Detection of Fault in a PV Array using Teager Kaiser Energy Operator

When the fault current exceeds its rated value as specified by numerous international standards, the conventional Photovoltaic (PV) array protection devices are helpful in detecting Line-Line (LL) and Line-Ground (LG) faults. However, it is seen that the fault current in a PV string remains below it...

Full description

Saved in:
Bibliographic Details
Main Authors: Basak, Sourav, Chakrabarti, Ushnik, Karmakar, Binoy Kumar
Format: Conference Proceeding
Language:English
Subjects:
Automation
Fault detection
Fault location
Hardware
Hazards
L-G fault
L-L fault
Partial shading
Photovoltaic (PV) array
Photovoltaic systems
Teager Kaiser Energy Operator (TKEO)
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:When the fault current exceeds its rated value as specified by numerous international standards, the conventional Photovoltaic (PV) array protection devices are helpful in detecting Line-Line (LL) and Line-Ground (LG) faults. However, it is seen that the fault current in a PV string remains below its threshold value depending on the irradiance and position of the fault. As a result, a PV array occasionally has problems that go unnoticed. An undetected fault like this manifests in reduction in array power, damages the affected PV module(s) and leads to fire hazards. Available fault detection techniques have limitations in detecting faults in a PV array i) which are connected with blocking diode ii) during partial shading. In this study, we offer a Teager Kaiser Energy Operator (TKEO) based method that is less computationally intensive than previous approaches for fault identification in a PV array. The accuracy of the suggested strategy is practically tested on a number of common case studies.
ISSN:2771-1358
DOI:10.1109/ICCUBEA54992.2022.10010797