Localization of Disconnection Faults in PV Installations Using the Multiple Frequencies Injection Method

Jae-Sub Ko and Dae-Kyong Kim
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Jae-Sub Ko: Smart Energy Institute, Sunchon National University, Suncheon-si 57922, Korea
Dae-Kyong Kim: Department of Electrical Engineering, Sunchon National University, Suncheon-si 57922, Korea

Energies, 2021, vol. 14, issue 21, 1-28

Abstract: This paper proposes a method to detect disconnection faults and their exact location in PV systems. The proposed method injects multiple frequencies into a PV system with a transmitter and detects the injected signal using a receiver. The signal detected by the receiver exhibits different frequency characteristics on a disconnection failure. Based on this characteristic, a disconnection failure can be detected. In addition, by detecting the frequency radiated through the disconnection point, the exact disconnection point can be detected.

Keywords: disconnection failure; failure detecting; PV system; multiple frequency injection (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: 2021
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