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On-line detection of loss of synchronism using locally measurable quantities
By: Padiyar, K.R.; Krishna, S.;
2001 / IEEE / 0-7803-7285-9
This item was taken from the IEEE Conference ' On-line detection of loss of synchronism using locally measurable quantities ' Maintaining dynamic security of a power system subjected to large disturbances is of utmost importance. Fast and accurate on-line detection of instability is essential in initiating certain emergency control measures. The techniques reported in the literature involve mainly application of global phasor measurements and heuristic algorithms. In this paper, an accurate technique for the on-line detection of loss of synchronism based on voltage and current measurements in a line is presented. The technique makes use of the concept of potential energy in a line. The conditions for the system instability are derived from energy function analysis. However no assumptions are made regarding the power-angle relationship in a line, nor any data on the system equivalents are necessary in implementing the detection scheme which is simple and requires only local measurements.
Power System Dynamic Security
Power System Detection Instability
Emergency Control Measures
Line Potential Energy
Energy Function Analysis
Power System Protection
Power System Security
Power System Stability
Loss Of Synchronism On-line Detection
Electric Current Measurement
Power System Measurement