China's high-speed rail core energy chip successfully made: the world's highest degree of difficulty
As the country with the longest mileage in operation in the world, China's high-speed railway is said to have occupied the first of eight in the world. In the context of domestic disease and accelerated foreign output, the degree of autonomy can only continue to increase.
According to Science and Technology Daily reported this week, the highest-grade domestic 6500V high-speed rail "China core" came out by China's auto Wing Chi Motor Corporation to create an independent. The birth of this "China core" means that China has the world's highest voltage level IGBT module design and manufacturing technology, and to the commercial application level.
Each 6500V / 200AIGBT module is made up of eight "finger-sized" chips, but this slightly larger IGBT module is one of the most magical components in high-speed trains and high-powered locomotives and has a direct impact Whether the high-speed rail train can start an instant, whether speeding comfortably, whether the stable parking.
High-voltage high-power 6500V / 200AIGBT module, the use of welding technology, the bonding process, made of domestic IGBT chip and FRD chip multi-chip parallel, complete the "China core" 6500V / 200AIGBT integrated modular package design, an alternative to foreign Similar products used in the subway and railway locomotive converter. At present, the IGBT module has completed three phases of power unit, auxiliary converter cabinet and locomotive loading. Among them, the locomotive loading on-line operation of more than 50,000 kilometers.
High-speed trains and high-power locomotives almost represent the world's most difficult electric power conversion, high-speed trains and high-power locomotives IGBT research and development capabilities, is to measure the level of rail transport equipment manufacturing a fundamental symbol. The realization of "IGBT chip - IGBT module - traction drive system," the entire chain autonomy, master three high-speed rail train core components of the traction system is the dream of rail transit equipment companies.
The birth of the domestic 6500V / 200AIGBT module has laid the foundation for ending the "hollowing out" of China's high-speed railway. It marks our country has completely independent intellectual property rights of the world's highest voltage level of IGBT module design and manufacturing technology, and to the commercial application level, is replacing foreign similar products in our country subway and railway locomotive converter "core" Position and enhance the competitiveness of China's equipment manufacturing industry in its "going global" strategy. At the same time, it promotes the "Made in China 2025" while promoting the formation and improvement of China's high-voltage high-power IGBT chip design-manufacturing-packaging-testing-application industry chain.
High-voltage IGBT is not only used in high-speed rail, rail transit, smart grid, wind power and other fields, can improve electricity efficiency and electricity quality, saving more than 30%.
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