Abstract : With the increasing application of frequency converters (FDs), the electromagnetic interference and pollution problems caused by their high-order harmonics are becoming more and more prominent. Practical experience shows that shielding, isolation, and grounding are relatively effective techniques for controlling harmonics and suppressing radiated interference and power supply system interference. As industrial production technology gradually improves and the application of frequency converters expands, using frequency converters to drive motors enables soft starting and stepless speed regulation, networked control, high motor performance, and significant energy savings. Therefore, frequency converters are increasingly widely used in industrial production and daily life. For more details, please click to download: Harmonic Interference and Suppression Methods of Frequency Converters.pdf