Direct-current draw-out power supply of IEGT power module

A technology of energy harvesting power supply and power module, applied in the direction of output power conversion device, electrical components, conversion equipment with intermediate conversion to AC, etc., can solve the problems of unrealistic, high cost, technical difficulty, etc., and achieve output capacity Improvement, space saving and cost saving effects

Active Publication Date: 2014-03-26
RONGXIN HUIKO ELECTRIC TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Comparison of the advantages and disadvantages of the above two energy harvesting methods: The advantage of DC energy harvesting is the application in the ultra-high voltage field, such as flexible DC power t...

Method used

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  • Direct-current draw-out power supply of IEGT power module
  • Direct-current draw-out power supply of IEGT power module
  • Direct-current draw-out power supply of IEGT power module

Examples

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Embodiment Construction

[0023] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] See figure 1 , figure 2 , the DC energy harvesting power supply of the IEGT power module. In terms of spatial structure layout, the DC energy harvesting device 1 is located between the IEGT valve string 3 and the power module control board 6. The valve string heat sink 4 is connected, and the IEGT valve string heat sink 4 is located outside the IEGT valve string 3. The IEGT valve string heat sink 4 is connected to the DC capacitor 5 by connecting the busbar 7 and the DC capacitor terminal 8; the DC voltage sampling board and The IEGT drive board 2 is arranged between the DC energy harvesting device 1 and the IEGT valve string 3 .

[0025] See image 3 , Figure 4 , Figure 5 , the main circuit of the DC energy harvesting power supply includes a filter circuit, a non-isolated flyback converter, and an isolated push-pu...

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Abstract

The invention relates to a direct-current draw-out power supply of an IEGT power module in the field of high-power electric and electronic converters. A main circuit comprises a filter circuit, a non-isolated flyback converter and an isolated push-pull converter. After input high-voltage direct-current electric energy is filtered through the filter circuit, first-stage conversion is performed on electric energy signals through the non-isolated flyback converter, bus high voltages are converted into DC400V electric signals, filtering processing is performed on the electric signals, then second-stage conversion processing is performed on the electric signals through the isolated push-pull converter, and finally a high-location draw-out power supply can output DC15V electric signals stably and safely after full-wave rectification is performed on the electric signals through a rectifying circuit (picture 4). The draw-out power supply can output direct-current input voltages within the range of 300Vdc-3700Vdc, and can be cooled naturally, provide electricity for operation of the IEGT power module and run safely and reliably in a complicated electromagnetic field environment.

Description

technical field [0001] The invention relates to a DC energy-taking power supply of an IEGT power module in the field of high-power electric electronic converters. Background technique [0002] The basic unit of a high-power multilevel cascaded converter is a power module, which consists of power modules connected in series. The topology of the power module is basically a DC / AC scheme, that is, to realize the conversion between DC (direct current) and AC (alternating current) energy. Capacitors are usually used for energy storage on the DC side. [0003] The core component of the power module is a high-power fully-controlled transistor, and the commonly used ones include IGBT, IEGT, and StakPak. At present, the domestic market is dominated by IGBT power modules. There is only one supplier for IEGT power modules, and there is currently no supplier for StakPak power modules. [0004] Each power module has its own control device and protection device. These devices all need p...

Claims

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Application Information

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IPC IPC(8): H02M1/00H02M1/44H02M3/28
Inventor 时伟艾锡刚王嘉艺张海涛饶宏黎小林许树楷魏伟侯婷
Owner RONGXIN HUIKO ELECTRIC TECH CO LTD
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