{"title":"A Novel Modular Cascaded H-Bridge High-Power Accelerator Dipole Magnet Pulse Power Supply for HIRFL-CSRm","authors":"Cheng Han;Lijun Mao;Fengjun Wu;Yuzhen Huang;Yuan Li;Wanzeng Shen;Mengyan Sun;Xiaojun Wang;Yulian Tan;Daqing Gao;Hongbin Yan;Chaohua Zhu;Yonghua Deng","doi":"10.1109/TNS.2024.3436038","DOIUrl":null,"url":null,"abstract":"We describe a new modular cascaded H-bridge high power accelerator dipole magnet pulse power supply for the Heavy Ion Research Facility in Lanzhou-Cooler-Storage-Ring main ring (HIRFL-CSRm). The power supply consists of two branches connected in parallel, each of which consists of four 360 V/1800-A power units connected in series. Each power unit uses modular high power density voltage sources in parallel for the ac/dc converter and cascaded H-bridges for the dc/dc converter. In addition, digital control strategies are implemented. The voltage source modules adopt voltage and current dual closed-loop control, and the cascaded H-bridges use current dual closed-loop control with frequency-doubling modulation and cascaded multilevel control. The effectiveness of the proposed topology scheme and control strategies is confirmed through experiments, and the thermal stability of the power supply is verified through 72-h continuous output experiments.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10616149/","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
We describe a new modular cascaded H-bridge high power accelerator dipole magnet pulse power supply for the Heavy Ion Research Facility in Lanzhou-Cooler-Storage-Ring main ring (HIRFL-CSRm). The power supply consists of two branches connected in parallel, each of which consists of four 360 V/1800-A power units connected in series. Each power unit uses modular high power density voltage sources in parallel for the ac/dc converter and cascaded H-bridges for the dc/dc converter. In addition, digital control strategies are implemented. The voltage source modules adopt voltage and current dual closed-loop control, and the cascaded H-bridges use current dual closed-loop control with frequency-doubling modulation and cascaded multilevel control. The effectiveness of the proposed topology scheme and control strategies is confirmed through experiments, and the thermal stability of the power supply is verified through 72-h continuous output experiments.
我们描述了一种新型模块化级联 H 桥大功率加速器偶极磁体脉冲电源，用于兰州重离子研究装置-冷却器-存储环主环（HIRFL-CSRm）。该电源由两个并联的分支组成，每个分支由四个串联的 360 V/1800-A 功率单元组成。每个电源单元的交流/直流转换器使用并联的模块化高功率密度电压源，直流/交流转换器使用级联 H 桥。此外，还采用了数字控制策略。电压源模块采用电压和电流双闭环控制，级联 H 型电桥采用电流双闭环控制、倍频调制和级联多电平控制。通过实验证实了所提出的拓扑方案和控制策略的有效性，并通过 72 小时连续输出实验验证了电源的热稳定性。
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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