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| 高調波歪解析× | スマートグリッドの状態推定× | |
|---|---|---|
| 分野 | 電気工学 | 電気工学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1822 | 1970s |
| 提唱者≠ | Jean-Baptiste Joseph Fourier | Power systems engineering community |
| 種類 | Computational pipeline | Computational pipeline |
| 原典≠ | IEEE Std 519-1992: IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems. link ↗ | Abur, A., & Exposito, A. G. (2004). Power System State Estimation: Theory and Implementation. Marcel Dekker. DOI ↗ |
| 別名 | harmonic content analysis, THD analysis, Fourier harmonic decomposition | state estimation, network state estimation, grid state assessment |
| 関連 | 4 | 4 |
| 概要≠ | Harmonic distortion analysis quantifies the deviation of voltage or current waveforms from sinusoidal shape due to nonlinear loads. Using Fourier decomposition, engineers separate the waveform into its fundamental frequency and harmonic components (integer multiples of 50 or 60 Hz). Harmonic analysis is critical for assessing power quality and designing filters in modern power systems with high penetration of nonlinear devices. | Power system state estimation infers the real-time voltage and phase angle at every bus in a power network from redundant measurements of power flows and voltages. It is the foundation of modern grid operations, enabling real-time monitoring, contingency analysis, and optimal control. Advanced state estimation with synchronized phasor measurements (synchrophasors) enables faster control and detection of instabilities. |
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