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- Engblom, C., et al.
(författare)
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Overview of some feedback-&control systems at synchrotron SolEIL
- 2016
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Ingår i: Proceedings of the 11th International Workshop on Personal Computers and Particle Accelerator Controls, PCaPAC 2016. - 9783954501892 ; , s. 132-136
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Konferensbidrag (refereegranskat)abstract
- This paper gives an overview of some feedback & control systems at Synchrotron SOLEIL that are in use or in development today. Beam stability is crucial and adressed in all SOLEIL aspects; Fast Orbit Feedback is a multi-input multi-output control system made to stabilize beam position perturbations in the low- & high frequency band. In addition, active RF cavities are used to maintain stable beam energy & spread as well as keeping electron density even throughout the storage ring. Beam stability also comes from feedforward non-linear control in particle trajectory compensation on both sides of electromagnetic undulators. On some beamlines, multi-actuator piezos or pneumatics are used to regulate photon flux to keep within detector operating range; a method to maximize the photon flux while still keeping below detector damage thresholds. Currently in development & at the sample stage level, the Nanoprobe Project collaboration (MAXIV & SOLEIL) focuses on sample stabilization during step- & fly- scans which is realized through multi-axis nano-positioning with high- & low- frequency closed-loop control implementing interferometer feedback &/or compensation tables.
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| 2. |
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| 3. |
- Hadjsaid, Nouredine, et al.
(författare)
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Integrated ICT framework for distribution network with decentralized energy resources : Prototype, design and development
- 2010
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Konferensbidrag (refereegranskat)abstract
- Electrical Distribution Systems (EDS) are facing ever-increased complexity due, in part, to fast growing consumer demands and the integration of large amounts of distributed energy resources. The conventional operation modes need to be adapted to the significant changes. With advanced Information and Communication Technology (ICT) infrastructure and sophisticated new functionalities for energy management, "Smart Grid" is becoming the most forward-looking solution to address these facing challenges. Having initiated a conceptual model, architecture, and implementation plan for the system in previous European research projects (CRISP [1] and MICROGRID [2]). A new integrated platform for ICT based distributed control and local management is currently being designed, with the goal of demonstrating the feasibility of these new concepts. The overarching design of coordination and control between the real automation devices and power system components will be carried out with an analogical micro network (μGrid) including real power operation components such as RTUs. Therefore, some high level functions relied on advanced ICT system such as fault management; voltage control and adaptive reconfiguration are developed and tested for this purpose.
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