加速器直流电源纹波抑制研究  

Research on DC Power Supply Ripple Suppression in Accelerator

作　　者：杨新华[1,2] 王志强 黄玉珍[3] 史春逢[3] 高大庆[3] YANG Xinhua;WANG Zhiqiang;HUANG Yuzhen;SHI Chunfeng;GAO Daqing(College of Electrical and Information Engineering, Lanzhou University of Technology,Lanzhou 730050,China;Key Laboratory of Gansu Advanced Control for Industrial Processes,Lanzhou 730050,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050 [2]甘肃省工业过程先进控制重点实验室,甘肃兰州730050 [3]中国科学院近代物理研究所,甘肃兰州730000

出　　处：《原子能科学技术》2018年第9期1722-1728,共7页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(11405239);大型电气传动系统与装备技术国家重点实验室开放基金资助项目(SKLLDJ052016011)

摘　　要：为降低加速器直流励磁电源的输出电流纹波,研究了一种抑制电源输出电流纹波的直流有源滤波器(DAF)。采用检测负载电压的方式,解决了电流纹波幅值小难以检测的问题。通过控制DAF吸收或注入谐波电流来降低电压纹波,进而达到降低电流纹波的目的。设计的buck/boost电路作为有源滤波器的主电路,能维持储能电容电压的稳定,省去了整流电路。对设计方案进行了仿真并搭建了实验样机进行验证,实验结果表明,设计的DAF对低频纹波有一定的抑制效果。In order to reduce the output current ripple of the accelerator DC excitation power supply,a DC active filter(DAF)for suppressing output current ripple of power supply was studied.Using the method of detecting the load voltage,the problem that the current ripple amplitude is very small and difficult to detect was solved.The objective voltage ripple was reduced by controlling the DAF to inject or absorb harmonic current,and the purpose of reducing the current ripple was achieved.The buck/boost circuit was designed as the main circuit of the active filter,which can maintain the stability of the storage capacitor voltage and eliminate the rectifier circuit.The design was simulated and an experimental prototype for verification was built.The experimental results show that the designed DAF has a certain suppression effect on low frequency ripple.

关 键 词：磁铁电源 电流纹波 直流有源滤波器 buck/boost电路 

分 类 号：TM921.5[电气工程—电力电子与电力传动] TL503.5[核科学技术—核技术及应用]