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  1. 原著論文

Demonstration of synchronous control of EC TL switch and gyrotron for ITER EC system

https://repo.qst.go.jp/records/48966
https://repo.qst.go.jp/records/48966
694999d7-9ba3-4c91-851b-5824c4ed940f
Item type 学術雑誌論文 / Journal Article(1)
公開日 2018-05-11
タイトル
タイトル Demonstration of synchronous control of EC TL switch and gyrotron for ITER EC system
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 小田, 靖久

× 小田, 靖久

WEKO 493525

小田, 靖久

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大島, 克己

× 大島, 克己

WEKO 493526

大島, 克己

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林, 一生

× 林, 一生

WEKO 493527

林, 一生

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池田, 亮介

× 池田, 亮介

WEKO 493528

池田, 亮介

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高橋, 幸司

× 高橋, 幸司

WEKO 493529

高橋, 幸司

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坂本, 慶司

× 坂本, 慶司

WEKO 493530

坂本, 慶司

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Gandini, Franco

× Gandini, Franco

WEKO 493531

Gandini, Franco

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Purohit, Dharmesh

× Purohit, Dharmesh

WEKO 493532

Purohit, Dharmesh

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Yonekawa, Izuru

× Yonekawa, Izuru

WEKO 493533

Yonekawa, Izuru

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Omori, Toshimichi

× Omori, Toshimichi

WEKO 493534

Omori, Toshimichi

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Darbos, Caroline

× Darbos, Caroline

WEKO 493535

Darbos, Caroline

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Henderson, Mark

× Henderson, Mark

WEKO 493536

Henderson, Mark

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小田 靖久

× 小田 靖久

WEKO 493537

en 小田 靖久

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大島 克己

× 大島 克己

WEKO 493538

en 大島 克己

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林 一生

× 林 一生

WEKO 493539

en 林 一生

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池田 亮介

× 池田 亮介

WEKO 493540

en 池田 亮介

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高橋 幸司

× 高橋 幸司

WEKO 493541

en 高橋 幸司

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坂本 慶司

× 坂本 慶司

WEKO 493542

en 坂本 慶司

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抄録
内容記述タイプ Abstract
内容記述 The ITER EC system includes both an equatorial port launcher and upper port launchers as RF power injection devices, The waveguide switch in the transmission line (TL) is used to select the operating launcher. Its operation is required even during plasma operation, primarily for the mid-pulse switch operation. Changing the waveguide switch requires that the gyrotron stop RF power during the switch operation since the direction is changed by mechanical movement of the mirror position which takes a few seconds. Since the ITER EC system is based on a multi-subsystem concept, each subsystem has its own subsystem control unit (SCU). The EC main controller supervises all subsystem controllers. Hence, cooperative operation requires the sharing of the information of both RF power status and switch status between the gyrotron SCU and TL SCU via the main controller. Since the design of the inter-subsystem control scheme is a key issue for ITER EC system control, its evaluation is required. At QST, the gyrotron and ITER-relevant TL test stand were utilized for demonstration of mid-pulse switch operation. For this purpose, SCUs for each subsystem and the main controller were developed using the ITER-relevant control system. The operation of the mechanical switch during gyrotron pulse was demonstrated. During the 150 s operation of the high power gyrotron at 400 kW level, the waveguide switch in the TL was operated to change the direction of RF power. The time duration for the switch operation with inter-subsystem control scheme took 1.5 s in total. The synchronizing of RF power suspend and resume with switch motion has therefore been realized, and RF power direction control during the gyrotron operation was successfully demonstrated.
書誌情報 Fusion Engineering and Design

巻 123, p. 371-375, 発行日 2017-11
DOI
識別子タイプ DOI
関連識別子 10.1016/j.fusengdes.2017.03.159
関連サイト
識別子タイプ URI
関連識別子 https://www.sciencedirect.com/science/article/pii/S0920379617303824
関連名称 https://www.sciencedirect.com/science/article/pii/S0920379617303824
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