快速轨道反馈(Fast Orbital Feedback,FOFB)系统是影响高能同步辐射光源(High Energy Photon Source,HEPS)轨道稳定性的重要因素之一,在设计时应尽可能提高FOFB系统的有效反馈带宽。基于该需求,为HEPS的FOFB系统设计了两层环路集中计算...快速轨道反馈(Fast Orbital Feedback,FOFB)系统是影响高能同步辐射光源(High Energy Photon Source,HEPS)轨道稳定性的重要因素之一,在设计时应尽可能提高FOFB系统的有效反馈带宽。基于该需求,为HEPS的FOFB系统设计了两层环路集中计算式的系统网络拓扑结构,并在此基础上设计完成了FOFB系统信号传输链路的可编程阵列逻辑(Field Programmable Gate Array,FPGA)固件算法逻辑,内容包括束流位置获取、环路数据传输、FOFB算法、电源控制接口以及系统测试等多个部分。经实验室测试验证,当前结构下的FOFB系统总延迟时间约为140μs,满足HEPS装置对FOFB系统有效反馈带宽的需求。展开更多
Purpose High Energy Photon Source(HEPS)requires high quality,high energy beam and ultra-low emittance of 0.1 nm·rad,which puts forward high demand for power supply.In this paper,a high-performance corrector magne...Purpose High Energy Photon Source(HEPS)requires high quality,high energy beam and ultra-low emittance of 0.1 nm·rad,which puts forward high demand for power supply.In this paper,a high-performance corrector magnet power supply is developed to calibrate and adjust beam track within a certain bandwidth range to ensure the stability of beam track.Methods The prototype of power supply adopts the new"One control Two"control mode,which adjusts the performance of two power supplies simultaneously based on digital control.Results The experimental results show that the stability of the power supply is lower than 20 ppm,which is far better than the design index.Voltage ripple is less than 10 mV,and other performance indexes meet the physical design requirements,which can well meet the requirements of HEPS construction.Conclusions After a lot of experiments and tests,all the parameters passed the design indicators.The successful development of this power supply has laid a foundation for the successful application of HEPS.展开更多
文摘快速轨道反馈(Fast Orbital Feedback,FOFB)系统是影响高能同步辐射光源(High Energy Photon Source,HEPS)轨道稳定性的重要因素之一,在设计时应尽可能提高FOFB系统的有效反馈带宽。基于该需求,为HEPS的FOFB系统设计了两层环路集中计算式的系统网络拓扑结构,并在此基础上设计完成了FOFB系统信号传输链路的可编程阵列逻辑(Field Programmable Gate Array,FPGA)固件算法逻辑,内容包括束流位置获取、环路数据传输、FOFB算法、电源控制接口以及系统测试等多个部分。经实验室测试验证,当前结构下的FOFB系统总延迟时间约为140μs,满足HEPS装置对FOFB系统有效反馈带宽的需求。
基金supported byNationalNatural Science Foundation of China(12005236).
文摘Purpose High Energy Photon Source(HEPS)requires high quality,high energy beam and ultra-low emittance of 0.1 nm·rad,which puts forward high demand for power supply.In this paper,a high-performance corrector magnet power supply is developed to calibrate and adjust beam track within a certain bandwidth range to ensure the stability of beam track.Methods The prototype of power supply adopts the new"One control Two"control mode,which adjusts the performance of two power supplies simultaneously based on digital control.Results The experimental results show that the stability of the power supply is lower than 20 ppm,which is far better than the design index.Voltage ripple is less than 10 mV,and other performance indexes meet the physical design requirements,which can well meet the requirements of HEPS construction.Conclusions After a lot of experiments and tests,all the parameters passed the design indicators.The successful development of this power supply has laid a foundation for the successful application of HEPS.
