See 24th IF power supply drawing analysis technology innovation
The 24-pulse intermediate frequency power supply is used as the power supply for the intermediate frequency furnace. The 24-pulse thyristor intermediate frequency power supply is formed by four sets of three-phase rectification to form an equivalent 24-pulse rectification, so that the low-order harmonic generated by the 24-pulse intermediate frequency power supply is cancelled on the high-voltage side, and the lowest harmonic The wave starts from 23 times. According to the harmonic analysis, the higher the harmonic frequency, the lower the component, and the harmonic influence generated by the 24-pulse rectified power supply is much smaller than the 6-pulse KGPS intermediate frequency power supply and the 12-pulse intermediate frequency power supply.
Under the new energy-saving and low-carbon environmental protection trend, the large-tonnage 20-ton intermediate frequency furnace adopts 24-pulse intermediate frequency power supply, which is a new type of energy-saving low-carbon consumption-consuming intermediate frequency power supply, which greatly reduces the harmonic interference of the power grid, and has high power density and melting. The speed is fast and the thermal efficiency is high, so that it can achieve the purpose of reducing investment cost, reducing consumption, increasing production capacity and creating benefits for enterprises, and can better exert its advantages in the smelting of large furnaces.
Provides a rectified source with no 5th and 7th harmonic components for the load. It realizes the output of 0~1150V continuously adjustable DC voltage. The inverter uses ordinary parallel resonance or series resonant load. The schematic diagram is uploaded for your reference analysis.
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