Actuator Development Step by Step: Pellet Particle Flux Control for Single- and Multiple-Source Systems

被引：6

作者：

Lang, P. T. ^{[1
]}

Ploeckl, B. ^{[1
]}

Fischer, R. ^{[1
]}

Griener, M. ^{[1
]}

Kircher, M. ^{[1
]}

Kudlacek, O. ^{[1
]}

Phillips, G. ^{[2
]}

Sieglin, B. ^{[1
]}

Yamamoto, S. ^{[3
]}

Treutterer, W. ^{[1
]}

机构：

[1] Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany

[2] Fus Energy F4E, Boltzmannstr 2, D-85748 Garching, Germany

[3] Naka Fus Inst, Natl Inst Quantum & Radiol Technol, 801-1 Mukoyama, Naka, Ibaraki 3110193, Japan

来源：

FUSION SCIENCE AND TECHNOLOGY | 2022年 / 78卷 / 01期

关键词：

ASDEX Upgrade; JT-60SA; tokamak; pellet technology; plasma control; DENSITY; JT-60SA;

D O I：

10.1080/15361055.2021.1940034

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Fuel injection by means of solid cryogenic pellets is expected to provide a sound and efficient tool. Hence, the installation of a pellet launching system will be a necessity. Yet, pellets are considered as a serviceable actuator for integrated supplementary functions as, e.g., fast and efficient delivery of seeding gas, or in case needed, the pacing of edge-localized modes. Consequently, a control scheme has to be developed that is capable of mastering the simultaneous actuations covering different tasks. Our scheme relies on pellet launching by a centrifuge accelerator, providing the option for precisely predictable pellet injection sequences. In order to develop a suitable actuator control scheme, as a first step the central part was brought into service at ASDEX Upgrade. It proved operational for feedback particle flux control of a single pellet source. In a subsequent step, it is now upgraded to enable multitasked control of the JT-60SA multipellet source currently under construction. In its finally designated configuration, this control scheme provides a potential solution for a reactor-grade system.

引用

页码：1 / 9

页数：9

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