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Impedance interaction modeling and analysis for bidirectional cascaded converters
Tian, Yanjun Deng, Fujin Chen, Zhe Sun, Xiaofeng Hu, Yanting
Tian, Yanjun
Deng, Fujin
Chen, Zhe
Sun, Xiaofeng
Hu, Yanting
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EPub Date
Publication Date
2015-06-30
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Abstract
For the cascaded converter system, the output impedance of source converter interacts with the input impedance of load converter, and the interaction may cause the system instability. In bidirectional applications, when the power flow is reversed, the impedance interaction also varies, which brings more uncertainty to the system stability. An investigation is performed here for showing that the forward and reverse interactions are prominently different in terms of dynamics and stability even though the cascaded converter control remains unchanged. An important guideline has been drawn for the control of the cascaded converter. That is when voltage mode converter working as the load converter; the constant power mode converter as the source converter, the system is more stable. The concluded findings have been verified by simulation and experimental results.
Citation
Tian, Y., Deng, F., Chen, Z., Sun, X., & Hu, Y. (2015, 1-5 June). Impedance interaction modeling and analysis for bidirectional cascaded converters. 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia). https://doi.org/10.1109/ICPE.2015.7168062
Publisher
Journal
Research Unit
DOI
10.1109/ICPE.2015.7168062
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PubMed Central ID
Type
Conference Contribution
Language
en
Description
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Series/Report no.
ISSN
2150-6078
EISSN
2150-6086