高能同步辐射光源储存环快校正磁铁电源设计

高能同步辐射光源（HEPS）具有0.1 nm·rad的超低发射度，对束流稳定度提出了较高要求，研制1台高性能快校正磁铁电源用来提高快速轨道反馈系统（FOFB）的性能以提升束流稳定度。电源样机采用新颖的多电平级联拓扑结构提升电源样机的动态性能，使用基于数字控制的新颖控制方法实现样机的动态性能提升。软件仿真与样机试验数据证明，电源样机具有10 kHz小信号带宽、电源阶跃响应时间小于70 μs、输出电流纹波低于20 ppm，电源样机可很好地满足HEPS建设需求。

Design of Fast Corrector Magnet Power Supply for HEPS Storage Ring

The high energy photon source (HEPS) has an ultra-low emittance of 0.1 nm·rad, which puts forward high requirement for beam stability. A high performance fast corrector magnet power supply was developed to improve the performance of the fast orbit feedback system to improve the beam stability. The prototype adopted a novel multi-level cascade topology structure to improve the dynamic performance, and a novel control method based on digital control was used to improve the dynamic performance of the prototype. Software simulation and the prototype test data show that the prototype has a small signal bandwidth of 10 kHz, step response time lower than 70 μs, output current ripple of less than 20 ppm. The power supply prototype can meet the requirement of HEPS.