Active Power Filter Based on Adaptive Detecting Approach of Harmonic Currents
- 1
- 2
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.
- R. Bojoi, G. Griva, F. Profumo, M. Cesano, and L. Natale, “Shunt active filter implementation for induction heating applications,” Applied Power Electronics Conference and Exposion, Vol. 3, pp. 1674–1679, March 2005.
- D. Liu, B. D. Zhang, and X. L. Zhang, “Design of adaptive increment controlled hybrid-type active power filter,” Power and Energy Engineering Conference, Asia-Pacific, Vol. 27–31, No. 3, pp. 1–4. 2009.
- H. Akagi, E. H. Watanabe, and M. Aredes, “Instantaneous power theory and applications to power conditioning,” Wiley-Interscience a John Wiley & Sons, Inc., Publication, 2007.
- H. Akagi, “Generalized theory of instantaneous reactive power and its application,” Elec.Eng. in Japanese, April 1983.
- L. H. Tey and Y. C. Chu, “Improvement of power quality using adaptive shunt active filter,” IEEE Transactions on Power Delivery, Vol. 20, pp. 1558–1568, April 2005.
- B. Widrow and S. P. Sterns, “Adaptive signal processing,” Englewood Cliffs, Prentice-Hall, NJ, inc., 1985.
- J. H. Husy and M. S. E. Abadi, “Unified approach to adaptive filters and their performance,” IET Signal Process, Vol. 2, No. 2, pp. 97–109, 2008.
- A. Nakajima, “Development of active filter with series resonant circuit,” IEEE-PESC, Annual Meeting, pp. 1168–1173, 1988.
- Q. Wang, N. Wu, and Z. A. Wang, “A neuron adaptive detecting approach of harmonic current for apf and its realization of analog circuit,” IEEE Transactions on instrumentation and measurement,” Vol. 50, pp. 77–84, February 2001.
- H. P. To, F. Rahman, and C. Grantham, “An adaptive algorithm for controlling reactive power compensation in active power filters,” Industry Applications Conference, 39th IAS Annual Meeting, Vol. 1, pp. 3– 7, October 2004.
- L. P. Ling and A. Azli, “SVM based hysteresis current controller for a three phase active power filter,” Power and Energy Conference, pp. 132–136, November 2004.