Implementation and Design of FREEDM System Differential Protection Method Based on Internet of Things

Ahmed Y. Hatata, Mohamed A. Essa and Bishoy E. Sedhom ()
Additional contact information
Ahmed Y. Hatata: Department of Electrical Engineering, College of Engineering, Shaqra University, Al-Dawadmi, Riyadh 11911, Saudi Arabia
Mohamed A. Essa: Department of Mechanical Engineering, College of Engineering, Shaqra University, Al-Dawadmi, Riyadh 11911, Saudi Arabia
Bishoy E. Sedhom: Electrical Engineering Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt

Energies, 2022, vol. 15, issue 15, 1-24

Abstract: This paper introduces an enhancement of the protection and operation of the Future Renewable Electric Energy Delivery and Management (FREEDM) system. It uses the solid-state transformers to connect the residential A.C. and D.C. microgrids to the distribution system and fault isolation devices for faulty line isolation. In this paper, a current differential protection scheme has been proposed to detect faults in the FREEDM-based microgrid network. This method is based on the current measurement at the two-line terminals using phasor measurement units to ensure data synchronization and minimize the measuring error. Also, a communication scheme that is based on the Internet of things technology and Wi-Fi is constructed for data monitoring and interlinking between the relays, transducers, and the fault isolation devices in the two-terminals lines. A hypothetical FREEDM system has been used for the verification and testing of the proposed method. Different fault types at different locations and fault resistances have been applied to prove the effectiveness of the proposed protection method in detecting the fault condition. The performance of the proposed method is investigated using the security, dependability, and accuracy indices. A prototype of the FREEDM system is designed, implemented, and tested using the Proteus software simulator and in the laboratory. The results prove the efficiency of the proposed protection method in detecting and isolating the fault conditions in a fast, reliable, and accurate manner. Moreover, the protection scheme achieved high accuracy for all faults, equal to 98.825%.

Keywords: differential protection scheme; microgrid; fault detection; FREEDM system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/15/5754/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/15/5754/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:15:p:5754-:d:883244

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().