Single-End Frequency Domain Method for Fault Location

The single-end frequency domain method represents a widely adopted technique for fault distance measurement in power systems. This approach employs zero-sequence current phase correction to achieve precise fault localization. The implementation typically involves signal processing algorithms that analyze frequency domain characteristics of fault signals, where key functions include Fast Fourier Transform (FFT) for spectral analysis and phase angle calculation routines. Through this methodology, the program accurately identifies fault positions within power networks, providing vital assistance to system operators and maintenance teams. The algorithm's core functionality includes impedance calculation based on phase-corrected zero-sequence components and distance estimation using line parameters. This approach significantly reduces fault定位 timeframes, enabling quicker response to system issues and thereby enhancing overall power system reliability and operational stability. The code implementation generally incorporates signal filtering, frequency component extraction, and adaptive threshold detection for improved accuracy in diverse system conditions.