Low-capacitance solid-state transformer control using an analytic filter

In the modular three-stage solid-state transformer (SST), each phase is integrated with large dc-link capacitors as energy buffers, to filter the second harmonic capacitor voltage ripple generated due to single-phase power processing. Although large dc-link capacitors reduce the coupling between sta...

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Main Authors: Sarda, Radhika, Rodriguez, Ezequiel, Yadav, Naga Brahmendra Gorla, Farivar, Glen G., Pou, Josep, Sriram, Vaisambhayana Brihadeeswara, Tripathi, Anshuman
Other Authors: Interdisciplinary Graduate School (IGS)
Format: Conference Paper
Language:English
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10356/166591
https://icpe-conf.org/program
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author Sarda, Radhika
Rodriguez, Ezequiel
Yadav, Naga Brahmendra Gorla
Farivar, Glen G.
Pou, Josep
Sriram, Vaisambhayana Brihadeeswara
Tripathi, Anshuman
author2 Interdisciplinary Graduate School (IGS)
author_facet Interdisciplinary Graduate School (IGS)
Sarda, Radhika
Rodriguez, Ezequiel
Yadav, Naga Brahmendra Gorla
Farivar, Glen G.
Pou, Josep
Sriram, Vaisambhayana Brihadeeswara
Tripathi, Anshuman
author_sort Sarda, Radhika
collection NTU
description In the modular three-stage solid-state transformer (SST), each phase is integrated with large dc-link capacitors as energy buffers, to filter the second harmonic capacitor voltage ripple generated due to single-phase power processing. Although large dc-link capacitors reduce the coupling between stages of the SST and simplify the controller design, they compromise the reliability, safety and power density of the SST. Accordingly, a low-capacitance SST is desirable to address these challenges. To provide a high-bandwidth control for the low-capacitance SST, this paper proposes using an analytic filtering scheme rather than the low-pass filters used in conventional SST control schemes. A portion of the second harmonic power ripple in the high-voltage dc-link capacitors is processed by the SST’s dc-dc stage to facilitate the use of low capacitance. The effectiveness of the proposed control is demonstrated through a simulation study in PLECS.
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spelling ntu-10356/1665912023-09-19T04:18:44Z Low-capacitance solid-state transformer control using an analytic filter Sarda, Radhika Rodriguez, Ezequiel Yadav, Naga Brahmendra Gorla Farivar, Glen G. Pou, Josep Sriram, Vaisambhayana Brihadeeswara Tripathi, Anshuman Interdisciplinary Graduate School (IGS) School of Electrical and Electronic Engineering 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia) Energy Research Institute @ NTU (ERI@N) Engineering::Electrical and electronic engineering::Electric power::Production, transmission and distribution Engineering::Electrical and electronic engineering::Power electronics Analytic Filter Low-Pass Filter Solid-State Transformer In the modular three-stage solid-state transformer (SST), each phase is integrated with large dc-link capacitors as energy buffers, to filter the second harmonic capacitor voltage ripple generated due to single-phase power processing. Although large dc-link capacitors reduce the coupling between stages of the SST and simplify the controller design, they compromise the reliability, safety and power density of the SST. Accordingly, a low-capacitance SST is desirable to address these challenges. To provide a high-bandwidth control for the low-capacitance SST, this paper proposes using an analytic filtering scheme rather than the low-pass filters used in conventional SST control schemes. A portion of the second harmonic power ripple in the high-voltage dc-link capacitors is processed by the SST’s dc-dc stage to facilitate the use of low capacitance. The effectiveness of the proposed control is demonstrated through a simulation study in PLECS. Submitted/Accepted version 2023-07-31T01:40:44Z 2023-07-31T01:40:44Z 2023 Conference Paper Sarda, R., Rodriguez, E., Yadav, N. B. G., Farivar, G. G., Pou, J., Sriram, V. B. & Tripathi, A. (2023). Low-capacitance solid-state transformer control using an analytic filter. 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia). https://dx.doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213621 https://hdl.handle.net/10356/166591 10.23919/ICPE2023-ECCEAsia54778.2023.10213621 https://icpe-conf.org/program en © 2023 KIPE. Published by 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: https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213621. application/pdf
spellingShingle Engineering::Electrical and electronic engineering::Electric power::Production, transmission and distribution
Engineering::Electrical and electronic engineering::Power electronics
Analytic Filter
Low-Pass Filter
Solid-State Transformer
Sarda, Radhika
Rodriguez, Ezequiel
Yadav, Naga Brahmendra Gorla
Farivar, Glen G.
Pou, Josep
Sriram, Vaisambhayana Brihadeeswara
Tripathi, Anshuman
Low-capacitance solid-state transformer control using an analytic filter
title Low-capacitance solid-state transformer control using an analytic filter
title_full Low-capacitance solid-state transformer control using an analytic filter
title_fullStr Low-capacitance solid-state transformer control using an analytic filter
title_full_unstemmed Low-capacitance solid-state transformer control using an analytic filter
title_short Low-capacitance solid-state transformer control using an analytic filter
title_sort low capacitance solid state transformer control using an analytic filter
topic Engineering::Electrical and electronic engineering::Electric power::Production, transmission and distribution
Engineering::Electrical and electronic engineering::Power electronics
Analytic Filter
Low-Pass Filter
Solid-State Transformer
url https://hdl.handle.net/10356/166591
https://icpe-conf.org/program
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