driver By Loris PACE, Matthieu BELEY, Mohamed EL KHATTABI, Arnaud BREARD	[View] [Download]
Abstract: This paper presents the design of a 100W 1MHz single-switch GaN-based resonant converter for high power density LED driver. The proposed prototype is based on the class E topology and performs Zero Voltage Switching (ZVS) as well as inherent Power Factor Correction (PFC)capability. The design procedure using analytical equations is detailed. A high frequency model of the converter including PCB parasitic is achieved and simulation results are confronted to measurements. The designed converter shows an efficiency of 81 \% for an output power of 100W at 1MHz.

	Discrete-Time Domain Modeling of a High-Power Medium-Voltage Resonant Converter By Amir Hossein MAHDIZADEH SHALMAEI, Mohsen SOLTANI, Amin HAJIZADEH	[View] [Download]
Abstract: LLC resonant converters are widely used in diverse industrial applications, due in part to their high efficiency and high power density. In spite of their numerous advantages, these converters are still considered the most challenging converters from a modeling and control perspective. Several factors contribute to this complexity, including the nonlinear behavior and different operating modes. Therefore, a high-power medium-voltage resonant converter is modeled in this manuscript, and its dynamic behavior is investigated. The nonlinear model simulation performed by MATLAB/Simulink and the electrical circuit simulation performed by PLECS are then compared to verify the accuracy of the obtained model.

	Linear Active Disturbance Rejection Control of an LLC Converter for On-Board Chargers By Ebru AVCI, Andreas GREIFELT, Hannes BÖRNGEN, Eyke AUFDERHEIDE, Ralph KENNEL, Dieter GERLING	[View] [Download]
Abstract: This paper proposes a Linear Active Disturbance Rejection Control (LADRC) system for a full-bridge LLC converter in on-board chargers for battery electric vehicles. The implementation of LADRC results in high-precision tracking and robustness, providing an effective solution to performance issues initiated by unexpected disturbances. The study underscores the inherent advantages of employing LADRC, including its high operational efficiency and compactness of design. Utilization of LADRC eliminates the need for redesigns even when confronted with modeling inaccuracies or unpredictable disturbances, thus providing enhanced reliability and stability. Drawing upon the advantageous characteristics of LADRC, a control system has been designed for on-board chargers in low-voltage battery electric vehicles (BEVs). This integration results in an efficient, resilient, and compact charging solution.

	Power Stacked Structure: Multi-Phase Interleaved Resonant Converter Based on Y-Connection Transformer By Zhe SHI, Pooya DAVARI, Yu TANG, Yushuo PEI, Yingjun GUO, Hexu SUN	[View] [Download]
Abstract: This paper proposes a new structure for off-board ultra-fast EV chargers, which facilitates simple power stacking for DC/DC converters. Originality work in this paper is the introduction of odd/even phases interleaved output current ripple characteristics and a unified Rac expression. The structure's advantages are comprehensively outlined, and validated through experimental testing.

	The Power Supply for IH Corresponding to Various Conditions By Sachio KUBOTA	[View] [Download]
Abstract: Equivalent parameters of IH (Induction Heating) are varied with various conditions or factors. This paper discusses the variation of equivalent parameters of IH under different conditions or factors and presents the power supply for IH which operates stably even if each parameter changes. To ensure stable operation, the fluctuation width of each parameter is investigated. Regarding the IH equivalent value, the difference between a theoretical value and an actual measurement has been estimated. Regarding the IH equivalent value, the difference between a theoretical value and an actual measurement has been estimated. In order to ensure stable operation even if parameters fluctuate, the quasi variable capacitor is proposed and applied to the power supply for IH. The usefulness of the proposed power supply using a quasi variable capacitor is verified through experimental results.

	Time-Domain Analysis of Full-Bridge Series-Resonant Converter and Boundary Conditions for DCM Operation By Theofilos PAPADOPOULOS, Dimitrios KONTOS, Antonios ANTONOPOULOS	[View] [Download]
Abstract: In this study the operating regions of the DC-DC full-bridge LC-series resonant converter are obtained using time-domain analysis. The conditions to achieve zero-voltage and zero-current switching (ZVS and ZCS) are deduced and the minimization of losses during hard-switching are discussed. In addition, the boundary condition between continuous and discontinuous current mode (CCM and DCM) is derived, as a function of the switching frequency and the load. The analysis is verified by simulations and laboratory measurements, for a small-scale high-frequency converter. Finally, a potential weakness of ZCS is discussed, and a comparison between MOSFET and IGBT semiconductors is performed with respect to the losses.