EPE Association: EPE 2023 - DS1g: HF Power Converters

EPE 2023 - DS1g: HF Power 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 - DS1g: HF Power Converters

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   A Four-quadrant Buck-boost Partial Power DC/DC Converter for Battery Energy Storage System
By XingAo TAO, Feng WANG, Fang ZHUO [View]
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Abstract: As the power level of battery energy storage systems (BESS) increases, the issues of low efficiency and low power density resulting from the high power demands of traditional full power converters (FPC) become more apparent. To solve them, a four-quadrant buck-boost partial power converter (PPC) is proposed, in which the internal DC/DC of the converter flows only a small portion of the total power, while the remaining power is transferred directly between the battery and the DC bus through the feedforward path. This paper examines the performance evaluation methods of the PPC from various perspectives. It describes the advantages and limitations of the four-quadrant buck-boost PPC, and presents a design for the topology and control strategy based on a CLLC resonant circuit. Through simulation, the automatic operation of the converter in all four modes is achieved. The proposed is compared to the FPC under the same operating conditions, and the paper highlights the advantages of the four-quadrant buck-boost PPC in terms of efficiency, power density, active and nonactive power, and component stress.

   A High Voltage Pulse Generator for Ozofractionation based PFAS Treatment in Industrial Waste
By Chinara KULDIP, Lakshminarasamma N [View]
[Download]

Abstract: The presence of PFAS is significant in industrial waste and has been dubbed as possibly carcinogenic to humans. The ozofractionation based treatment is more efficient in removing PFAS from industrial waste. The ozofractionation process comprises of ozone being applied to the waste water in the form of tiny bubbles. The PFAS comes under heavily contaminated waste, and removing it requires higher amount of ozone; hence the power requirement is typically high for an ozone generator used for PFAS treatment. This paper proposes a novel silent discharge based high-voltage pulsed ozone generator topology for ozofractionation based removal of PFAS. A novel converter topology i.e. full bridge-based resonant boost, is proposed in this paper. The converter topology is generates high voltage pulses of 5 kV (Peak-Peak), with pulse width (FWHM) of 4 microsecond and PRR of 15 kHz. The proposed topology is analyzed, modelled and designed, and the same is verified through simulation results.

   A New ZVT Snubber Cell for PWM-CCM Boost Converters
By Haci BODUR, Suat YILDIRMAZ [View]
[Download]

Abstract: This paper introduces a novel zero-voltage-transition (ZVT) snubber cell for power converters that improves efficiency and reduces switching losses compared to passive snubber circuits. The proposed snubber cell was tested on a DC-DC boost converter with a 2kW power output and 100 kHz switching frequency, and simulation and experimental results show the effectiveness of the proposed technique.

   Highly Efficient (99.2\%), Ultra-Compact (32.3 W/cm3) Capacitively Coupled DC/DC Power Electronic Transformer for 380 V DC Power Supply Systems
By Keigo ARITA, Yusuke HAYASHI, Kazuto TAKAO [View]
[Download]

Abstract: The capacitively coupled DC/DC power electronic transformer (DCPET) has been proposed for 380 V DC power supply systems. The capacitive coupling topology achieves highly efficient and ultra-compact isolated DC/DC converter, removing the high-frequency transformer which is dominant in the converter loss and volume. A prototype of the DCPET has been fabricated and its performance with the peak efficiency of 99.2\% and power density of 32.3 W/cm3 has been verified. The proposed topology overcomes the stagnant relationship between the efficiency and the power density of isolated converters. The proposed DCPET contributes the energy saving of the data centers in the future big data-driven society.

EPE 2023 - DS1g: HF Power 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 - DS1g: HF Power Converters
	[return to parent folder]

	A Four-quadrant Buck-boost Partial Power DC/DC Converter for Battery Energy Storage System By XingAo TAO, Feng WANG, Fang ZHUO	[View] [Download]
Abstract: As the power level of battery energy storage systems (BESS) increases, the issues of low efficiency and low power density resulting from the high power demands of traditional full power converters (FPC) become more apparent. To solve them, a four-quadrant buck-boost partial power converter (PPC) is proposed, in which the internal DC/DC of the converter flows only a small portion of the total power, while the remaining power is transferred directly between the battery and the DC bus through the feedforward path. This paper examines the performance evaluation methods of the PPC from various perspectives. It describes the advantages and limitations of the four-quadrant buck-boost PPC, and presents a design for the topology and control strategy based on a CLLC resonant circuit. Through simulation, the automatic operation of the converter in all four modes is achieved. The proposed is compared to the FPC under the same operating conditions, and the paper highlights the advantages of the four-quadrant buck-boost PPC in terms of efficiency, power density, active and nonactive power, and component stress.

	A High Voltage Pulse Generator for Ozofractionation based PFAS Treatment in Industrial Waste By Chinara KULDIP, Lakshminarasamma N	[View] [Download]
Abstract: The presence of PFAS is significant in industrial waste and has been dubbed as possibly carcinogenic to humans. The ozofractionation based treatment is more efficient in removing PFAS from industrial waste. The ozofractionation process comprises of ozone being applied to the waste water in the form of tiny bubbles. The PFAS comes under heavily contaminated waste, and removing it requires higher amount of ozone; hence the power requirement is typically high for an ozone generator used for PFAS treatment. This paper proposes a novel silent discharge based high-voltage pulsed ozone generator topology for ozofractionation based removal of PFAS. A novel converter topology i.e. full bridge-based resonant boost, is proposed in this paper. The converter topology is generates high voltage pulses of 5 kV (Peak-Peak), with pulse width (FWHM) of 4 microsecond and PRR of 15 kHz. The proposed topology is analyzed, modelled and designed, and the same is verified through simulation results.

	A New ZVT Snubber Cell for PWM-CCM Boost Converters By Haci BODUR, Suat YILDIRMAZ	[View] [Download]
Abstract: This paper introduces a novel zero-voltage-transition (ZVT) snubber cell for power converters that improves efficiency and reduces switching losses compared to passive snubber circuits. The proposed snubber cell was tested on a DC-DC boost converter with a 2kW power output and 100 kHz switching frequency, and simulation and experimental results show the effectiveness of the proposed technique.

	Highly Efficient (99.2\%), Ultra-Compact (32.3 W/cm3) Capacitively Coupled DC/DC Power Electronic Transformer for 380 V DC Power Supply Systems By Keigo ARITA, Yusuke HAYASHI, Kazuto TAKAO	[View] [Download]
Abstract: The capacitively coupled DC/DC power electronic transformer (DCPET) has been proposed for 380 V DC power supply systems. The capacitive coupling topology achieves highly efficient and ultra-compact isolated DC/DC converter, removing the high-frequency transformer which is dominant in the converter loss and volume. A prototype of the DCPET has been fabricated and its performance with the peak efficiency of 99.2\% and power density of 32.3 W/cm3 has been verified. The proposed topology overcomes the stagnant relationship between the efficiency and the power density of isolated converters. The proposed DCPET contributes the energy saving of the data centers in the future big data-driven society.