Health Monitoring of Electric Circuits

M. Kokot; Jan Holnicki-Szulc

doi:10.4028/www.scientific.net/KEM.293-294.669

Paper Titles

Multidisciplinary Software Developments in a Power Transformers Scenario
p.635

Simplified Modeling for Impedance-Based Health Monitoring
p.643

The Kinematics and Dynamics of a Dextrous Parallel Manipulator for Structural Inspection Applications
p.653

Prediction of Machines Health with Application of an Intelligent Approach – a Mining Machinery Case Study
p.661

Health Monitoring of Electric Circuits
p.669

Damage Detection on Typical Aeronautical Structures
p.677

An Analysis about Response of Small Structure Suffered Underwater Explosion
p.685

Ultrasonic Damage Measurement in Reinforced Concrete Beams
p.695

Instantaneous Identification of Polynomial Nonlinearity Based on Volterra Series Representation
p.703

HomeKey Engineering MaterialsKey Engineering Materials Vols. 293-294Health Monitoring of Electric Circuits

Health Monitoring of Electric Circuits

Abstract:

A methodology of defect identification in linear DC circuits based on so called Virtual Distortion Method (VDM) will be presented. The proposed approach takes adventage of the analogy linking mechanical models of truss structures and electric circuits. In this paper we cover the issue of modelling defects in electric circuits by compatible state of distortions, next we introduce the concept of influence matrix Dij, which describes global sensitivity of the circuit and enables fast recalculation of system response, and we formulate a gradient method of defect identification (inverse problem) based on local current and voltage measurements. In the following analysis we focus on so-called impotent states of distortions, which are the source of ambiguity of solution. We show that these difficulties can be overcome by a proper measuring strategy.