4W1磁铁电源控制系统的改造

在北京正负电子对撞机(BEPC)中用于同步辐射~X~光研究的插入件4W1磁铁由主线圈绕组和补偿线圈绕组组成,由两台高精度直流电源(主电源和辅助电源)供电. 2004~年11月, BEPC开机使用的两台主电源和辅助电源是重新设计制造的,采用新的控制接口PSI和控制器PSC进行控制. 这套系统是在~BEPCⅡ磁铁电源控制样机PSC/PSI完成的基础上仅用1个月的时间完成的. 在运行初期经过多次调试和修改后, 安全无故障运行历时4个月,为同步辐射提供两条X光束线,保证了用户顺利地进行实验. 它是第一个投入运行的BEPCⅡ储存环控制系统的一个新系统. 介绍了基于EPICS平台开发的4W1磁铁电源新的控制系统和4W1磁铁升降流的特点以及控制升降流应用程序的研制.

Control System Reconstruction for 4W1 Magnet Power Supply in BEPC

4W1 magnet in BEPC for Synchrotron Radiation X-Ray beam lines consists of main resistance winding and auxiliary resistance winding which are respectively powered by two independent power supplies with high precision. These two power supplies called main power supply and auxiliary power supply are rebuilt with a new interface PSI (power supply interface). They are controlled by a PSC (power supply controller). This system is completed within one month after the control prototype for BEPC II magnet power supplies with PSC/PSI has been finished. During the beginning of this system running, it is modified many times to meet its operation requirements. It has been running for about four months without big problems so that it ensures synchrotron radiation research on the two X-ray beam lines. This paper describes a new control system based on EPICS for 4W1 magnet power supplies. The requirements to 4W1 magnet ramp and its ramp programming are also discussed.