EPE Association: EPE 2007 - Subtopic 20-1 - LS: Energy conversion and conditioning technologies in physics research and related applications

EPE 2007 - Subtopic 20-1 - LS: Energy conversion and conditioning technologies in physics research and related applications
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 20: 'Energy conversion and conditioning technologies in physics research and related applications' > EPE 2007 - Subtopic 20-1 - LS: Energy conversion and conditioning technologies in physics research and related applications

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   A novel 60MW Pulsed Power System based on Capacitive Energy Storage for Particle Accelerators
By BURNET Jean-Paul; BORDRY Frederick; FAHRNI Claude; RUFER Alfred [View]
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Abstract: Large Physics experimentation as in particle accelerators or in nuclear fusion is often characterised by a strong and modulated power demand, incompatible with the power availability of the grid. Therefore, large facilities for short-term energy storage have been used, traditionally based on rotating machine. Several new solutions of power supply are studied and especially a new solution for energy storage is presented, where capacitors are used as energy storage elements. They are integrated in the static power converter. The energy- and instantaneous power-demand are presented, and then the global storage system with a dedicated multilevel DC/DC converter with flying capacitors is described. A specific control strategy for voltage balance, together with an adapted loss compensation method is also introduced and developed.

   Comparison of Direct Resonant Converter Topologies for High Power RF Applications
By COOK David; CLARE Jon; WEYLER Marcus; PRZYBYLA Jan; RICHARDSON Robert; WHEELER Pat [View]
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Abstract: This paper is concerned with direct power converters for high power, high voltage, RF applications. Two novel converter topologies are discussed. Both converters are soft switched and utilise a high frequency resonant tank, a high voltage, and a high frequency transformer. The relative advantages and drawbacks of each converter are discussed.

   200kV Pulse Power Supply Implementation
By KIM Jong Hyun; RYU Myung-Hyo; RIM Geun-Hie ; MIN Byung-Duk [View]
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Abstract: 200kV pulse power supply implementation based on IGBT stacks is implemented in this study. The pulse power supply uses Marx circuit as high voltage pulse generator. The Marx circuit is composed of 20 stages and each stage is made of IGBT stack, two diode stacks, and capacitor. It can generate the pulse voltage with the following parameters: Voltage: up to 200kV, Rising time: sub μS, Pulse width: up to 4μS, PRR: 1000pps Inductive and diode charging method is used to charge high voltage capacitor of each stage without power loss. The proposed pulsed power generator uses IGBT stack with a simple driver and has modular design. So this system structure gives compactness and easiness to implement total system. Some experimental and simulated results are included to verify the system performances in this paper.

EPE 2007 - Subtopic 20-1 - LS: Energy conversion and conditioning technologies in physics research and related applications
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 20: 'Energy conversion and conditioning technologies in physics research and related applications' > EPE 2007 - Subtopic 20-1 - LS: Energy conversion and conditioning technologies in physics research and related applications
	[return to parent folder]

	A novel 60MW Pulsed Power System based on Capacitive Energy Storage for Particle Accelerators By BURNET Jean-Paul; BORDRY Frederick; FAHRNI Claude; RUFER Alfred	[View] [Download]
Abstract: Large Physics experimentation as in particle accelerators or in nuclear fusion is often characterised by a strong and modulated power demand, incompatible with the power availability of the grid. Therefore, large facilities for short-term energy storage have been used, traditionally based on rotating machine. Several new solutions of power supply are studied and especially a new solution for energy storage is presented, where capacitors are used as energy storage elements. They are integrated in the static power converter. The energy- and instantaneous power-demand are presented, and then the global storage system with a dedicated multilevel DC/DC converter with flying capacitors is described. A specific control strategy for voltage balance, together with an adapted loss compensation method is also introduced and developed.

	Comparison of Direct Resonant Converter Topologies for High Power RF Applications By COOK David; CLARE Jon; WEYLER Marcus; PRZYBYLA Jan; RICHARDSON Robert; WHEELER Pat	[View] [Download]
Abstract: This paper is concerned with direct power converters for high power, high voltage, RF applications. Two novel converter topologies are discussed. Both converters are soft switched and utilise a high frequency resonant tank, a high voltage, and a high frequency transformer. The relative advantages and drawbacks of each converter are discussed.

	200kV Pulse Power Supply Implementation By KIM Jong Hyun; RYU Myung-Hyo; RIM Geun-Hie ; MIN Byung-Duk	[View] [Download]
Abstract: 200kV pulse power supply implementation based on IGBT stacks is implemented in this study. The pulse power supply uses Marx circuit as high voltage pulse generator. The Marx circuit is composed of 20 stages and each stage is made of IGBT stack, two diode stacks, and capacitor. It can generate the pulse voltage with the following parameters: Voltage: up to 200kV, Rising time: sub μS, Pulse width: up to 4μS, PRR: 1000pps Inductive and diode charging method is used to charge high voltage capacitor of each stage without power loss. The proposed pulsed power generator uses IGBT stack with a simple driver and has modular design. So this system structure gives compactness and easiness to implement total system. Some experimental and simulated results are included to verify the system performances in this paper.