Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/87059
Title: Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application
Authors: Cao, Shuyu
Sriram, Vaisambhayana Brihadeeswara
Dehghani Tafti, Hossein
Ravi Kishore, Kanamarlapudi Venkata
Yeo, Howe Li
Tripathi, Anshuman
Pou, Josep
Keywords: Solid State Transformer (SST)
Dual Active Bridge (DAB)
Issue Date: 2017
Source: Cao, S., Sriram, V. B., Dehghani Tafti, H., Ravi Kishore, K. V., Yeo, H. L., Tripathi, A., et al. (2017). Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application. 2017 Asian Conference on Energy, Power and Transportation Electrification (ACEPT 2017).
Abstract: This paper presents an effective two stage DAB charging-up control method for modular DC-DC converters with low voltage side common DC bus voltage starting from zero. In 1st stage of charging, the DAB controller is modified to allow variable duty cycle control of medium voltage side DAB converter. In this stage, a constant charging-up current is applied so that low voltage side DC link voltage is charged up linearly. In the 2nd stage of charging control, the normal dual voltage and current control loops are applied. At the end of 2nd charging up stage, the DAB controller is ready for normal power regulation. The proposed DAB charging control method is applicable for modular SST start-up application for both grid tied and standalone application. The important advantage of the proposed DAB charging control method is that the DC-DC converter performance is robust to DC-DC converter circuit parameter variation and operation condition variation among DAB modules. Another attractive advantage is that the proposed solution is purely DAB control algorithm change without requiring extra circuit component in start-up charging process.
URI: https://hdl.handle.net/10356/87059
http://hdl.handle.net/10220/44295
DOI: 10.1109/ACEPT.2017.8168624
Rights: © 2017 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. The published version is available at: [http://dx.doi.org/10.1109/ACEPT.2017.8168624].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Conference Papers

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