Method of and system for determining locations of sources of har

Details Method of and system for determining locations of sources of har Method of and system for determining locations of sources of har

1985-10-17

1987-05-19

Levy, Stewart J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

324 52, 324 83D, G01R 2106

Patent

active

046671528

ABSTRACT:
Current and voltage waveforms on the branches of each node of a power distribution network are sampled. The samples are converted to digital signals which are resolved into spectral components and processed to obtain the power (KVA) phasor at each frequency (harmonic component) of interest. The phase angles of the phasors describe the directions of movement, and thereby the locations of the sources, of the power harmonics in the network. A summary report is generated.

REFERENCES:
patent: 4063164 (1977-12-01), Lanz et al.
patent: 4249124 (1981-02-01), DeMesmaeker
patent: 4251766 (1981-02-01), Souillard
patent: 4316254 (1982-02-01), Levin et al.
patent: 4492918 (1985-01-01), Hernandez et al.
patent: 4560922 (1985-12-01), Heller et al.

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