Short-term Power Quality Disturbance Detection Method Using S-transform

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Resource Overview

This MATLAB-based implementation utilizes S-transform for detecting short-term power quality disturbances, specifically designed to analyze voltage sag characteristics including magnitude, phase variations, duration, and harmonic components.

Detailed Documentation

This program implements a short-term power quality disturbance detection method based on the S-transform algorithm. The core functionality involves applying time-frequency analysis through S-transform to characterize voltage sags by extracting key parameters: magnitude variations, phase shifts, duration metrics, and harmonic distortion levels. The implementation includes automated disturbance classification algorithms that identify various disturbance types such as momentary interruptions, transient fluctuations, and harmonic distortions using pattern recognition techniques. Upon detection, the system triggers automatic alerts and generates detailed disturbance reports containing timestamps, severity indices, and spectral characteristics. This enables operators to implement timely corrective actions, ensuring power system stability through continuous monitoring and analysis.

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