i_d-i_q Control Strategy for Mitigation of Current Harmonics with Fuzzy Logic Controller Using Matlab/Simulation and RTDS Hardware

Suresh Mikkili, Anup Kumar Panda

.

DOI: 10.4236/ica.2011.24042                

Abstract

The main objective of this paper is to develop Fuzzy controller to analyse the performance of instantaneous real active and reactive current (i_d-i_q) control strategy for extracting reference currents of shunt active filters under balanced, un-balanced and balanced non-sinusoidal conditions. When the supply voltages are balanced and sinusoidal, the all control strategies are converge to the same compensation characteristics; However, the supply voltages are distorted and/or un-balanced sinusoidal, these control strategies result in different degrees of compensation in harmonics. The p-q control strategy unable to yield an adequate solution when source voltages are not ideal. Extensive simulations are carried out with Fuzzy controller for i_d-i_q control strategy under different main voltages. The 3-ph 4-wire shunt active filter (SHAF) system is also implemented on a Real Time Digital Simulator (RTDS Hardware) to further verify its effectiveness. The detailed simulation and RTDS Hardware results are included.

Keywords

Harmonic Compensation, SHAF, i_d-i_q Control Strategy, Fuzzy Controller and RTDS Hardware

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	H. Akagi, Y. Kanazawa and A. Nabae, “instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components,” IEEE Transactions on Industry Applications, Vol. IA-20, No. 3, 1984, pp. 625-630.
[2]	L. Gyugyi and E. C. Strycula, “Active AC Power Filters,” IEEE IIAS Annual Meeting, Cincinnati, 1976, pp. 529-535.
[3]	M. Suresh, A. K. Panda and Y. Suresh, “Fuzzy Controller Based 3Phase 4Wire Shunt Active Filter for Mitigation of current Harmonics with Combined p-q and id-iq Control Strategies,” Journal of Energy and Power Engineering, Vol. 3, No. 1, 2011, pp. 43-52. doi:10.4236/epe.2011.31007
[4]	H. Akagi, “New Trends in Active Filters for Power Conditioning,” IEEE Transactions on Industry Applications, Vol. 32, No. 6, 1996, pp. 1312-1322.
[5]	S. Mikkili, A. K. Panda and S. Yellasiri, “RTDS Hardware Implementation and Simulation of 3-ph 4-Wire SHAF for Mitigation of Current Harmonics Using p-q Control Strategy with Fuzzy Controller,” Journal of Power Electronics & Power Systems, Vol. 1, No. 1, 2011, pp. 13-23.
[6]	F. 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 Transactions on Power Electronics, Vol. 13, No. 5, 1998, pp. 1174-1181. doi:10.1109/63.728344
[7]	V. Soares, P. Verdelho and G. Marques, “Active Power Filter Control Circuit Based on the Instantaneous Active and Reactive Current id-iq Method,” IEEE Power Electronics Specialists Conference, St. Louis, 22-27 June 1997, pp. 1096-1101.
[8]	M. I. M. Montero, E. R. Cadaval and F. B. Gonzalez, “Comparison of Control Strategies for Shunt Active Power Filters in Three-Phase Four Wire Systems,” IEEE Transactions on Power Electronics, Vol. 22, No. 1, 2007, pp. 229-236. doi:10.1109/TPEL.2006.886616
[9]	M. Aredes, J. Hafner and K. Heumann, “Three-Phase 4-Wire Shunt Active Filter Control Strategies,” IEEE Transactions on Power Electronics, Vol. 12, No. 2, 1997, pp. 311-318. doi:10.1109/63.558748
[10]	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 Transactions on Power Electronics, Vol. 24, No. 8, 200, pp. 1939-19509. doi:10.1109/TPEL.2009.2017810
[11]	P. Salmeron and R. S. Herrera, “Distorted and Unbalanced Systems Compensation within Instantaneous Reactive Power Framework,” IEEE Transactions on Power Delivery, Vol. 21, No. 3, 2006, pp. 1655-1662. doi:10.1109/TPWRD.2006.874115
[12]	S. Mikkili and A. K. Panda, “APF for Mitigation of Current Harmonics with p-q and id-iq Control Strategies Using PI Controller,” Journal of Trends in Electrical Engineering, Vol. 1, No. 1, 2011, pp. 1-11.
[13]	S. K. Jain, et al., “Fuzzy Logic Controlled Shunt Active Power Filter for Power Quality Improvement,” IEEE Proceedings of Electric Power Applications, Vol. 149, No. 5, 2002, pp. 317-328.
[14]	S. Mikkili and A. K. Panda, “Simulation and RTDS Hardware Implementation of SHAF for Mitigation of Current Harmonics with p-q and id-iq Control Strategies Using PI Controller,” Engineering, Technology & Applied Science Research, Vol. 1, No. 3, 2011, pp. 54-62.
[15]	P. Forsyth, et al., “Real Time Digital Simulation for Control and Protection System Testing,” IEEE 35th Annual Power Electronics Specialists Conference, Aachen, 20-25 June 2004, pp. 329-335.