Realization of digital AFC and AVC based on beam loading in RF system of a petal-shaped E-beam irradiator

SONGRuiying~1 YANG Jihua~2 SHI Huidong~1 LVChaofeng~1 SUQingjie~1 SONG Ruiqing~1 1

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Realization of digital AFC and AVC based on beam loading in RF system of a petal-shaped E-beam irradiator

更新时间：2021-03-05

- Realization of digital AFC and AVC based on beam loading in RF system of a petal-shaped E-beam irradiator
- NUCLEAR TECHNIQUES Vol. 34, Issue 12, (2011)
- 作者机构：
  
  1. 宁波超能科技股份有限公司
  2. 航天二院23所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL503.2
- Published：01 December 2011
- 稿件说明：
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[1]宋瑞英,杨继华,施惠栋,吕朝峰,苏庆杰,宋瑞清.花瓣形加速器高频系统基于束流负载的数字AFC和AVC实现[J].核技术,2011,34(12):916-920.

SONGRuiying~1 YANG Jihua~2 SHI Huidong~1 LVChaofeng~1 SUQingjie~1 SONG Ruiqing~1 1. Realization of digital AFC and AVC based on beam loading in RF system of a petal-shaped E-beam irradiator[J]. Nuclear techniques, 2011, 34(12): 916-920.
[1]宋瑞英,杨继华,施惠栋,吕朝峰,苏庆杰,宋瑞清.花瓣形加速器高频系统基于束流负载的数字AFC和AVC实现[J].核技术,2011,34(12):916-920. DOI：

SONGRuiying~1 YANG Jihua~2 SHI Huidong~1 LVChaofeng~1 SUQingjie~1 SONG Ruiqing~1 1. Realization of digital AFC and AVC based on beam loading in RF system of a petal-shaped E-beam irradiator[J]. Nuclear techniques, 2011, 34(12): 916-920. DOI：

摘要

介绍了花瓣形加速器高频功率源-加速腔-束流耦合系统

得出考虑束流负载和腔失谐时对幅频特性的稳定性要求

提出了基于数字AFC和AVC控制的低电平控制器实现方案

阐述了AFC和PID控制工作过程与实现方法

测得腔压稳定度在8%以内

数字AFC和AVC回路闭合功能通过了24 h拷机试验。

Abstract

In this paper

we report the coupling system of RF power

accelerating cavity and beam acceleration of the petal-shaped accelerator developed at Ningbo Superpower High-tech Co.

Ltd.The stability requirement on amplitude-frequency characteristics are derived by considering the beam loading and cavity detuning.The implementation scheme of low level controller based on digital AFC and AVC is proposed.The working process and implementation method of AFC and PID algorithm are described.Test results show that the stability index of cavity voltage is less than 0.8%

and the digital AFC and AVC closed-loop function has been proved by a 24-h test operation of the system.

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