Generation of Several Typical Power Quality Disturbance Signal Sources and Their S-Transform Analysis
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The article discusses several typical power quality disturbance signal sources and their corresponding S-Transform analysis. Specifically, these signal sources may include voltage sag, voltage swell, voltage harmonics, and current harmonics. By performing S-Transform, these signals can be effectively analyzed and processed to evaluate power quality stability and reliability. The S-Transform implementation typically involves time-frequency analysis algorithms that combine aspects of Fourier analysis and wavelet transforms, providing simultaneous time and frequency resolution. Code implementation would include signal generation functions for creating disturbance waveforms, followed by S-Transform computation using windowed Fourier transforms with frequency-dependent resolution. Key functions would involve harmonic component identification, disturbance duration calculation, and magnitude quantification through time-frequency matrix analysis.
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