加速器电源电流突变补偿技术的研究
为解决加速器电源因电网电压陷落导致电源输出电流突变问题，提出一种基于磁铁负载侧的动态电流补偿方法，该方法以并联方式在负载端进行电流补偿。本文对其原理进行了可行性分析，用带通滤波器提取突变波形并实时计算通过比例积分（Proportional Integral，PI）控制产生反向突变电流以达到抑制的效果，并通过了原理性仿真以及样机验证。从实验结果验证了方案的合理性，补偿电流的响应速度能够跟上突变电流，对于突变电流确实有明显的抑制效果。...
Saved in:
| Published in | 核技术 Vol. 41; no. 3; pp. 20 - 24 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院上海应用物理研究所 嘉定园区 上海 201800
10.03.2018
中国科学院大学 北京 100049%中国科学院上海应用物理研究所 嘉定园区 上海 201800 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-3219 |
| DOI | 10.11889/j.0253-3219.2018.hjs.41.030104 |
Cover
| Summary: | 为解决加速器电源因电网电压陷落导致电源输出电流突变问题，提出一种基于磁铁负载侧的动态电流补偿方法，该方法以并联方式在负载端进行电流补偿。本文对其原理进行了可行性分析，用带通滤波器提取突变波形并实时计算通过比例积分（Proportional Integral，PI）控制产生反向突变电流以达到抑制的效果，并通过了原理性仿真以及样机验证。从实验结果验证了方案的合理性，补偿电流的响应速度能够跟上突变电流，对于突变电流确实有明显的抑制效果。 |
|---|---|
| Bibliography: | 31-1342/TL HUANG Shan1,2, TAN Songqing1, LI Rui1（1.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;2.University of Chinese Academy of Sciences, Beijing 100049, China） Accelerator power supply, Abrupt current, Bandpass filtering, PI control [Background] Shanghai Synchrotron Radiation Facility （SSRF） is an advanced third-generation synchrotron radiation electron accelerator, it requires the magnetic field of long-term stability and high-accuracy. Hence the accelerator power supply is requested to keep the exciting current stable. [Purpose] This study aims to propose a dynamic current compensating method based on the load side of magnet to solve the problem of abrupt current caused by power grid voltage drop. [Methods] Band-pass filter was applied to the extraction of the abrupt current waveform, and the opposite polarity with the abrupt current was generated by real-time computation of the proportional integral （PI） controller. The compensator compensates |
| ISSN: | 0253-3219 |
| DOI: | 10.11889/j.0253-3219.2018.hjs.41.030104 |