IGBT is the core device of inverter, the role is to change DC into AC for motor use, compared with other power electronic devices, IGBT has high reliability, simple drive, easy protection, no buffer circuit and high switching frequency characteristics, in view of this, The development of high voltage, high current and high frequency high voltage IGBT and its application in frequency conversion governor to obtain higher output voltage level device has become the focus of attention.
The research and development of medium-voltage frequency converter is closely related to the development level and application level of power electronic devices such as high-voltage IGBT, GTO, IGCT, etc. With the advent of high-voltage and high-current IGBT, the medium-voltage frequency converter has been injected with new vitality.
To become a power triode, the compressor operation control needs to pass the current is output by it.