Skip to main navigation Skip to search Skip to main content

Inverter Based Islanded Microgrid Protection Using Discrete Wavelet Transform

  • Ahmed M. Abdelemam*
  • , Hatem H. Zeineldin
  • , Ahmed Al-Durra
  • , Mohamed Shawky El Moursi
  • , Ehab F. El-Saadany
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

6 Scopus citations

Abstract

One of the main drawbacks of the Inverter Interfaced Distributed Generator (IIDG) is that the protection of the inverter switch limits the fault current through the inverter control system to be almost equal to the rated current. As a result, traditional overcurrent relays cannot operate to protect the distribution lines in islanded microgrid connected with IIDG during different types of short circuits. In this paper, a new protection scheme is proposed by utilizing the Discrete Wavelet Transform (DWT) to detect faults by extracting high-frequency current oscillations associated with short-circuit currents. The discrete wavelet energy is calculated from the DWT output, accumulated, and compared to the threshold value. The main advantages of this protection algorithm are that it does not need to depend on the short-circuit current increased values to detect the fault and communication is not required between relays. The proposed protection scheme is verified by using PSCAD / EMTDC simulation program. The results validate the proposed IIDG protection strategy by considering different fault types and locations.

Original languageEnglish
Title of host publicationIEEE Conference on Power Electronics and Renewable Energy, CPERE 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665452335
DOIs
StatePublished - 2023
Event2023 IEEE Conference on Power Electronics and Renewable Energy, CPERE 2023 - Luxor, Egypt
Duration: 19 Feb 2023 → 21 Feb 2023

Publication series

NameIEEE Conference on Power Electronics and Renewable Energy, CPERE 2023

Conference

Conference2023 IEEE Conference on Power Electronics and Renewable Energy, CPERE 2023
Country/TerritoryEgypt
CityLuxor
Period19/02/23 → 21/02/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

  • Discrete Wavelet Transform (DWT)
  • Inver Interfaced Distributed Generator (IIDG)
  • Protection algorithm
  • Short circuit

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Control and Optimization
  • Transportation
  • Renewable Energy, Sustainability and the Environment

Fingerprint

Dive into the research topics of 'Inverter Based Islanded Microgrid Protection Using Discrete Wavelet Transform'. Together they form a unique fingerprint.

Cite this