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IGBT double-tube parallel power module

A power module, parallel technology, applied in the output power conversion device, the conversion of AC power input to DC power output, electrical components and other directions, can solve problems such as poor reliability, achieve high trigger power, improve service life and reliability, The effect of high isolation voltage level

Inactive Publication Date: 2015-02-04
XIAN YONGDIAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

IGBT and protection at the voltage level of 6500V, although there are mature technologies at home and abroad, the current reliability is poor
The main difficulty is to overcome the high-voltage and high-current IGBT trigger technology. Therefore, it is imminent to design an IGBT trigger device with complete protection functions and high reliability.

Method used

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  • IGBT double-tube parallel power module
  • IGBT double-tube parallel power module
  • IGBT double-tube parallel power module

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Embodiment Construction

[0030] The invention discloses an IGBT double-tube parallel power module, which includes a high-voltage terminal box, a composite grid, several IGBTs arranged in parallel between the high-voltage terminal box and the composite grid, and a low-voltage connector connected to the IGBT. One or more There is an IGBT trigger device between each IGBT and the low-voltage connector, which is used to receive the control signal and isolate and transform the control signal, convert the high-voltage single-phase AC power input by the high-voltage terminal box into DC power, output through the composite busbar, and trigger the IGBT Devices include:

[0031] a first connector for receiving a control signal;

[0032] An isolation transformer for isolating and transforming control signals;

[0033] Optocouplers for transmitting control signals;

[0034] Second connector for outputting control signals.

[0035] Preferably, the module further includes a water-cooled substrate for fixing the h...

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Abstract

The invention discloses an IGBT double-tube parallel power module which comprises a high-voltage terminal box, a composite busbar, a plurality of IGBTs which are parallelly arranged between the high-voltage terminal box and the composite mesh row, and a low-voltage connector which is connected with the IGBT. The IGBT double-tube parallel power module is characterized in that an IGBT triggering device is arranged between one or a plurality of IGBTs and the low-voltage connector for receiving a control signal, performing isolation transformation on the control signal, converting high-voltage single-phase AC power which is input by the high-voltage terminal box to DC power, and outputting through the composite busbar. The IGBT double-tube parallel power module isolates a control power supply from high voltage at the IGBT side and prevents damage of other circuits by high voltage of a main loop. High triggering power is realized. Safety, flexibility and reliability in use of the IGBT are improved.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to an IGBT double-tube parallel power module. Background technique [0002] IGBT (Insulated Gate Bipolar Transistor), an insulated gate bipolar transistor, is a composite fully-controlled voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor), and has a MOSFET The advantages of high input impedance and low conduction voltage drop of GTR. The saturation voltage of GTR is low, the carrying current density is large, but the driving current is large; the driving power of MOSFET is small, the switching speed is fast, but the conduction voltage drop is large, and the current carrying density is small. IGBT combines the advantages of the above two devices, the driving power is small and the saturation voltage is low, its frequency characteristics are between MOSFET and power transistor, and it can work norm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00H02M1/092
CPCH02M7/003H02M1/092
Inventor 张晋芳王博陈嘉明谢鹏
Owner XIAN YONGDIAN ELECTRIC
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