Big News! The Company Won the First Prize of 2021 Hunan Technology Invention Award

Date:2023-03-01 Author: Source:

Good News

Won the first prize of Hunan Technology Invention Award

CRRC Times Electric

Feb-24

Hunan Provincial Science and Technology Innovation Award Conference was held in Changsha

The conference presented

2021 Hunan Science and Technology Award

A total of 293 awards (teams and candidates included) were presented

Among them, the project  

"Key Technology and Application of Large Capacity press pack IGBT for Flexible Power Grid" completed by our company

Won the first prize of Hunan Technology Invention Award

As the key core device for achieving a flexible power grid under the "carbon peaking and carbon neutrality" goals, the crimp-type IGBT features high current capacity, short-circuit at failure, double-sided heat dissipation, etc., and can withstand high voltage through a series connection.

The project "Key Technology and Application of Large Capacity press pack IGBT for Flexible Power Grid" proposed the mechanism and method of adaptive pressure equalization between submodule and casing metal boss and managed to overcome the problem of force-thermal-electrical flow equalization in the multi-chip press pack, created the unique design of square ceramic shell seal, high-current crimp type chip and its mechanically enhanced integrated submodule, etc., achieved good electrical interconnection and thermal contact between the parallel chip and the housing, and successfully developed and industrialized 3600A/4500V crimp type IGBT.

Meanwhile, the project has been granted more than 10 invention patents and 1 silver award of China Patent Award, successfully addressed the technical problems of key devices for high-voltage flexible DC power transmission, broke the technology and market monopoly of foreign high-power crimp type IGBT, achieved the leap of 0-1" of crimp type IGBT technology in China, and made the technology in the international leading level.

The crimp type IGBT is the most critical core device in a flexible DC converter valve. Since 2010, CRRC Times Electric has been developing crimp-type IGBTs and has become the key supplier in this field to support the high-end power equipment industry to form core competitiveness and continuously promote the development of core technology in this field.

Till now, the project results of the key technology research of high-capacity press pack IGBT for flexible power grid have been applied and promoted in many landmark power grid projects such as Zhangbei DC network, Wudongde  UHVDC power transmission, and Jiangsu Rudong offshore wind power access, benefiting many fields such as domestic rail transportation, DC transmission and high-end industrial equipment. 

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