%O cited By 17; Conference of 2011 IEEE Symposium on Computers and Informatics, ISCI 2011 ; Conference Date: 20 March 2011 Through 22 March 2011; Conference Code:86204 %P 495-500 %C Kuala Lumpur %K Harmonics mitigation; Nonlinear load; reactive power compensation; Three-phase four-leg; Total harmonic distortions, Electric current control; Harmonic analysis; Hysteresis; Information science; Power converters; Reactive power, Active filters %R 10.1109/ISCI.2011.5958965 %J ISCI 2011 - 2011 IEEE Symposium on Computers and Informatics %T Three-phase four-leg shunt active power filter to compensate harmonics and reactive power %A I.I. Abdalla %A K.S.R. Rao %A N. Perumal %L scholars1936 %D 2011 %X This paper presents a compensating system for the harmonics and the reactive power using four-leg shunt active power filter (SAPF) in a three-phase four-wire distribution network and aims to minimize the harmonics and neutral current. Two control approaches p-q theory based hysteresis current control and load current detection based hysteresis current control are proposed. To validate the compensation performance of SAPF a distribution network with nonlinear loads is simulated using MATLAB/Simulink software. Simulation results are presented to assess the performance of SAPF to minimize the total harmonics distortion (THD) and neutral current, as well as to compensate the reactive power. © 2011 IEEE.