A review on harmonic mitigation method for non-linear load in electrical power system

Recently, the extensive usage of electronic devices in the electrical system increases the magnitude of non-linear loads, significantly. These devices are essential at residential, factories, commercial, and office premises. Modern equipment which produced non-linear load are computers, heat pump, air conditioning system, light dimmer, and others. These appliances inject pulses into the system’s current waveform and generate harmonics throughout the electrical system. This phenomenon will increase the heating of utility and other appliances which resulting in system resonance and failure of the device. A lot of harmonic mitigation methods are now available to minimize the effect. The methods categorized into the passive, active, and hybrid harmonic filter. The efficiency of each method depends mainly on applications and conditions of the system, while others need extensive systems analysis. This review paper describes the different harmonic mitigation approaches with their standard circuit connection dealing with the electrical power system.