Seminarium

Title: Power electronics converters for particle accelerators - design and operation challenges at CERN

Speaker: Dr. Davide Aguglia, CERN - European Organization for Nuclear Research, Switzerland

Abstract: Particles accelerators require dedicated energy conversion systems to accelerate and guide particles beams. For this purposes power electronics converters are used to supply electro-magnets (warm and superconducting) and Radio Frequency equipment’s such as klystrons. This leads to a wide variety of custom designed current or voltage power converters, from the Ampère to the 100kA or from the 10V to the 100kV ranges respectively. Furthermore cycled or pulsed power converters are required for energy and/or equipment’s volume minimisation. The design specification often require special and challenging requirements which are specific to the particles accelerators domain. For instance current precision in the order of the ppm (part per million), tight EMC specifications or operation in a radioactive environment are typical power converters requirements. After a brief introduction on particles accelerators basics, the seminar presents all the different aspects and challenges for the design of such power converters. Design example of high current and/or high voltage power electronic converters are systematically presented.