Vol. 157, Issue 10, October 2013, pp. 212-216

Abstract: A large amount of electrical power harmonic are injected into the electrical power network because the widely used of nonlinear electrical power load. It brings a great harm to the precision electronic instrument in safety running. This article presented a kind of electrical network harmonic analysis algorithm used for the harmonic signal separation. Through analyzing the harmonic monitor technology at present, using the blind signal separation technology to complete the mixing electrical power system voltage signal separation based on the traditional information maximization blind source separation algorithm and natural gradient algorithm, the simulation result shown that this two algorithm can also realize the instantaneous mixing voltage harmonic signal separation and harmonic analysis monitor. The result expressed that this method can effectively gain a good separation effect with the monitoring spectrum error is less than 1 %.

Keywords: Electrical network, Harmonic analysis, BSS, Monitor precision, Independent component analysis.

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