10-14 September 2018
Europe/Zurich timezone

M.C. Bastos / M. Martino

12 Sep 2018, 09:00
1h 30m
503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber


Show room on map


Michele Martino (CERN) Miguel Cerqueira Bastos (CERN)


Measurement and Acquisition for High Precision Power Converter Current Regulation for Particles Accelerators

Particle accelerators use magnetic fields produced by electro-magnets to control the trajectory of particles beams. The magnets are supplied by electrical power converters, which can be seen as current sources employing digital control to accurately follow a given current reference function. Since the current delivered by the power converters has a direct impact on the trajectory of the particle beams, it needs to be controlled with extremely high precision. The key elements determining the precision performance of power converters are: the analog measurement chain of the current (sensors, transducers, conditioning electronics), the Analog to Digital Converters, and the digital control (algorithm) itself. With a focus on these three key elements this presentation will discuss the challenges faced and the technologies used to control electrical currents with part per million level uncertainty.

Presentation Materials