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igbt module unit for flexible direct current transmission

A flexible DC power transmission, modular unit technology, applied in electrical components, output power conversion devices, cooling/ventilation/heating renovation, etc., can solve the problems of complex installation structure, reduce installation parts, extend service life, simplify The effect of installing the crimp structure

Active Publication Date: 2017-12-26
XJ ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an IGBT module unit for flexible direct current transmission, in order to solve the technical problem of the relatively complex single-module plug-in installation structure existing in the prior art

Method used

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  • igbt module unit for flexible direct current transmission
  • igbt module unit for flexible direct current transmission
  • igbt module unit for flexible direct current transmission

Examples

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Embodiment Construction

[0023] Such as Figure 1 to Figure 5 As shown, an embodiment of an IGBT module unit for flexible direct current transmission, the IGBT module unit in this embodiment includes a mounting frame 1, and a sub-module crimping unit 4 is fixed on the front of the mounting frame 1, and the sub-module crimping unit A plurality of sub-modules 40 are crimped on the 4, capacitors 3 that are electrically connected to each sub-module are fixed at the rear of the installation frame 1, and a capacitor 3 is installed above the sub-modules 40 at the front of the installation frame 1. There are support slide rails 7 extending along the left and right directions, and the loop control boxes 2 are movably mounted on the support slide rails 7 and electrically connected to each sub-module and each capacitor in one-to-one correspondence.

[0024] Such as image 3 As shown, the installation frame 1 includes two supporting beams 11 arranged at intervals along the left and right directions, parallel arr...

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Abstract

The invention provides an IGBT module unit for flexible direct current transmission, which includes a mounting frame, a sub-module crimping unit is fixed on the front of the mounting frame, and the sub-module crimping unit includes a middle frame extending along the left and right direction and a Two installation end plates at the left and right ends, the two installation end plates are fixed on the installation frame, and at least two sub-modules and insulation blocks between the modules are installed on the middle frame in sequence along the left and right directions, and the two installation end plates are provided with for Cooperate with two clamping devices for clamping and positioning the sub-module and the insulating stopper between the modules in the left and right directions. Each sub-module includes an IGBT and a thyristor respectively. The rear part of the installation frame is fixed with a One corresponds to the capacitance of the electrical connection. Each sub-module forms a serial crimping structure, and each sub-module is clamped and positioned by two clamping devices arranged on two installation end plates, thereby reducing installation parts and effectively simplifying the installation and crimping structure of the sub-modules.

Description

technical field [0001] The invention relates to an IGBT module unit for flexible direct current transmission. Background technique [0002] Flexible DC transmission technology is a new type of DC transmission technology based on voltage source converters, turn-off devices and pulse width modulation technology. Compared with the traditional current-source DC transmission technology based on thyristors, the flexible DC transmission technology uses a fully-controlled power electronic device IGBT, which has fast system response, good controllability, flexible operation mode, and can reduce the short-circuit capacity of the system. Improve power quality. It has obvious advantages in renewable energy grid connection, distributed generation grid connection, island power supply, urban power grid power supply, etc. [0003] The existing domestic and foreign flexible DC transmission converter valve sub-modules mostly adopt a single-module independent plug-in structure, and the IGBTs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20
Inventor 吴红艳李华君张承杜玉格谢云龙任成才吴伟伟程君凤
Owner XJ ELECTRIC
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