Understanding DC Partial Discharge: Recent Progress, Challenges, and Outlooks

Chuanyang Li; Tohid Shahsavarian; Mohamadreza Arab Baferani; Kerry Davis; Yang Cao; Di Zhang

doi:10.17775/CSEEJPES.2021.04740

CSEE Journal of Power and Energy Systems 2022, 8(3): 894-909 https://doi.org/10.17775/CSEEJPES.2021.04740

Open Access | Issue | Published: 30 December 2021

Understanding DC Partial Discharge: Recent Progress, Challenges, and Outlooks

Show Author's Information Hide Author's Information Chuanyang Li, Tohid Shahsavarian, Mohamadreza Arab Baferani, Kerry Davis, Yang Cao(

), Di Zhang

Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT 06269, USA

Naval Postgraduate School, Monterey, CA 93943, USA

Keywords:

Charge injection, surface charging, DC power systems, partial discharges

Cite this article:

Li C, Shahsavarian T, Baferani MA, et al. Understanding DC Partial Discharge: Recent Progress, Challenges, and Outlooks. CSEE Journal of Power and Energy Systems, 2022, 8(3): 894-909. https://doi.org/10.17775/CSEEJPES.2021.04740

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Abstract Full text About this article

Abstract

As a non-destructive local gas breakdown phenomenon within a surface or bulk cavity surrounded by insulation, partial discharge (PD) contains important information which can be used to evaluate and diagnose electrical insulation systems. In this paper, distinctive characteristics of PD for DC versus AC are reviewed. A summary of experimental studies on DC PD in different insulation coordinations is presented, including PD in gaseous insulating media, PD in solid insulating media and PD in liquid insulating media. Conclusions and some thoughts based on existing studies are provided, and challenges and suggestions for future studies are given. This paper can serve as a guide reference for readers to learn the background and state-of-the-art of DC PD studies. More importantly, it is hopeful that this study can inspire novel ideas for further advancing fundamental research of DC PD mechanisms and PD mitigation methods.

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About this article

Understanding DC Partial Discharge: Recent Progress, Challenges, and Outlooks

Show Author's information Hide Author's Information Chuanyang Li, Tohid Shahsavarian, Mohamadreza Arab Baferani, Kerry Davis, Yang Cao(

), Di Zhang

Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT 06269, USA

Naval Postgraduate School, Monterey, CA 93943, USA

Abstract

Keywords: Charge injection, surface charging, DC power systems, partial discharges

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Received: 28 June 2021

Revised: 13 September 2021

Accepted: 04 December 2021

Published: 30 December 2021

Issue date: May 2022

Understanding DC Partial Discharge: Recent Progress, Challenges, and Outlooks

Understanding DC Partial Discharge: Recent Progress, Challenges, and Outlooks

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