摘要
More than 100 power supplies are upgraded in the last two years based on full-digital power supply controller.The operation performance is getting better and better.In 2017,HIRFL power supply system operated more than 7000 h.The work of PS group focuses on CSRe.The nuclei mass measurement experiment at CSRe is the most important research in IMP in recent years.But the dipole magnet power supply of the CSRe is not stable,which impacted the operation stability of CSRe.Two new power supplies are designed and put into operation by the end of the 2017.The first test results show the current stability and the ripple are improved greatly.At the same time,a complex upgrade is done for good EMI performance at CSRe.
