Cited by 506Advanced DC-DC ConvertersMultilevel Inverters and ConvertersHigh-Voltage Power Transmission Systems

The DOI matches its Crossref record; 48 of the 49 references it cites were found in a registry or an index.

Applicability of solid-state transformers in today's and future distribution grids

Huber, Jonas E., Kolar, Johann W.·2019·IEEE Transactions on Smart Grid

Abstract

Solid-state transformers (SSTs) are power electronic converters that provide isolation between a medium-voltage and a low-voltage (LV) system using medium-frequency transformers. The power electronic stages enable full-range control of the terminal voltages and currents and hence of the active and reactive power flows. Thus, SSTs are envisioned as key components of a smart grid. Various SST concepts have been proposed and analyzed in literature concerning technical aspects. However, several issues could potentially limit the applicability of SSTs in distribution grids. Therefore, this paper discusses four essential challenges in detail. It is found that SSTs are less efficient than low-frequency transformers (LFTs), yet their prospective prices are significantly higher. Furthermore, SSTs are not compatible with the protection schemes employed in today's LV grids, i.e., they are not drop-in replacements for LFTs. The limited voltage control range typically required in distribution grids can be provided by competing solutions, which do not involve power electronics (e.g., LFTs with tap changers), or by hybrid transformers, where the comparably inefficient power electronic stage processes only a fraction of the total power. Finally, potential application scenarios of SSTs (ac-dc, dc-dc, weight/space limited applications) are discussed. All considerations are distilled into an applicability flowchart for SST technology.

Overview

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Registry

Crossref · 10.1109/tsg.2017.2738610

Cites

48 of 48 references verified0 citation errors · 0 not checkable

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Citations

Cites

Show all 49 references

Research works printed but not linked: 12

  1. 2013, Vacutap VV Flyer
  2. 2012, Low-Voltage Fuses Catalogue
  3. 2017, Preise 2017
  4. brück, 2016, Informationsportal Regelbare Ortsnetztransformatoren
  5. 2017, Altivar 61 Active Front End
  6. 2014, Energy turnaround national research programme 70 SwiSS solid-state SiC transformer
  7. liserre, 2017, The highly efficient and reliable smart transformer (HEART)
  8. 2017, Verteiltransformatoren Freiatmend
  9. 2016, PRT-50 Single-Phase Pad-Mounted 50kVA Power Regulating Transformer
  10. 2015, PCS100 AVC-20 Active Voltage Conditioner for Voltage Regulation
  11. 2013, Distribution Voltage Regulators
  12. kolar, 1989, Measurement and determination of the instantaneous power flow values in three-phase PWM converter systems based on the space vector calculus, Proc 3rd Symp Meas Elect Electron Power Syst (IMEKO), 117

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Metadata

Authors
Huber, J. E., & Kolar, J. W.
Affiliations
ETH Zurich (CH)
Venue
IEEE Transactions on Smart Grid
Published
2019-01
Volume
10
Issue
1
Pages
317-326
ISSN
  • 1949-3053 (ISSN-L)
  • 1949-3061
OpenAlex
W2744051429
Cited by
506
References
49
Citations by year
2026: 36 · 2025: 68 · 2024: 71 · 2023: 92 · 2022: 69 · 2021: 62 · 2020: 57 · 2019: 40
FWCI
12.28
Type
journal article
Language
en
Open access
closed
Locations
IEEE Transactions on Smart Grid (publishedVersion)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › High-Voltage Power Transmission Systems
Keywords
solid-state transformer, distribution networks, medium frequency transformer, power converters, low-frequency transformers, tap changers, hybrid transformer, voltage regulation, power flow control, protection schemes, smart grid, efficiency, applicability assessment

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