A Fuzzy based PV-APF Controller for Mitigation of Current Harmonics
Keywords:Current Harmonics, THD, Solar System, Power Quality and MPPT
This paper proposes a concept of Fuzzy based Active Power Filter for mitigating current harmonics in interconnected PV-Grid system. The PV array is connected to the utility grid by using a boost converter and a voltage source converter. For this, a three phase three wire system operated by non-linear load is considered. The increased harmonic content leads to increase in losses, decrease in power factor and many adverse effects. A Fuzzy based instantaneous PQ theory control technique is proposed in this paper for better harmonic compensation. This proposed system is tested and verified using Matlab/Simulink. The results obtained in both PI and fuzzy based APF systems are compared in the aspects of THD and active power.
 Tuyen, Nguyen Duc, and Goro Fujita. "PV Active Power Filter Combination Supplies Power to Nonlinear Load and Compensates Utility Current", IEEE Power and Energy Technology Systems Journal, 2015.
 Villalva MG, Gazoli JR, Filho ER. Comprehensive approach to modeling and simulation of photovoltaic arrays. IEEE Trans Power Electron. 2009; 24(5):1198â€“208.
 Kuo YC, Liang TJ, Chen JF. Novel maximum-power-point tracking controller for photovoltaic energy conversion sysÂtem. IEEE Trans Ind Electron. 2001; 48(3):594â€“601.
 Houssamo I, Locment F, Sechilariu M. Experimental analÂysis of impact of MPPT methods on energy efficiency for photovoltaic power systems. Int J Elect Power Energy Syst. 2013; 46:98â€“107.
 Tuyen ND, Fujita G. PV-active power filter combination supplies power to nonlinear load and compensates utilÂity current. IEEE Power and
 Rezvani F, Mozafari B, Faghihi F. Power quality analysis for photovoltaic system considering unbalanced voltage. Indian Journal of Science and Technology. 2015 Jul; 8(14):1â€“7.
 Kanth KM, Kishore RD. Implementation of MPPT techÂniques for a high step-up converter with voltage multiplier module based photovoltaic system. Indian Journal of Science and Technology. 2015 Sep; 8(23):1â€“6.
 Das JC. Passive filters-potentialities and limitations. IEEE Trans Ind Appli. 2004; 40(1):232â€“41.
 Akagi H. Active harmonic filters. Proc IEEE. 2005; 93(12):2128â€“41.
 Akagi H, Kanagawa Y, Nabae A. Generalized theory of the instantaneous reactive power in three-phase circuits. Proc Int Conf Power Electron; Tokyo, Japan. 1983. p. 1375â€“86.
 Afonso J, Martins CJ. Active filters with control based on the p-q Theory. IEEE Industrial Electronics Society Newsletter; 2000 Sep. p. 5â€“10.