V. A. Bukanin, A. N. Ivanov, V. V. Vologdin, Vl. V. Vologdin
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Network Voltage Harmonics Generated by an Induction Heater Powered by a Transistor Power Supply
Abstract
The problems of electromagnetic compatibility associated with the presence of sinusoidal voltage distortions in a public network when connecting induction heating systems are considered. One of the sources of voltage harmonic emissions is the designed high-frequency induction installation for heating a graphite cylinder based on a VGT 8-50/10 power supply. The problems of low-frequency conducted interference created during the operation of the induction installation for heating the graphite cylinder at high frequencies are considered. Results of experimental studies of the sinusoidal distortion of the voltage curve in the supply network are presented. Measurements are made of the voltage total harmonic distortion factor and the nth harmonic component factor. The voltage and current curves at the input of the VGT-series power supply with a frequency of 10 kHz are obtained when connecting it to an inductor with a power of 12 and 20 kW. Voltage harmonics are measured and compared with the maximum standard parameters. The harmonic numbers at which the permissible voltage values are exceeded are recorded.
期刊介绍：
Russian Electrical Engineering is a journal designed for the electrical engineering industry and publishes the latest research results on the design and utilization of new types of equipment for that industry and on the ways of improving the efficiency of existing equipment.
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