Grid interface design for the Compact Linear Collider (CLIC)

Jankovic, Marija; Watson, Alan J.; Clare, Jon; Wheeler, Patrick; Aguglia, Davide

doi:10.1109/epe.2015.7309234

Cited by 2 publications

(2 citation statements)

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“…The Modular Multilevel Converter (MMC) due to its high modularity, efficiency and good AC waveform quality [1] has been selected as a suitable topology for the grid interface for the klystron modulators used in the Compact Linear Collider (CLIC) [2], [3]. MMCs are typically used in HVDC systems where one of the advantages is the absence of a bulk DC link capacitor.…”

Section: Introductionmentioning

confidence: 99%

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Control of a modular multilevel converter with pulsed DC load

Jankovic

Watson

Costabeber

et al. 2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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Abstract-This paper focuses on a Modular Multilevel Converter grid interface for a klystron modulator system that behaves as a pulsed DC load. With such a load, and without mitigating control, the MMC suffers from cell capacitor voltage imbalance between the converter arms which leads to distortion (fluctuation) of the absorbed AC power. This paper proposes an augmented modulation strategy, with a tailored distribution of the modulation signals between the arms within a phase, to ensure low AC power fluctuation. The effectiveness of the method has been verified through simulation and has been experimentally proven on a 7 kW MMC prototype operating with a 3 kA pulsed DC load.

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Section: Introductionmentioning

confidence: 99%

“…The converter and klystron modulator parameters for the proposed system are given in Table I. The passive components are rated in correspondence with [3], [4].…”

Section: Introductionmentioning

confidence: 99%