{"title":"双有源桥式DC-DC变换器的简化状态轨迹分析方法","authors":"Ruiqi Ding, Chao Tang, Chuan Sun, Xiaodong Li, Akshay Rathore","doi":"10.1049/ell2.70267","DOIUrl":null,"url":null,"abstract":"<p>To facilitate the analysis and design of bidirectional dual-active-bridge (DAB) dc-dc converters, a new and simplified state-trajectory analysis approach is first proposed in this paper, which reveals the effects of terminal voltages on the inductor current in each switching interval. The proposed trajectory can be used to illustrate different steady states, the zero-voltage switching (ZVS) conditions and the transient transition between different steady states. Based on this state-trajectory method, two simple transient modulation strategies are derived naturally for a DAB converter under single-phase-shift control. Results from simulation and experimental tests prove that the obtained transient modulation strategies are able to achieve fast and overshoot-free transition from one load level to another without introducing dc bias in the inductor current.</p>","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70267","citationCount":"0","resultStr":"{\"title\":\"Simplified State-Trajectory Analysis Method for Dual-Active-Bridge DC-DC Converters\",\"authors\":\"Ruiqi Ding, Chao Tang, Chuan Sun, Xiaodong Li, Akshay Rathore\",\"doi\":\"10.1049/ell2.70267\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>To facilitate the analysis and design of bidirectional dual-active-bridge (DAB) dc-dc converters, a new and simplified state-trajectory analysis approach is first proposed in this paper, which reveals the effects of terminal voltages on the inductor current in each switching interval. The proposed trajectory can be used to illustrate different steady states, the zero-voltage switching (ZVS) conditions and the transient transition between different steady states. Based on this state-trajectory method, two simple transient modulation strategies are derived naturally for a DAB converter under single-phase-shift control. Results from simulation and experimental tests prove that the obtained transient modulation strategies are able to achieve fast and overshoot-free transition from one load level to another without introducing dc bias in the inductor current.</p>\",\"PeriodicalId\":11556,\"journal\":{\"name\":\"Electronics Letters\",\"volume\":\"61 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2025-04-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70267\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electronics Letters\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1049/ell2.70267\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronics Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/ell2.70267","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Simplified State-Trajectory Analysis Method for Dual-Active-Bridge DC-DC Converters
To facilitate the analysis and design of bidirectional dual-active-bridge (DAB) dc-dc converters, a new and simplified state-trajectory analysis approach is first proposed in this paper, which reveals the effects of terminal voltages on the inductor current in each switching interval. The proposed trajectory can be used to illustrate different steady states, the zero-voltage switching (ZVS) conditions and the transient transition between different steady states. Based on this state-trajectory method, two simple transient modulation strategies are derived naturally for a DAB converter under single-phase-shift control. Results from simulation and experimental tests prove that the obtained transient modulation strategies are able to achieve fast and overshoot-free transition from one load level to another without introducing dc bias in the inductor current.
期刊介绍：
Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews.
Scope
As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below.
Antennas and Propagation
Biomedical and Bioinspired Technologies, Signal Processing and Applications
Control Engineering
Electromagnetism: Theory, Materials and Devices
Electronic Circuits and Systems
Image, Video and Vision Processing and Applications
Information, Computing and Communications
Instrumentation and Measurement
Microwave Technology
Optical Communications
Photonics and Opto-Electronics
Power Electronics, Energy and Sustainability
Radar, Sonar and Navigation
Semiconductor Technology
Signal Processing
MIMO
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