Abstract
The problem of conducted electromagnetic interference generated by high-power transformer cabinets is analyzed. Firstly, the equivalent model of the high-frequency circuit of conduction noise is established. The calculation method of noise current and voltage is described. Then the joint mode and differential mode conduction noise are analyzed. I am modeling as a theoretical basis for subsequent conduction noise extraction and separation. The method of suppressing conducted noise is studied, and the suppression effect of the filter on the noise of the AC output of the high-power transformer cabinet is analyzed, which provides a theoretical basis for the actual engineering rectification.
Highlights
Power machine DM HighElectrical equipmentWith the increasing use of high-power transformer cabinets, there is a more complex electromagnetic compatibility problem
Control interferences will bring a series of problems, such as circuit equipment malfunction, motor rotor heating, communication system collapse, transformer life shell reduction, etc
The question poses a threat to the reliability of itself and other surrounding equipment, and Shield exacerbates the electromagnetic environment pollution problem and high-frequency impact [1-5]
Summary
Abstract- The problem of conducted electromagnetic Generally, the high-frequency noise generated by the interference generated by high-power transformer cabinets is high-power inverter is transmitted through the cable, analyzed. The equivalent model of the high-frequency with common-mode and difference. The calculation method of noise current and voltage is described. I am modeling as a theoretical basis for subsequent mode is propagated out [6-10]. This paper will analyze the conduction noise model and the conducted noise suppression method of a certain type of high-power conduction noise extraction and separation. Suppressing conducted noise is studied, and the suppression effect of the filter on the noise of the AC output of the highpower transformer cabinet is analyzed, which provides a theoretical basis for the actual engineering rectification
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