Power Quality Improvement Using PI and Fuzzy Logic Controllers Based Shunt Active Filter
In recent years the large scale use of the power electronic equipment has led to an increase of harmonics in the power system. The harmonics results into a poor power quality and have great adverse economical impact on the utilities and customers. Current harmonics are one of the most common power quality problems and are usually resolved by using shunt active filter (SHAF). The main objective of this work is to develop PI and Fuzzy logic controllers (FLC) to analyze the performance of Shunt Active Filter for mitigating current harmonics under balanced and unbalanced sinusoidal source voltage conditions for normal load and increased load. When the supply voltages are ideal (balanced), both PI and FLC are converging to the same compensation characteristics. However, the supply voltages are non-ideal (unbalanced), FLC offers outstanding results. Simulation results validate the superiority of FLC with triangular membership function over the PI controller.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1091934Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF
 Akagi H. New trends in active filters for power conditioning. IEEE Trans IndAppl 1996; 32(6):1312–22.
 H. Rudnick, Juan Dixon and Luis Moran, "Active power filters as a solution to power quality problems in distribution networks, ”IEEE power & energy magazine, pp. 32-40, Sept./Oct. 2003.
 A. Mansoor, W.M. Gardy, P. T. Staats, R. S. Thallam, M. T. Doyle, and M. J. Samotyj, "Predicting the net harmonic current producedby large numbers of distributed single phase computer loads.” IEEE Trans. Power Delivery, Vol.10, pp. 2001-2006, 1994.
 Parmod Kumar, and Alka Mahajan, "Soft Computing Technics for the control of an Active Power Filter,” IEEE Transaction on Power Delivery, Vol. 24, No. 1, Jan . 2009.
 Suresh Mikkili, and A. K. Panda, "Performance analysis and real-time implementation of shunt active filter current control strategy with type-1 and type-2 FLC triangular M.F,” International Transactions on Electrical Energy Systems – John Wiley, Vol. 24, Issue 3, pp. 347–362, March 2014.
 S Bhattacharya and D. M. Divan, "Hybrid series active/parallel passive power line conditioner with controlled harmonic injection,” U. S. patent 5 465 203, Nov. 1995.
 Bhim Singh, K. Al-Haddad, and A. Chandra, "A Review of Active Filters for Power Quality Improvement,” IEEE Trans. On Industrial Electronics, Vol.46, No.5, Oct 1999.
 Gyugyi L, Strycula E C. Active power filters. In:Proceedings of IEEE/IAS Annual Meeting. 1976, 529-535.
 ChaouiAbdelmadjid, KrimFateh, Gaubert Jean-Paul, Rambault Laurent. DPC controlled three-phase active filter for power quality improvement. Electrical Int J Electr Power Energy System 2008:30:476-85
 SureshMikkili, Panda AK. Real-time implementation of PI and fuzzy logic controllers based shunt active filter control strategies for power quality improvement. Int J Electr Power Energy Syst 2012:43(1):1114-26.
 SureshMikkili, Panda AK. PI and fuzzy logic controller based 3-phase 4-wire Shunt active filter for mitigation of Current harmonics with Id-Iq control strategy. J Power Electron (JPE) 2011:11(6):914-21.
 Akagi H, Watanabe E H, Aredes M. Instanteneous Power Theory and Applications to power Conditioning. New Jersey: IEEE Press/Wiley Interscience, 2007
 L.A. Zadeh, "Fuzzy sets, Information and control” Vol. 8,pp. 338-353, 1965.