CAJ | 학술논문

上海光源是世界先进的三代光源，束流轨道的稳定性对用户实验至关重要。快速轨道反馈（FOFB）系统将一定带宽范围内的束流轨道扰动抑制在一定范围内，从而保证引出光源点附近束流轨道的稳定。本文对上海光源的快速轨道反馈系统进行介绍。上海光源快速轨道反馈系统为分布式的高速光纤实时反馈控制系统，采用了SVD算法计算广义逆矩阵，使用PI调节器计算校正电源参数。硬件均是在独立的商业化模块基础上进行系统集成的，软件是基于EPICS和vxWorks平台自主开发的。系统经不断优化，已达到设计指标并于2014年初投入正式运行。目前，系统对轨道噪声的抑制带宽达100 Hz ，将束流轨道的扰动抑制在0.1μm （RM S ）以下，达到世界三代光源的最好水平。
상해광원시세계선진적삼대광원，속류궤도적은정성대용호실험지관중요。쾌속궤도반궤（FOFB）계통장일정대관범위내적속류궤도우동억제재일정범위내，종이보증인출광원점부근속류궤도적은정。본문대상해광원적쾌속궤도반궤계통진행개소。상해광원쾌속궤도반궤계통위분포식적고속광섬실시반궤공제계통，채용료SVD산법계산엄의역구진，사용PI조절기계산교정전원삼수。경건균시재독립적상업화모괴기출상진행계통집성적，연건시기우EPICS화vxWorks평태자주개발적。계통경불단우화，이체도설계지표병우2014년초투입정식운행。목전，계통대궤도조성적억제대관체100 Hz ，장속류궤도적우동억제재0.1μm （RM S ）이하，체도세계삼대광원적최호수평。
Shanghai Synchrotron Radiation Facility (SSRF) is the 3rd advanced genera‐tion light source ,so the beam stability is very important for experiment users .The fast obit feedback (FOFB) system can suppress obit noise within some bandwidth to a small range ,which guarantees obit stability around extracted light .The SSRF FOFB system is a distributed fiber network with high speed and real‐time feedback control ,in which SVD algorithm was used to calculate generalized inverse matrix ,and PI regulator was applied for parameters of corrector’s power supplies .The hardware was integrated with independent commercial modules ,and the software was developed by SSRF based on EPICS and vxWorks platform .The SSRF FOFB system has satisfied designing require‐ments ,and was run into operation in 2014 after several improvements .Presently ,the orbit noise suppression bandwidth is up to 100 Hz ,and the FOFB system beam stability could be below 0.1 μm (RMS) ,which are the best level among the international 3rd generation light sources .