Microprocessor implementation of fast Walsh-Hadamard transform for calculation of symmetrical components

A microprocessor-based algorithm for the calculation of symmetrical components of a three-phase system is presented. The symmetrical component transformation is applied to the input waveform, and the harmonic content in the sequence components thus obtained is filtered out by using the fast Walsh-Ha...

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Veröffentlicht in:	Proceedings of the IEEE 1988-10, Vol.76 (10), p.1385-1388
Hauptverfasser:	Sharma, P., Ahson, S.I., Henry, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adaptive filters Applied sciences Circuit faults Convergence Digital filters Electrical engineering. Electrical power engineering Electrical power engineering Exact sciences and technology Frequency Microprocessors Power harmonic filters Power networks and lines Power system harmonics Sampling methods Signal processing algorithms Theory. Simulation
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Beschreibung
Zusammenfassung:	A microprocessor-based algorithm for the calculation of symmetrical components of a three-phase system is presented. The symmetrical component transformation is applied to the input waveform, and the harmonic content in the sequence components thus obtained is filtered out by using the fast Walsh-Hadamard transform. The algorithm is fast and accurate and the three sequence components can be calculated in 3/4th of a cycle after fault occurrence.< >
ISSN:	0018-9219 1558-2256
DOI:	10.1109/5.16340