Actuator Development Step by Step: Pellet Particle Flux Control for Single- and Multiple-Source Systems
| Autor: | O. Kudlacek, M. Griener, Bernhard Ploeckl, Aug Team, Peter Lang, W. Treutterer, B. Sieglin, G. Phillips, S. Yamamoto, R. Fischer, M. Kircher |
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| Přispěvatelé: | ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society |
| Rok vydání: | 2021 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Mechanical Engineering Mechanics Multiple source 01 natural sciences 7. Clean energy 010305 fluids & plasmas Nuclear Energy and Engineering 0103 physical sciences Pellet General Materials Science Development (differential geometry) 010306 general physics Actuator Particle flux Civil and Structural Engineering |
| Zdroj: | Fusion Science and Technology |
| ISSN: | 1943-7641 1536-1055 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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