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A method for fault diagnosis in linear electronic circuits

✍ Scribed by Tadeusiewicz, M.; Korzybski, M.

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
177 KB
Volume
28
Category
Article
ISSN
0098-9886

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✦ Synopsis

A method for fault location and parameter identi"cation in linear AC and DC circuits with limited accessible terminals for excitation and measurement is developed in this paper. Fault location is based on a derived relationship having a general meaning. It requires analyses of the circuit with nominal parameters and distinct excitations as well as measurements of some node voltages in the circuit with perturbed parameters. The fault parameter is identi"ed using a formula obtained on the basis of the Woodbury expression. A decomposition technique is suggested enabling us to apply the method for multiple fault diagnosis. Several numerical examples illustrate the proposed approach and show its e!ectiveness.

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