In the process of controlling harmonic distortion in electrical systems, active harmonic mitigation is one of the ever-increasingly important areas of the electrical energy distortion problem. Equipment operation with harmonics may cause heating, additional losses and reduce efficiency of equipment. The problem of low power factor can be resolved by active harmonic mitigation technologies which will help to enhance steady and better quality power supply. This improves the efficiency of electrical systems as well as results in cost reduction and better compliance with regulations, thus making it a good investment for an entity.