EPE Association: EPE 2022 - LS6e: Power Supplies & Industry-Specific Applications

EPE 2022 - LS6e: Power Supplies & Industry-Specific Applications
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2022 ECCE Europe - Conference > EPE 2022 - Topic 09: Industry-Specific Energy Conversion and Conditioning Technologies > EPE 2022 - LS6e: Power Supplies & Industry-Specific Applications

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   Hardware and Control Design of a High Precision Modular Power Converter based on GaN Technology for Particle Accelerator Magnets
By Thomas MARGREITER [View]
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Abstract: Particle accelerators are exploited in cancer treatment. Due to advanced performance requirements inthis field, an industry standard modular power converter by means of hardware prototyping is developed.Moreover, a sophisticated controller is implemented. Measurements proof its suitability, acting as anideal voltage source for accelerator magnets, requiring fast transients.

   Self-Oscillating Capacitive Power Transfer with Multiple Receiver Capability and Coupling Path Adaption
By Norbert SELIGER [View]
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Abstract: We present a capacitive power transfer system with self-adapting capability to multiple, variable loadreceivers. The proposed self-oscillating GaN-based half-bridge converter with load current feedbackautomatically adapts to the coupling path. We show design equations based on network theory anddemonstrate experimentally more than 100W power transfer at 92\% efficiency.

   Soft-switching Converter for Inductive Power Transfer System with Double-sided LCC Resonant Network
By Ryohei OKADA [View]
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Abstract: In a general soft switching method for inductive power transfer (IPT) systems, a reactive current is intentionally generated in the resonant network and then utilized to achieve soft switching. However, the whole-system efficiency worsens because the reactive current circulates in the system. Against this problem, the soft-switching active bridge (SAB) converter is proposed. The SAB converter comprises the full-bridge active converter and the LC circuit, which can generate the reactive current in place of the resonant network. As a result, the reactive current circulating in the system is reduced, and high efficiency can be achieved. This paper shows how to apply the SAB converter to IPT systems with the double-sided LCC topology. The theoretical analysis clarifies the effect of the design of the LC circuit on the whole-system efficiency, and the design guideline for the LC circuit is discussed. In the experiment, the validities of the theoretical analysis result and the design guideline are shown. The SAB-IPT system can get higher efficiency over wide operation range as well as the theoretical analysis result. Especially, the efficiency at 2.5 kW-output is improved by 0.69 points, and the efficiency at 1.5 kW-output is improved by 0.88 points.

EPE 2022 - LS6e: Power Supplies & Industry-Specific Applications
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2022 ECCE Europe - Conference > EPE 2022 - Topic 09: Industry-Specific Energy Conversion and Conditioning Technologies > EPE 2022 - LS6e: Power Supplies & Industry-Specific Applications
	[return to parent folder]

	Hardware and Control Design of a High Precision Modular Power Converter based on GaN Technology for Particle Accelerator Magnets By Thomas MARGREITER	[View] [Download]
Abstract: Particle accelerators are exploited in cancer treatment. Due to advanced performance requirements inthis field, an industry standard modular power converter by means of hardware prototyping is developed.Moreover, a sophisticated controller is implemented. Measurements proof its suitability, acting as anideal voltage source for accelerator magnets, requiring fast transients.

	Self-Oscillating Capacitive Power Transfer with Multiple Receiver Capability and Coupling Path Adaption By Norbert SELIGER	[View] [Download]
Abstract: We present a capacitive power transfer system with self-adapting capability to multiple, variable loadreceivers. The proposed self-oscillating GaN-based half-bridge converter with load current feedbackautomatically adapts to the coupling path. We show design equations based on network theory anddemonstrate experimentally more than 100W power transfer at 92\% efficiency.

	Soft-switching Converter for Inductive Power Transfer System with Double-sided LCC Resonant Network By Ryohei OKADA	[View] [Download]
Abstract: In a general soft switching method for inductive power transfer (IPT) systems, a reactive current is intentionally generated in the resonant network and then utilized to achieve soft switching. However, the whole-system efficiency worsens because the reactive current circulates in the system. Against this problem, the soft-switching active bridge (SAB) converter is proposed. The SAB converter comprises the full-bridge active converter and the LC circuit, which can generate the reactive current in place of the resonant network. As a result, the reactive current circulating in the system is reduced, and high efficiency can be achieved. This paper shows how to apply the SAB converter to IPT systems with the double-sided LCC topology. The theoretical analysis clarifies the effect of the design of the LC circuit on the whole-system efficiency, and the design guideline for the LC circuit is discussed. In the experiment, the validities of the theoretical analysis result and the design guideline are shown. The SAB-IPT system can get higher efficiency over wide operation range as well as the theoretical analysis result. Especially, the efficiency at 2.5 kW-output is improved by 0.69 points, and the efficiency at 1.5 kW-output is improved by 0.88 points.