Multilevel Inverter Based Active Power Filter With Energy Balanced DC Link Capacitor
B Surendra Reddy , Jahnavi
This paper presents the modeling of a multilevel cascaded H-bridge inverter for a three phase shunt active power filter (APF). Multilevel-cascaded inverter can give better performance compared to other topologies. The DC link capacitor is designed based on energy balance principle. A closed loop current control technique is used to reduce harmonics and the voltage regulations are carried out by PI controller. The proposed modeling is verified by using MATLAB-Simulink software
Active power filter; multilevel inverter; DC link capacitor; current controller.
 Singh B.,Haddead K., and Chandra A.,”A Review of active power filter for power quality improvement”, IEEE Trans. Industrial Electronics, Vol.46 no.5,(1999):pp. 960-971.
 Mirinda H.,Cardenas V.,Visairo N.,Espinoza-perez G.,”A dq passivity based approach for shunt active power filter based onNPC three level converter” Industrial Electronics 34th annual conference of IEEE(2008):pp. 3171-3177.
 Three-level inverter based shunt active power filter in Three phase Three wireand four wire systems” IEEE trans. Volume:24(2009): pp. 1350-1363.
 Manjrekar M., Venkataramanan G.:”Advanced topologies and modulation strategies for multilevel inverters”,PESC’96, volume:2(1996),pp:1013-1018.
 Rodriguez J.,Jih-sheng Lai, Fang Jeng Peng; “Multilevel inverter: a survey of topologies, controls and applications”,IEEE trans. Volume: 49(2002), pp:724-738.
 Daher S.,Schmid J.,Antunes M.,” Multilevel inverter topologies for stand alone PV systems”; IEEE trans. Volume:45(2008),pp: 2703- 2712.