General architecture, implementation and performance of the digital feedback control in RFX

A. Luchetta, G. Manduchi

Research output: Contribution to conferencePaper

Abstract

RFX is a large toroidal machine in the European Programme for nuclear fusion research. It uses digital active feedback for both control of global magnetic configuration and correction of local magnetic field errors. These controls have different time requirements. Global controls must produce output reference waveforms with updating frequencies of some kSample/s and must allow a maximum delay between input and corresponding output of few ms. Conversely, the local controls need faster response with updating frequencies of the outputs up to 20 kSample/s and maximum delay of 200 μs. The I/O requirements are also different, ranging from few to many tens of input signals, depending on the specific controls. A general scalable distributed architecture has been designed and realized for the RFX feedback control systems. It is based on processor networks implemented by means of digital signal processors equipped with built-in facilities for interprocessor communication and connected to each other either directly or via a fiber-optic based network. The paper summarizes the design concepts of the system architecture and, after the description of the hardware and software structure, reports the performances obtained.
Original languageEnglish
DOIs
Publication statusPublished - 1999
Externally publishedYes
Event11th IEEE NPSS Real Time Conference - Computer Applications in Nuclear Particle and Plasma Physics, RT 1999 - Santa Fe, United States
Duration: 1 Jan 1999 → …

Conference

Conference11th IEEE NPSS Real Time Conference - Computer Applications in Nuclear Particle and Plasma Physics, RT 1999
CountryUnited States
CitySanta Fe
Period1/1/99 → …

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging
  • Nuclear and High Energy Physics
  • Computer Science Applications

Cite this

Luchetta, A., & Manduchi, G. (1999). General architecture, implementation and performance of the digital feedback control in RFX. Paper presented at 11th IEEE NPSS Real Time Conference - Computer Applications in Nuclear Particle and Plasma Physics, RT 1999, Santa Fe, United States. https://doi.org/10.1109/RTCON.1999.842602