Analysis and design of a control system for the 100T pulsed high magnetic field facility at WHMFC

Abstract

A pulsed high magnetic field of 90.6 T has been achieved by discharging the energy in a capacitor bank to a nondestructive magnet at Wuhan National High Magnetic Field Center (WHMFC), and recently, the project for a 100-T magnetic field has been under development. The pulsed magnet with a 100-T magnetic field will be composed of three coils, which are driven by three types of power sources. Based on the existing control subsystems of these power sources, the design of the control system that can control different types of power supplies to discharge would be taken into consideration for the implementation of the 100-T magnetic field. This paper first analyzes the control process for the 100-T system, which can divided into three stages, and the time requirement for each stage. Based on the analysis, the structure and main functions of the control system are discussed, and then the main control program and the global control block are designed. To protect the safety of the system, some protection measures are finally discussed. This paper provides design bases for the realization of the control system.