Back to Search
Start Over
Fault isolation in distributed generation connected distribution networks
- Source :
- IET Generation, Transmission and Distribution
- Publication Year :
- 2011
- Publisher :
- The Institution of Engineering and Technology, 2011.
-
Abstract
- Protection of a distribution network in the presence of distributed generators (DGs) using overcurrent relays is a challenging task because of the changes in fault current levels and reverse power flow. Specifically, in the presence of current limited converter interfaced DGs, overcurrent relays may fail to isolate the faulted section either in grid connected or islanded mode of operation. In this study, a new inverse-type relay is presented to protect a distribution network, which may have several DG connections. The new relay characteristic is designed based on the measured admittance of the protected line. The relay is capable of detecting faults under changing fault current levels. The relay performance is evaluated using PSCAD simulation and laboratory experiments.
- Subjects :
- Engineering
Admittance
Current Limiters
Distributed Power Generation
Energy Engineering and Power Technology
Data_CODINGANDINFORMATIONTHEORY
Power Distribution Protection
Fault detection and isolation
law.invention
Load Flow
Relay
law
Fault Isolation
Electronic engineering
Electrical and Electronic Engineering
090699 Electrical and Electronic Engineering not elsewhere classified
business.industry
Fault Currents
Protective relay
Electrical engineering
Fault Detection
Line (electrical engineering)
Overcurrent Protection
Overcurrent
Control and Systems Engineering
Distributed generation
Digital protective relay
business
Subjects
Details
- ISSN :
- 23813652
- Database :
- OpenAIRE
- Journal :
- IndraStra Global
- Accession number :
- edsair.doi.dedup.....c67c4240e93336adb94290d1240bcb71