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Application of parity mismatches in detection of bad data for power system state estimation

DSpace at IIT Bombay

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Title Application of parity mismatches in detection of bad data for power system state estimation
 
Creator MANGALVEDEKAR, HA
KHAPARDE, SA
PARAKKUTH, JD
VARWANDKAR, SD
 
Subject data identification
 
Description Measurement residuals have been conventionally used in the detection and identification of gross errors in poser system state estimation. Other types of mismatches have been employed in failure detection of complex plants, though their application to power systems have not yet been reported. Parameters in power systems can be used for the purpose of generating such mismatches called parity mismatches in this paper. Parameters calculated from measurements containing erroneous ones differ from their true values resulting in parity mismatches. In this paper, parity mismatches are employed for identification of gross errors in given measurements. A relation between parity mismatches and measurement residuals has been derived. Similar to the method of residuals, normalisation can be effected on parity mismatches. Physical appeal of the parity mismatches enables one to adopt normalisation which improves the detectability of bad data in short lines. A segregated treatment for real, reactive power floss and also the injections can be applied unlike the method of residuals.
 
Publisher HEMISPHERE PUBL CORP
 
Date 2011-07-31T06:35:34Z
2011-12-26T12:52:52Z
2011-12-27T05:39:49Z
2011-07-31T06:35:34Z
2011-12-26T12:52:52Z
2011-12-27T05:39:49Z
1999
 
Type Article
 
Identifier ELECTRIC MACHINES AND POWER SYSTEMS, 27(1), 1-10
0731-356X
http://dx.doi.org/10.1080/073135699269406
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8014
http://hdl.handle.net/10054/8014
 
Language en