A Control System of New Magnet Power Converter for J-PARC Main Ring Upgrade

TL;DR

This paper presents a newly developed digital control system for magnet power converters aimed at upgrading the J-PARC Main Ring to achieve higher beam power, including design details and test results.

Contribution

It introduces a novel digital control system specifically designed for magnet power converters in the J-PARC upgrade, emphasizing reproducibility and control algorithm simplicity.

Findings

Successful design implementation of the control system

Test results demonstrate effective control of small quadrupole magnets

Enhanced reproducibility for mass production

Abstract

Japan Proton Accelerator Research Complex (J-PARC) aims at a MW-class proton accelerator facility. One of the promising solutions for increasing the beam power of the Main Ring (MR) is converters of the main magnets with new ones for this upgrade. We have a plan to replace and develop the power converters of main magnets for this upgrade. According to develop the new power converter. We have developed a new control system for the new power converters. This control system consists of four parts : the current measuring device, the feedback control system, the gate pulse generator and the slow control system. Considering a reproducibility in the mass-production and the facilitation of the control algorithm, the digital control system is adopted. We will report the design of this control system and some test result with a new power converter for small quadrupole magnets.