Upgrade of the cathode HVPS system for 4.6 GHz LHCD on EAST using high speed PSM
文献类型：期刊论文
| 作者 | Zhang Jian1,2 ; Rui Junhui1,2; Gao Zongqiu1,2; Guo Fei1; Huang Yiyun1
|
| 刊名 | FUSION ENGINEERING AND DESIGN
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 171 |
| 关键词 | LHCD PSM High frequency modulation Control system |
| ISSN号 | 0920-3796 |
| DOI | 10.1016/j.fusengdes.2021.112539 |
| 通讯作者 | Huang Yiyun(yyhuang@ipp.ac.cn) |
| 英文摘要 | The 4.6GHz LHCD system is an important part of the auxiliary heating system on EAST tokamak. The cathode high voltage power supply(HVPS) is based on pulse step modulation (PSM) technology, in which 64 modules are used to output 50kVDC in series. The modulation frequency of single PSM module is 50Hz, it switch on and off every 20ms, so the regulation speed of system is limited. In the face of the interference caused by the voltage fluctuation of the grid side during the tokamak operation, the HVPS cannot make more rapid response. It means that a large fluctuation of the output voltage will be produced and output performance of microwave will be affected. In order to improve the regulation speed and anti-interference capability of system, the high frequency PSM module with 1kHz modulation frequency capability was designed to replace some of the original low frequency modules. The fluctuation of output voltage was reduced by the rapid regulation capability of the high frequency module. The experimental results show that the output voltage fluctuation rate of the upgraded power supply is reduced by 50%, which better meets the control requirements of klystron for voltage accuracy and stability, and the reliability of the system is guaranteed. |
| 资助项目 | National Key Research & Development Plan[2017YFE0300401] ; CAS Key Technology Talent Program |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000703599600004 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key Research & Development Plan ; CAS Key Technology Talent Program |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/124885]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Huang Yiyun |
| 作者单位 | 1.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Jian,Rui Junhui,Gao Zongqiu,et al. Upgrade of the cathode HVPS system for 4.6 GHz LHCD on EAST using high speed PSM[J]. FUSION ENGINEERING AND DESIGN,2021,171. |
| APA | Zhang Jian,Rui Junhui,Gao Zongqiu,Guo Fei,&Huang Yiyun.(2021).Upgrade of the cathode HVPS system for 4.6 GHz LHCD on EAST using high speed PSM.FUSION ENGINEERING AND DESIGN,171. |
| MLA | Zhang Jian,et al."Upgrade of the cathode HVPS system for 4.6 GHz LHCD on EAST using high speed PSM".FUSION ENGINEERING AND DESIGN 171(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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