Lightning Impulse Protection for Grid-connected Solid-state Transformers

Chunmeng Xu, Jia Wei, Liran Zheng, Xiangyu Han, Maryam Saeedifard, Rajendra Prasad Kandula, Karthik Kandasamy, Deepak Divan, Lukas Graber

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

A lightning protection scheme is designed and experimentally verified for protecting a 7.2 kV soft-switching solid-state transformer from lightning-induced overvoltage surges. The general design procedures of the lightning protection scheme as well as device selection guidelines are discussed in detail. A prototype has been constructed based on economical, off-the-shelf surge protective devices with unique choices of gapped metal-oxide varistors and air-core inductors. Lightning impulse tests have been performed to evaluate the lightning impulse protective level of the protection scheme, which also experimentally confirm a satisfactory protective ratio between the lightning protection scheme and the solid-state transformer according to the criteria of IEEE Std. C62.22. Working as an independent surge attenuator, the lightning protection scheme is able to protect various kinds of grid-connected converters and facilitate their field deployment in distribution systems.

Original languageEnglish
Title of host publicationECCE 2020 - IEEE Energy Conversion Congress and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6057-6064
Number of pages8
ISBN (Electronic)9781728158266
DOIs
StatePublished - Oct 11 2020
Externally publishedYes
Event12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 - Virtual, Detroit, United States
Duration: Oct 11 2020Oct 15 2020

Publication series

NameECCE 2020 - IEEE Energy Conversion Congress and Exposition

Conference

Conference12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
Country/TerritoryUnited States
CityVirtual, Detroit
Period10/11/2010/15/20

Funding

ACKNOWLEDGMENT The information, data, or work presented herein was funded in part by the Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy, under Award Number DE-AR0000899 in the CIRCUITS program monitored by Dr. Isik Kizilyalli. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

FundersFunder number
U.S. Department of EnergyDE-AR0000899
Advanced Research Projects Agency - Energy

    Keywords

    • Basic insulation level (BIL)
    • insulation coordination
    • lightning
    • metal-oxide varistor (MOV)
    • power electronic transformer (PET)
    • solid state transformer (SST)
    • surge protection

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