Abstract
| The future circular collider (FCC) is a cutting-edge particle accelerator being planned by the
European Organization for Nuclear Research (CERN). It is designed to delve deeper into the mysteries of
the universe than its predecessor, the large hadron collider (LHC). With a circumference of over 80 km, the
FCC requires a reliable and efficient power transmission network to operate smoothly. The available power
options for the FCC include a high-voltage dc transmission and radio frequency powering networks based on
HVdc converters, such as the modular multilevel power converters or the 12-pulse thyristor rectifiers, each
providing several benefits in power transmission efficiency and cost-effectiveness. However, the converter
selection, its control, and the protection aspects must be carefully designed to meet the unique requirements
of the installation. This article examines different dc powering scenarios for the FCC and proposes a control
and protection scheme compatible with the accelerator’s operation mode. This approach ensures that the
power system meets the FCC’s specific needs and operates safely and effectively. The validity of the proposed
control and protection strategies is verified by means of detailed computer simulations. |