Active Power Filter Based on Adaptive Detecting Approach of Harmonic Currents

Yu ZHANG, Yupeng TANG

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DOI: 10.4236/jemaa.2009.14036                

Abstract

The ip-iq detection method based on instantaneous inactive power theory has been applied widely in active power filter because of its good real-time. But it needs large computation, and three-phase currents are processed as integrity, thus calculation accuracy can't be ensured. Based on adaptive interference canceling theory, this paper presents a new ad- aptive detection method for harmonic current, it is a continuously regulated closed-loop system, and its operating characteristics are almost independent of the parameter variations of the elements, thus it performs better than that based on traditional theory. At last this paper provides the simulation of active power filter including the detecting cir-cuit which proved the design is feasible and correct.

Keywords

Adaptive Interference Canceling, Adaptive Harmonic Detecting, Active Power Filter

Conflicts of Interest

The authors declare no conflicts of interest.

References

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