A GaN-Based DC-DC Module for Railway Applications: Design Consideration and High-Frequency Digital Control
Fu, Minfan1,2; Fei, Chao2; Yang, Yuchen2; Li, Qiang2; Lee, Fred C.2
2020-02
Source PublicationIEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
ISSN0278-0046
Volume67Issue:2Pages:1638-1647
Status已发表
DOI10.1109/TIE.2019.2896279
Abstract

This paper develops a 200 W two-stage rail grade dc-dc module based on gallium-nitride devices. It converts a wide input voltage (64-160 V) to a constant output voltage (24 V). Different devices and topologies are evaluated for the target application, based on which a two-stage configuration is proposed. The first stage is a two-phase regulated buck converter working under critical mode (>400 kHz), which is followed by an unregulated 48-V/24-V LLC converter (2 MHz) for 3000-V dc isolation. The voltage regulation is discussed for the buck converter when the inductors are negatively coupled, and then the zero voltage switching (ZVS) extension is explored. However, due to the limitation of the digital controller, a tradeoff is made between the dynamic response and the footprint. The compromise solution is to use a small and slow microcontroller for high frequency control (including voltage regulation, critical mode operation, phase interleaving) and various demands (including soft start-up, external communication, and various protections). Finally, all the required functions are verified in a standalone quarter-brick prototype module. It can achieve 95.1% peak efficiency and 130 W/in(3) power density.

KeywordCritical mode (CRM) operation dc-dc module gallium-nitride (GaN) devices high-frequency digital controller railway application
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Indexed BySCI
Language英语
WOS Research AreaAutomation & Control Systems ; Engineering ; Instruments & Instrumentation
WOS SubjectAutomation & Control Systems ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000490873600072
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
EI KeywordsControllers ; Digital control systems ; Digital devices ; Electric inverters ; Gallium nitride ; III-V semiconductors ; Nitrides ; Railroads ; Rails ; Voltage regulators ; Zero voltage switching
EISSN1557-9948
WOS KeywordCONVERTERS ; HEMT
Original Document TypeArticle
Citation statistics
Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://kms.shanghaitech.edu.cn/handle/2MSLDSTB/29996
Collection信息科学与技术学院_PI研究组_傅旻帆组
Corresponding AuthorFu, Minfan
Affiliation1.ShanghaiTech Univ, Sch Informat Sci & Technol, Power Elect, Shanghai 201210, Peoples R China
2.Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Blacksburg, VA 24061 USA
First Author AffilicationSchool of Information Science and Technology
Corresponding Author AffilicationSchool of Information Science and Technology
First Signature AffilicationSchool of Information Science and Technology
Recommended Citation
GB/T 7714
Fu, Minfan,Fei, Chao,Yang, Yuchen,et al. A GaN-Based DC-DC Module for Railway Applications: Design Consideration and High-Frequency Digital Control[J]. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,2020,67(2):1638-1647.
APA Fu, Minfan,Fei, Chao,Yang, Yuchen,Li, Qiang,&Lee, Fred C..(2020).A GaN-Based DC-DC Module for Railway Applications: Design Consideration and High-Frequency Digital Control.IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,67(2),1638-1647.
MLA Fu, Minfan,et al."A GaN-Based DC-DC Module for Railway Applications: Design Consideration and High-Frequency Digital Control".IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 67.2(2020):1638-1647.
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