Power Quality Enhancement using Shunt Active Filter with ANFIS Controller

Abstract — Power Quality is a physical characteristics of electrical supply provided under normal operating conditions that do not disturb the process. Power quality problems occur if there is any deviation in the Voltage, Current or Frequency that results in a failure of equipment. Higher rated non-linear loads degrade the Quality of the supply. Due to this, component heating, malfunctioning of sensitive electronic loads, overheating of neutral conductors etc., is occurring. Thus the main objective is to improve the power quality by the shunt active power filters that compensate the current and voltage disturbances in power distribution system. The main function of shunt active power filter is to compensate current harmonics occurred on the load side.Thus the power quality improvement using shunt active filter using ANFIS controller is proposed. Software used for this simulation is MATLAB/SIMULINK. Index terms- Active power filter, Power quality improvement, Fuzzy logic controller, linear and non-linear load, reactive power, Hysteresis controller, harmonics. I