Protective device estimation is a challenging task because there are numerous
protective devices present in a typical distribution system. Among various protective
devices, auto-reclosers and fuses are the main overcurrent protection on distribution
systems. Operation of a protective device in response to a particular fault condition
depends upon the protective device’s operating behavior and coordination of various
such protective devices.
This thesis presents the design and implementation of a protective device
estimation algorithm which helps in identifying which protective devices have operated
to clear a short circuit condition. The algorithm uses manufacturer’s device details,
power quality data measured from substation monitoring devices and power system
event features estimated using existing DFA algorithms. The proposed technique can be
used to evaluate coordination of these protective devices and helps in locating a fault in a
distribution system feeder. This approach is independent of feeder topology and could be
readily used for any distribution system. The effectiveness of this algorithm is verified
by simulated and actual test data. Suggestions are included for future research and
application by electric utilities.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/ETD-TAMU-2324 |
| Date | 15 May 2009 |
| Creators | Rengarajan, Janarthanan |
| Contributors | Reddy, Narasimha, Russell, Don B |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | electronic, application/pdf, born digital |
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