Practical computation of di/dt for high-speed protection of DC microgrids

Chunpeng Li, Puran Rakhra, Patrick Norman, Pawel Niewczas, Graeme Burt, Paul Clarkson

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

2 Citations (Scopus)

Abstract

DC microgrids have the potential to radically disrupt the distribution system market due to the benefits offered in easing the integration and control of distributed renewable energy resources and energy storage systems. However, the nonzero-crossing fault current profiles associated with short-circuited
DC systems present a major challenge for protection. Isolation of faulted networks prior to the peak-current discharge of DC side capacitors may address this challenge if rapid fault detection speeds (shorter than 2ms) can be achieved. Accordingly, novel methods of utilizing the rate-of-change-of-current (di/dt) have been proposed in the literature to realize new, high-speed distance protection strategies. This paper proposes two practical methods for optimizing the numerical computation of di/dt of fault current transients and evaluates the performance of each within a MATLAB/Simulink model of a DC microgrid with artificially injected measurement noise.
LanguageEnglish
Title of host publication2017 Second IEEE International Conference on DC Microgrids (ICDCM)
Place of PublicationPiscataway, NJ
PublisherIEEE
Number of pages7
ISBN (Print)9781509044795
DOIs
Publication statusPublished - 7 Aug 2017

Fingerprint

Electric fault currents
Renewable energy resources
Fault detection
Energy storage
MATLAB
Capacitors

Keywords

  • DC microgrids
  • power system measurements
  • digital signal processing
  • power system protection

Cite this

Li, C., Rakhra, P., Norman, P., Niewczas, P., Burt, G., & Clarkson, P. (2017). Practical computation of di/dt for high-speed protection of DC microgrids. In 2017 Second IEEE International Conference on DC Microgrids (ICDCM) [1104] Piscataway, NJ: IEEE. https://doi.org/10.1109/ICDCM.2017.8001037
Li, Chunpeng ; Rakhra, Puran ; Norman, Patrick ; Niewczas, Pawel ; Burt, Graeme ; Clarkson, Paul. / Practical computation of di/dt for high-speed protection of DC microgrids. 2017 Second IEEE International Conference on DC Microgrids (ICDCM). Piscataway, NJ : IEEE, 2017.
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abstract = "DC microgrids have the potential to radically disrupt the distribution system market due to the benefits offered in easing the integration and control of distributed renewable energy resources and energy storage systems. However, the nonzero-crossing fault current profiles associated with short-circuitedDC systems present a major challenge for protection. Isolation of faulted networks prior to the peak-current discharge of DC side capacitors may address this challenge if rapid fault detection speeds (shorter than 2ms) can be achieved. Accordingly, novel methods of utilizing the rate-of-change-of-current (di/dt) have been proposed in the literature to realize new, high-speed distance protection strategies. This paper proposes two practical methods for optimizing the numerical computation of di/dt of fault current transients and evaluates the performance of each within a MATLAB/Simulink model of a DC microgrid with artificially injected measurement noise.",
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Li, C, Rakhra, P, Norman, P, Niewczas, P, Burt, G & Clarkson, P 2017, Practical computation of di/dt for high-speed protection of DC microgrids. in 2017 Second IEEE International Conference on DC Microgrids (ICDCM)., 1104, IEEE, Piscataway, NJ. https://doi.org/10.1109/ICDCM.2017.8001037

Practical computation of di/dt for high-speed protection of DC microgrids. / Li, Chunpeng; Rakhra, Puran; Norman, Patrick; Niewczas, Pawel; Burt, Graeme; Clarkson, Paul.

2017 Second IEEE International Conference on DC Microgrids (ICDCM). Piscataway, NJ : IEEE, 2017. 1104.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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AU - Clarkson, Paul

N1 - (c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.

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Li C, Rakhra P, Norman P, Niewczas P, Burt G, Clarkson P. Practical computation of di/dt for high-speed protection of DC microgrids. In 2017 Second IEEE International Conference on DC Microgrids (ICDCM). Piscataway, NJ: IEEE. 2017. 1104 https://doi.org/10.1109/ICDCM.2017.8001037