This guide explains effective harmonics mitigation techniques —including equipment selection, tuned and de-tuned filters, and active filters—to reduce distortion, improve reliability, and ensure compliance with power quality standards. Harmonics can damage equipment, leading to inefficiency and even failure. To reduce risk and optimize operating costs, it's worth mitigating power distortion. Learn how to mitigate harmonics. The following are harmonic solutions that are commercially available products or combinations of products for reducing harmonic currents and minimising harmonic voltage distortion on a power system. These harmonic solutions are divided into three major categories: Choosing the right VFD for. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited., photovoltaic (PV) and wind turbine) that are integrated into the distribution systems, are considered as significant harmonic sources of severe harmful effects on the system power quality. To solve these issues, this paper. Keywords: Total Harmonic Distortion, Uninterruptible Power Supply, Adjustable Speed Drive, Displacement Power Factor, Actual Power Factor, Phase Shift Transformer, Harmonic Filter.