A high-voltage and high-power igbt driver based on digital control

Abstract

The invention relates to the field of insulated gate bipolar translator (IGBT) driver design, in particular to a high-voltage high-power IGBT driver based on digital control. The IGBT driver comprises a drive main control panel and a drive adaptive panel. The drive main control panel is connected with three output terminals of the drive adaptive panel through high-voltage insulation guide lines. The drive adaptive panel is fixedly connected with a collector, a grid and an emitter of an IGBT through screws, and the drive main control panel is connected with the collector of the drive adaptive panel mounted on the IGBT through a single high-voltage guide line. The drive main control panel is connected with the grid and the emitter of the drive adaptive panel mounted on the IGBT through double-twisted high-voltage guide lines. The drive main control panel has a function of changing single power input to driving double power output, and the drive adaptive panel has functions of grid protection and active clamp. The high-voltage high-power IGBT driver based on digital control has the advantages of being safe and reliable, and through the digitally controlled IGBT driver, is simple and intelligent in control, and capable of controlling the specific process of switch-on or switch-off of the IGBT, and has unique advantages.

Description

technical field [0001] The invention relates to the field of IGBT driver design, in particular to a high-voltage and high-power IGBT driver based on digital control. Background technique [0002] With the development of modular multi-level flexible DC transmission technology and the development of turn-off devices, the power and voltage levels of IGBT turn-off devices used in converter valve sub-modules are getting higher and higher, so the gate drive conditions It is also getting higher and higher, and the reliable turn-on and turn-off characteristics and short-circuit protection function put forward higher requirements for the design of high-power IGBT drivers. Existing IGBT drivers are basically composed of simple analog circuits, which can only perform overall simple control on the turn-on and turn-off process of the IGBT, and cannot intelligently control the specific process of turn-on or turn-off, such as dynamically changing the turn-on resistance the size of. There...

AI Technical Summary

Problems solved by technology

Existing IGBT drivers are basically composed of simple analog circuits, which can only perform overall simple control on the turn-on and turn-off process of the IGBT, and cannot intelligently control the specific process of turn-on or turn-off, such as dynamically changing the turn-on resistance the size of

Therefore, the traditional analog control-based IGBT driver can no longer meet the needs of high-power IGBT, and the digital control IGBT driver has simple and intelligent control, and can control the specific process of IGBT turn-on or turn-off through programming, which has unique advantages.

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