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| Felsanalys i kraftsystem× | Analys av övertonsförvrängning× | |
|---|---|---|
| Ämnesområde | Elektroteknik | Elektroteknik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1918 | 1822 |
| Upphovsperson≠ | Charles Fortescue | Jean-Baptiste Joseph Fourier |
| Typ | Computational pipeline | Computational pipeline |
| Ursprungskälla≠ | Fortescue, C. L. (1918). Method of symmetrical coordinates applied to the solution of polyphase networks. Transactions of the AIEE, 37(2), 1027-1044. link ↗ | IEEE Std 519-1992: IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems. link ↗ |
| Alias | short-circuit analysis, fault current calculation, symmetrical components method | harmonic content analysis, THD analysis, Fourier harmonic decomposition |
| Närliggande | 4 | 4 |
| Sammanfattning≠ | Fault analysis determines the magnitude and distribution of currents and voltages during abnormal conditions in power systems, such as short circuits. Using Fortescue's symmetrical components method (1918), engineers calculate fault currents to design protection relays and equipment ratings. It is essential for ensuring safe and reliable power system operation. | 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. |
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