A New Method of Harmonic Current Detection and Control Strategy of Compensating Current

Xiang Cheng; Tie Lin Zheng; Gui Hong Feng

doi:10.4028/www.scientific.net/AMR.588-589.986

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 588-589A New Method of Harmonic Current Detection and...

A New Method of Harmonic Current Detection and Control Strategy of Compensating Current

Abstract:

This paper puts forward and realizes a detection method, which can extract harmonic and reactive current accurately when the network exists nonideal and asymmetric power grid voltages. From the view of vector analysis, through the d-q coordinates[1,2] project transformation of the three-phase voltage and current vectors, the harmonic and reactive current extraction is realized. The compensation current adopts forecast current control, obtaining a better compensation characteristic and control accuracy .From the experimental results of 5 kVA active power filter（APF）and 150 kVA mixing filters, the feasibility and the correctness of the proposed method are proved.

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Periodical:

Advanced Materials Research (Volumes 588-589)

Pages:

986-989

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.588-589.986

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Online since:

November 2012

Authors:

Xiang Cheng, Tie Lin Zheng, Gui Hong Feng

Keywords:

APF, D-Q Transformation, Extract Current, Harmonic Current Detection

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References

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