EPE Association: EPE 2019 - LS6c: Industry Specific Energy Conversion and Conditioning Technologies

EPE 2019 - LS6c: Industry Specific Energy Conversion and Conditioning Technologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2019 ECCE Europe - Conference > EPE 2019 - Topic 09: Industry-Specific Energy Conversion and Conditioning Technologies > EPE 2019 - LS6c: Industry Specific Energy Conversion and Conditioning Technologies

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   A 1 MHz Wide Bandgap Power Amplifier for High-Precision Applications
By Qihao YU [View]
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Abstract: The goal of this research is to optimize the total inductor volume of the extra bias inductor opposedcurrent converter. Wide bandgap semiconductors are used to raise the switching frequency to 1 MHzfor a further decrease of the inductor volume. The research is validated with a high-precision currentamplifier prototype.

   Measurements on a 12.5/17.5 kV Inductive Adder with Extremely High Stability for the Damping Ring Kickers of the Compact Linear Collider at CERN
By Janne HOLMA [View]
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Abstract: The specifications for the kicker systems for the Compact Linear Collider call for 900 ns duration pulses of ±12.5/±17.5 kV, of up to 433 A, with combined ripple and droop of not more than ±0.02 \% at 12.5 kV. Measured pulse waveforms of 12.5/17.5 kV prototypes have demonstrated ±0.02 \%/±0.2 \% relative waveform stability, respectively. In addition, measurements show that it is feasible to operate the inductive adder in two modes, at 12.5 kV for normal operation and 17.5 kV for dumping the beam: this inductive adder can still achieve the stringent stability specification of ±0.02 \% at 12.5 kV.

   Mutual impact of train regenerative braking and inverter based reversible DC railway substation
By Khaled ALMAKSOUR [View]
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Abstract: The efficiency of a regenerative braking energy operation is discussed in this paper. Sending recovered energy back to the grid is possible using a reversible converter installed in a DC railway power substation. The strategy of such converter impacts the efficiency of the recovered energy because of coupling between the converter strategy and the regenerative braking strategy of the train. This coupling is highlighted in this paper and results on real time simulation test bench of a specific railway section in Paris are discussed.

   Pulse current generator with fast rise time based on transformers and single active switch for plasma drilling
By Oliver KEEL [View]
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Abstract: This paper presents a new pulse generator topology based on the flyback converter and the XRAM generator concept. The presented topology has the advantage of only requiring a single active switch which results in a simpler control and a higher robustness. Those requirements are essential for plasma drilling, for which the pulse generator has to operate in harsh environment with a high ambient temperature and high mechanical stresses. This paper presents the design procedure of the pulse transformer of the proposed topology and results for a first design.

EPE 2019 - LS6c: Industry Specific Energy Conversion and Conditioning Technologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2019 ECCE Europe - Conference > EPE 2019 - Topic 09: Industry-Specific Energy Conversion and Conditioning Technologies > EPE 2019 - LS6c: Industry Specific Energy Conversion and Conditioning Technologies
	[return to parent folder]

	A 1 MHz Wide Bandgap Power Amplifier for High-Precision Applications By Qihao YU	[View] [Download]
Abstract: The goal of this research is to optimize the total inductor volume of the extra bias inductor opposedcurrent converter. Wide bandgap semiconductors are used to raise the switching frequency to 1 MHzfor a further decrease of the inductor volume. The research is validated with a high-precision currentamplifier prototype.

	Measurements on a 12.5/17.5 kV Inductive Adder with Extremely High Stability for the Damping Ring Kickers of the Compact Linear Collider at CERN By Janne HOLMA	[View] [Download]
Abstract: The specifications for the kicker systems for the Compact Linear Collider call for 900 ns duration pulses of ±12.5/±17.5 kV, of up to 433 A, with combined ripple and droop of not more than ±0.02 \% at 12.5 kV. Measured pulse waveforms of 12.5/17.5 kV prototypes have demonstrated ±0.02 \%/±0.2 \% relative waveform stability, respectively. In addition, measurements show that it is feasible to operate the inductive adder in two modes, at 12.5 kV for normal operation and 17.5 kV for dumping the beam: this inductive adder can still achieve the stringent stability specification of ±0.02 \% at 12.5 kV.

	Mutual impact of train regenerative braking and inverter based reversible DC railway substation By Khaled ALMAKSOUR	[View] [Download]
Abstract: The efficiency of a regenerative braking energy operation is discussed in this paper. Sending recovered energy back to the grid is possible using a reversible converter installed in a DC railway power substation. The strategy of such converter impacts the efficiency of the recovered energy because of coupling between the converter strategy and the regenerative braking strategy of the train. This coupling is highlighted in this paper and results on real time simulation test bench of a specific railway section in Paris are discussed.

	Pulse current generator with fast rise time based on transformers and single active switch for plasma drilling By Oliver KEEL	[View] [Download]
Abstract: This paper presents a new pulse generator topology based on the flyback converter and the XRAM generator concept. The presented topology has the advantage of only requiring a single active switch which results in a simpler control and a higher robustness. Those requirements are essential for plasma drilling, for which the pulse generator has to operate in harsh environment with a high ambient temperature and high mechanical stresses. This paper presents the design procedure of the pulse transformer of the proposed topology and results for a first design.