Faulty Feeder Identification Technology utilizing Grid-Connected Converters for Reduced Outage Zone in Smart Grids
Abstract:
For penetration of more renewable and EVs in future smart grids, reliable infrastructure using grid-connected converters (GCCs) are needed. One of the main concerns for grid reliability is outage management during unpredictable faults. By using intelligent monitoring and multi-functional control by GCCs, utilities can perform timely faulty feeder detection and isolation to reduce outage zones. Utilities relatively deal with short-circuit faults but suffer from detection failure during high-impedance faults (HIFs) which largely occur due to vegetation or tree contact. Locations of 70-80% of such HIFs remain unknown due to high fault resistances and low levels of fault current. Similar detection failures are reported in neutral ineffectively grounded distribution grids. In this research, advanced GCCs are utilized for safer, faster, reliable faulty feeder identification with no additional cost. Novel technique using GCCs as power source to inject multiple frequency components and employing computationally intensive algorithms is proposed. Developed algorithm is verified by simulation analysis in MATLAB and found to perform 33% faster detection for HIF conditions.
Published in: 2022 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT)
Date of Conference: 24-28 April 2022
Date Added to IEEE Xplore: 12 July 2022
ISBN Information:
Electronic ISBN:978-1-6654-3775-2
Print on Demand(PoD) ISBN:978-1-6654-3776-9
ISSN Information:
- Electronic ISSN: 2472-8152
- Print on Demand(PoD) ISSN: 2167-9665
DOI: 10.1109/ISGT50606.2022.9817553
Publisher: IEEE
Conference Location: New Orleans, LA, USA