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1 professional electric induction melting furnace manufacture,, 2 good service and price., 3 item no.: IGBT-1T-600KW - details see: https://www.machineto.com/0-5ton-igbt-aluminum-induction-melting-furnace-10159141

IGBT frequency power function of every part and principle

1, rectification section: IGBT MF rectifier adopts a controllable silicon controlled switch, only use, i.e. whenever the start device when the rectified voltage to maintain 500V, and not with the power size changes, which can greatly reduce the harmonic generation, reduce the harmonic interference. Rectifier control part is controlled by CPLD, it and IGBT if the motherboard can have four wires are connected, wherein the two as the start of the rectified line, the other two being stopped, protecting the signal line.

2: IGBT, filter MF employing reactor and electrolytic capacitor filter in two ways, reactor can make the continuous current, electrolytic capacitor filter can make the voltage constant, which will ensure that the invert part be a stable voltage source and current source

3, IGBT module inverter section: IGBT if the half-bridge inverter, inverter, IGBT module, it is by the German company production, this module is a positive temperature coefficient modules, i.e. when the temperature rises its on-state impedance will increase, which is beneficial to the uniform flow

4, IGBT module drive: drive part adopts the German production of supporting the drive plate, driving ability, perfect protection function, at the same time driving a plurality of block IGBT module, with over current, over voltage protection functions such as. High performance driving plate is a reliable operation of equipment guarantee.

5, drive power: driving power supply using isolated power module, the driving power of " ground " and the external power supply is isolated. This can avoid the external disturbance, is conducive to the reliable operation of the equipment

6, the main control board has the following functions: pulse synthesis function, frequency tracking, synchronous protection, overcurrent limiting function, temperature and pressure of the water protection function.