Final design of the SLAC P2 Marx klystron modulator

Kemp, Mark A.; Benwell, A.; Burkhart, C.; Larsen, R.; MacNair, D.; Nguyen, Minh Ngoc; Olsen, J.

doi:10.1109/ppc.2011.6191686

Cited by 13 publications

(7 citation statements)

References 8 publications

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“…As such, a high capacitance for the bank capacitor is required to prevent the capacitor voltage from decreasing during discharging . In contrast, a method for reducing the capacitance of the bank capacitor by means of a compensation circuit using an LC resonance circuit, a method of controlling the output voltage by means of solid‐state Marx generator formed by combining semiconductor switches and bank capacitors in multiple stages, and the like have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Capacitance reduction of pulse voltage generator by using series voltage compensator

Takahashi

Iijima

Isobe

et al. 2019

Electrical Engineering Japan

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This paper proposes a new configuration of a pulse voltage generator, which can be applied to the klystron modulator for a large‐scale accelerator. The voltage generator consists of a conventional capacitor discharge type pulse voltage generator and series cascaded voltage compensators. By using the voltage compensators, higher voltage fluctuation of the bank capacitor is acceptable; therefore, its capacitance and the dimensions of the capacitors can be low. This paper discusses the control strategy of the voltage compensators and thyristors for DC voltage supply for the highly fluctuating capacitor voltage, and demonstrates this by a laboratory‐scale experimental setup.

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Section: Introductionmentioning

confidence: 99%

Capacitance reduction of pulse voltage generator by using series voltage compensator

Takahashi

Iijima

Isobe

et al. 2019

Electrical Engineering Japan

View full text Add to dashboard Cite

show abstract

“…As such, a high capacitance for the bank capacitor is required to prevent the capacitor voltage from decreasing during discharging. 2 In contrast, a method for reducing the capacitance of the bank capacitor by means of a compensation circuit using an LC resonance circuit, 3 a method of controlling the output voltage by means of solid-state Marx generator [4][5][6][7][8] formed by combining semiconductor switches and bank capacitors in multiple stages, and the like have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Capacitance Reduction of Pulse Voltage Generator by Using Series Voltage Compensator

et al. 2018

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This paper proposes a new configuration of a pulse voltage generator, which can be applied to the klystron modulator for a large-scale accelerator. The voltage generator consists of a conventional capacitor discharge type pulse voltage generator and series cascaded voltage compensators. By using the voltage compensators, higher voltage fluctuation of the bank capacitor is acceptable; therefore, its capacitance and the dimensions of the capacitors can be low. This paper discusses the control strategy of the voltage compensators and thyristors for DC voltage supply for the highly fluctuating capacitor voltage, and demonstrates this by a laboratory-scale experimental setup. K E Y W O R D Sklystron modulator, pulse voltage generator, series voltage compensator 40

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“…Several existing klystron modulator topologies have been explored in the literature [1,2,3,4,5]; however, the vast majority of operational ones is based on the controlled discharge of a pre-charged capacitor bank. Therefore one of the options to achieve a precise square flat-top consists in increasing the size of the main capacitor bank, such that it experiences a limited voltage droop during the discharge.…”

Section: Introductionmentioning

confidence: 99%

Novel active bouncer topology for klystron modulators based on pulsed transformers

Magallanes

Aguglia

Viarouge

et al. 2015

2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)

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Active droop compensation systems, so called active bouncers, for klystron modulators based on monolithic pulse transformers perform the regulation of the output pulse voltage while simultaneously withstand all the primary current of the modulator. This imposes the utilization of high power semiconductors which can produce high switching losses and degrade the overall system efficiency. In order to overcome this issue, this paper proposes a new active bouncer topology based on the parallel connection of two different power converters: the first one is in charge of handling the majority of the primary current at high efficiency, and the second one is used to fine tune the bouncer voltage via a high bandwidth converter rated at a fraction of the first parallel connected converter. Detailed comparison between a classical active bouncer and two variants of the proposed topology are presented and based on numerical simulations. AbstractActive droop compensation systems, so called active bouncers, for klystron modulators based on monolithic pulse transformers perform the regulation of the output pulse voltage while simultaneously withstand all the primary current of the modulator. This imposes the utilization of high power semiconductors which can produce high switching losses and degrade the overall system efficiency. In order to overcome this issue, this paper proposes a new active bouncer topology based on the parallel connection of two different power converters: the first one is in charge of handling the majority of the primary current at high efficiency, and the second one is used to fine tune the bouncer voltage via a high bandwidth converter rated at a fraction of the first parallel connected converter. Detailed comparison between a classical active bouncer and two variants of the proposed topology are presented and based on numerical simulations.

show abstract

Final design of the SLAC P2 Marx klystron modulator

Cited by 13 publications

References 8 publications

Capacitance reduction of pulse voltage generator by using series voltage compensator

Capacitance reduction of pulse voltage generator by using series voltage compensator

Capacitance Reduction of Pulse Voltage Generator by Using Series Voltage Compensator

Novel active bouncer topology for klystron modulators based on pulsed transformers

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