# Real-Time Implementation of Shunt Active Filter P-Q Control Strategy for Mitigation of Harmonics with Different Fuzzy M.F.s

Mikkili, Suresh;Panda, Anup Kumar

• Published : 2012.09.20
• 21 4

#### Abstract

This research article presents a novel approach based on an instantaneous active and reactive power component (p-q) theory for generating reference currents for shunt active filter (SHAF). Three-phase reference current waveforms generated by proposed scheme are tracked by the three-phase voltage source converter in a hysteresis band control scheme. The performance of the SHAF using the p-q control strategy has been evaluated under various source conditions. The performance of the proposed control strategy has been evaluated in terms of harmonic mitigation and DC link voltage regulation. In order to maintain DC link voltage constant and to generate the compensating reference currents, we have developed Fuzzy logic controller with different (Trapezoidal, Triangular and Gaussian) fuzzy M.F.s. The proposed SHAF with different fuzzy M.F.s is able to eliminate the uncertainty in the system and SHAF gains outstanding compensation abilities. The detailed simulation results using MATLAB/SIMULINK software are presented to support the feasibility of proposed control strategy. To validate the proposed approach, the system is also implemented on a real time digital simulator and adequate results are reported for its verifications.

#### Keywords

Different fuzzy M.F.s (Trapezoidal, Triangular and Gaussian M.F's);Fuzzy logic Controller;Harmonic compensation;P-Q control strategy;Shunt active filter

#### References

1. B. Singh, P. Jayaprakash, and D. P. Kothari "a three-phase four-wire dstatcom for power quality improvement," Journal of Power Electronics, Vol. 8, No. 3, pp. 259-267, Jul. 2008.
2. Peng Z. Peng, G. W. Ott JR., and D. J. Adams, "Harmonic and reactive power compensation based on the generalized instantaneous reactive power theory for three-phase four-wire systems," IEEE Trans. Power Electron., Vol. 13, No. 6, pp. 1174-1181, Nov. 1998. https://doi.org/10.1109/63.728344
3. S. K. Jain, P. Agrawal, and H. O. Gupta, "PI and Fuzzy logic controlled shunt active power filter for power quality improvement," IEEE Proceedings Electric Power Applications, Vol. 149, No. 5, 2002.
4. Suresh Mikkili and A. K. Panda, "PI and fuzzy logic controller based 3-phase 4-wire shunt active filter for mitigation of current harmonics with $i_{d}-i_{d}$ control strategy," Journal of power Electronics, Vol. 11, No. 6, pp. 914-921, Nov. 2011. https://doi.org/10.6113/JPE.2011.11.6.914
5. Montero M. I. M et al. "Comparison of control strategies for shunt active power filters in three-phase four-wire systems," IEEE Trans. Power Electron., Vol. 22, No. 1, pp. 229-236, Jan. 2007. https://doi.org/10.1109/TPEL.2006.886616
6. L. Gyugyi and E. C. Strycula, "Active AC power filters," IEEE IIAS Annual Meeting, p. 529, 1976.
7. H. Akagi, Y. Kanazawa, and A. Nabae, "Instantaneous reactive power compensators comprising switching devices without energy storage components," IEEE Trans Industry Appl., Vol. Ia-20, No. 3, pp 625-630, May/Jun. 1984. https://doi.org/10.1109/TIA.1984.4504460
8. H. Akagi, E. H. Watanabe, and M. Aredes, Instantaneous Power Theory and Applications to Power Conditioning, IEEE Press/Wiley-Inter-science, 2007.
9. Aredes M. et al. "Three-phase four-wire shunt active filter control strategies," IEEE Trans. Power Electron., Vol. 12, No. 2, pp. 311-318, Mar. 1997. https://doi.org/10.1109/63.558748
10. J. Holtz, "Pulse width modulation - A survey," IEEE Trans. Industrial Electron., Vol. 39, No. 5, pp. 410-420, Oct. 1992. https://doi.org/10.1109/41.161472
11. P. Rodriguez, J. I. Candela, A. Luna, and L. Asiminoaei, "Current harmonics cancellation in three-phase four-wire systems by using a four-branch star filtering topology," IEEE Trans. Power Electron., Vol. 24, No. 8, pp. 1939-1950, Aug. 2009. https://doi.org/10.1109/TPEL.2009.2017810
12. F. Mekri, B. Mazari, and M. Machmoum, "Control and optimization of shunt active power filter parameters by fuzzy logic," IEEE Electrical and computer Engineering, Vol. 31, No. 3, pp. 127-134, Jan. 2006.
13. S. Mikkili, A. K. Panda, "Real-time implementation of PI and fuzzy logic controllers based shunt active filter control strategies for power quality improvement," International Journal of Electrical Power and Energy Systems, Vol. 43, No. 1, pp. 1114-1126, 2012. https://doi.org/10.1016/j.ijepes.2012.06.045

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