Insulated gate bipolar transistor (IGBT) module unit for flexible direct current transmission

A flexible direct current transmission and modular unit technology, which is applied in the direction of electrical components, output power conversion devices, cooling/ventilation/heating transformation, etc., can solve problems such as complex installation structures, reduce installation parts, improve heat dissipation environment, simplify The effect of installing the crimping structure

Active Publication Date: 2015-11-04
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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  • Insulated gate bipolar transistor (IGBT) module unit for flexible direct current transmission
  • Insulated gate bipolar transistor (IGBT) module unit for flexible direct current transmission
  • Insulated gate bipolar transistor (IGBT) module unit for flexible direct current transmission

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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 insulated gate bipolar transistor (IGBT) module unit for flexible direct current transmission. The IGBT module unit comprises an installation framework, wherein a submodule press connection unit is fixedly arranged at the front part of the installation framework and comprises an intermediate framework and two installation end plates, the intermediate framework extends along a left-right direction, the two installation end plates are fixedly arranged at the left end and the right end of the intermediate framework and are fixedly arranged on the installation framework, at least two submodules and inter-module insulation baffle plates are sequentially arranged on the intermediate framework at intervals along the left-right direction, two clamping devices are arranged on the two installation end plates and used for clamping and positioning the submodules and the inter-module insulation baffle plates on the left-right direction in a matching way, each submodule comprises an IGBT and a thyristors, and a capacitor is fixedly arranged at the rear part of the installation framework and electrically connected with the submodule in one-to-one correspondence. By the IGBT module unit, each submodule forms a serial press connection structure and is clamped and positioned by the two clamping devices arranged on the two installation end plates, installation parts are reduced, and a submodule installation press connection structure is effectively simplified.

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 Applications(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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