[1]赵宝国,李国栋,陈 博,等.一种可用于直流变压器的多谐振变换器等效建模及分析方法[J].高压电器,2019,55(09):26-33.[doi:10.13296/j.1001-1609.hva.2019.09.004]
 ZHAO Baoguo,LI Guodong,CHEN Bo,et al.Equivalent Modeling and Analysis Method of Multi-resonant Converter for DC Transformer[J].High Voltage Apparatus,2019,55(09):26-33.[doi:10.13296/j.1001-1609.hva.2019.09.004]
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一种可用于直流变压器的多谐振变换器等效建模及分析方法()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年09期
页码:
26-33
栏目:
直流变压器专题
出版日期:
2019-09-30

文章信息/Info

Title:
Equivalent Modeling and Analysis Method of Multi-resonant Converter for DC Transformer
作者:
赵宝国1 李国栋2 陈 博3 冀睿琳4 米肇丰5
(1. 国网天津市电力公司城西供电分公司, 天津 300190; 2. 国网天津市电力公司电力科 学研究院, 天津 300384; 3. 天津大学智能电网教育部重点实验室, 天津 300072; 4. 国网天津市电力公司客户服务中心, 天津 300210; 5. 国网天津市城南 供电公司, 天津 300202)
Author(s):
ZHAO Baoguo1 LI Guodong2 CHEN Bo3 JI Ruilin4 MI Zhaofeng5
(1. State Grid Tianjin Chengxi Electric Power Supply Company, Tianjin 300190, China; 2. State Grid Tianjin Electric Power Company, Tianjin 300384, China; 3. Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China; 4. State Grid Tianjin Power Costumer Service Center, Tianjin 300210, China; 5. State Grid Tianjin Chengnan Electric Power Supply Company, Tianjin 300202, China)
关键词:
多谐振 增益特性 直流变换器 双变压器谐振拓扑
Keywords:
multi-resonant gain characteristics DC converter dual transformer resonant topology
DOI:
10.13296/j.1001-1609.hva.2019.09.004
摘要:
针对直流变压器对效率和功率密度越来越高的发展需求,大功率谐振变换类拓扑被广 泛关注,然而其分析方法特别是针对多谐振变换拓扑的分析方法目前有待进一步研究。文中提 出了一种针对于双变压器谐振拓扑的等效建模及分析方法。基于该等效分析方法对CLTC变换器 进行简化和增益特性分析,在此基础上,改进并优化获得了一种新型谐振式DC-DC变换器拓扑 。该转换器保证高效率和软开关特性的同时进一步优化了变换器增益特性,具有在较窄的频率 范围内实现更宽范围电压调节的能力。最后,建立了一台2.5 kW的样机对理论分析进行了验证 ,样机最高效率为97%。
Abstract:
With the increasing demand for efficiency and power density of DC-DC transformers, high-power resonant converter topologies have attracted much attention. However, its analysis methods, especially for multi-resonant converter topologies, need to be further studied. This paper presents an equivalent modeling and analysis method for dual transformer resonant topology. Based on this equivalent analysis method, the simplification and gain characteristics of CLTC converter are analyzed, and a new resonant DC-DC converter is improved and optimized. The converter can not only achieve high efficiency with soft switching characteristics, but further optimizes the gain characteristics. It has the ability to achieve wide range voltage regulation in a narrow frequency range. Finally, a 2.5 kW prototype is built to verify the theoretical analysis, and the maximum efficiency is 97%.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-06-25; 修回日期:2019-08-28赵宝国(1973—),男,硕士,高工,研究方向为电力系统运行与控制研究。 李国栋(1978—),男,工程硕士,教授级高工,研究方向为电能质量分析。 陈 博(1989—),男,博士研究生,研究方向为谐振软开关变换器(通信作者)。
更新日期/Last Update: 2019-09-10