DocumentCode :
1188516
Title :
A Statistical Decision Theoretic Approach to Digital Relaying
Author :
Sakaguchi, Toshiaki
Author_Institution :
Mitsubishi Electric Corporation
Issue :
5
fYear :
1980
Firstpage :
1918
Lastpage :
1926
Abstract :
Digital relaying is logically decomposed into three successive processes-sensing, evaluating, and discriminating ones. The first process transforms the system voltage and current into digital forms. The middle process produces the criterion value through a specific measuring algorithm. Finally, the last process discriminates a faulted condition based on the criterion value. One of the important strengths of the digital systems over the analog ones is the ability of making decisions in the final process, which so far has been neglected in the relaying field. With the probabilistic natures in the fault condition in mind, this paper presents one of the approaches toward this direction through the statistical decision theory, and also presents a determination method of the sampling rates for the digital relays.
Keywords :
Decision theory; Digital relays; Digital systems; Impedance; Microcomputers; Microprocessors; Power engineering and energy; Power system relaying; Sampling methods; Voltage;
fLanguage :
English
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9510
Type :
jour
DOI :
10.1109/TPAS.1980.319775
Filename :
4114015
Link To Document :
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