Load Modeling and Harmonic Analysis of Intermediate Frequency Furnace Based on Measured Waveform

Due to the continuous advancement of power electronic technology, the intermediate frequency furnace generated harmonics has a great impact on the power quality of the power grid. This paper analyzes the working principle of the intermediate frequency furnace with different pulse rectifiers, analyzes the mechanism of harmonic generation in the intermediate frequency furnace, establishes a load model and verifies the rationality of the established model by comparing the measured waveforms.