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Converter valve component used for flexible DC power transmission and IGBT submodules thereof

A flexible DC transmission and sub-module technology, applied in the direction of electrical components, electrical solid devices, circuits, etc., can solve problems such as complex installation structures, and achieve the effects of improving reliability, improving heat dissipation environment, and improving stability

Active Publication Date: 2015-10-28
XJ ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an IGBT sub-module to solve the technical problem of a relatively complicated single-module plug-in installation structure in the prior art; at the same time, the present invention also provides a flexible DC power converter using the above-mentioned IGBT sub-module valve assembly

Method used

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  • Converter valve component used for flexible DC power transmission and IGBT submodules thereof
  • Converter valve component used for flexible DC power transmission and IGBT submodules thereof
  • Converter valve component used for flexible DC power transmission and IGBT submodules thereof

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Embodiment Construction

[0031] Such as figure 1 Shown, a kind of embodiment of IGBT submodule, the submodule in this embodiment includes 2 IGBT198, 3 radiators and 1 thyristor 199, and 3 radiators are right radiator 191, middle radiator 192 and The radiator 193 on the left side, 2 IGBTs and 3 radiators are arranged at intervals along the left and right directions, one thyristor 199 is arranged outside the radiator 191 on the right side, and the veneers corresponding to the 2 IGBTs are fixedly mounted on the radiator On the corresponding side of the radiator, the thyristor 199 is fixedly installed on the outer surface of the right radiator 191 with a corresponding veneer, and the right side of the thyristor 199 is provided with a conductive aluminum bar for cooperating with the right radiator 191 to clamp the thyristor 199. 190. Wherein, a resistor 194 is fixedly mounted on the left side radiator 193 . Moreover, sub-module control circuits 195 are also fixedly installed on the three radiators.

[0...

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Abstract

The invention provides a converter valve component used for flexible DC power transmission and IGBT submodules thereof. The converter valve component comprises an installing framework. A submodule crimping unit is fixedly arranged at the front part of the installing framework. The submodule crimping unit comprises an intermediate framework and two end plates. The intermediate framework is provided with at least two submodules and inter-module insulating stop blocks which are arranged in a spacing way along a left-and-right direction in turn. The two end plates are provided with two clamping devices. Each submodule comprises two IGBTs, three heat radiators and one thyristor. The two IBGTs and the three heat radiators are arranged in turn along the left-and-right direction in a mutual spacing way. One thyristor is arranged at the external side of the rightmost heat radiator. The corresponding fitting surface of the thyristor is fixedly installed at the external side surface of the rightmost heat radiator. The right side of the thyristor is provided with a conductive aluminum bar which is used for being matched with the rightmost heat radiator so as to clamp the thyristor. Multiple submodules can be connected in series and crimped via the two clamping devices in the submodule crimping unit so that the crimping and fixing structure of the submodules in the overall converter valve component can be effectively simplified.

Description

technical field [0001] The invention relates to a converter valve assembly for flexible direct current transmission and an IGBT sub-module thereof. 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 indepe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/18H01L23/34H01L23/495
Inventor 朱新华张承李华君李申王艳毛志云王健云于丽阳
Owner XJ ELECTRIC
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