The New Modular Control System for Power Converters at CERN

The CERN accelerator complex consists of several generations of particle accelerators, with around 5000 power converters supplying regulated current and voltage to normal and superconducting magnet circuits. Today around 12 generations of converter control platforms can be found in the accelerator complex, ranging in age and technology. The diversity of these platforms has a significant impact on operability, maintenance and support of power converters. Over the past few years a new generation of modular controls called RegFGC3 has been developed by CERN’s power conversion group, with a goal to provide a standardised control platform, supporting a wide variety of converter topologies. The aim of this project is to reduce maintenance costs by decreasing the variety and diversity of control systems whilst simultaneously improving the operability and reliability of power converters and their controls. This paper describes the state of the on-going design and realization of the RegFGC3 platform, focusing on functional requirements using Thyristor based converters as an example. Presented at ICALEPCS, 17-23 October 2015, Melbourne, Australia Geneva, Switzerland October, 2015 THE NEW MODULAR CONTROL SYSTEM FOR POWER CONVERTERS AT CERN M. Di Cosmo, B. Todd CERN, Geneva, Switzerland