Research and development of new high voltage and l

2022-08-21
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The R & D project of high-voltage and high-capacity new power devices for energy efficient conversion has passed the acceptance

recently, the High Tech Department of the Ministry of science and technology organized an acceptance meeting in Suzhou for the "12th Five Year Plan" National 863 plan theme project "R & D and application of high-voltage and high-capacity new power devices for energy efficient conversion". The project consists of four topics, which are jointly completed by XD Group, Zhejiang University, the 55th Institute of China Power Group, Metallurgical Automation Research Institute, Institute of electrical engineering, Chinese Academy of Sciences and other units

after years of research, the project has developed 4500v/100a silicon carbide diodes and 4500V/50a silicon carbide field effect transistors based on independent silicon carbide epitaxial materials, and passed the reliability tests such as high temperature reverse bias, temperature cycle, power cycle, temperature and humidity test; 10kv/200a silicon carbide multichip series power module is developed; 10kv/200a silicon-based IGBT multi chip series power module is developed and applied in the inverter prototype; The static and dynamic parameters of silicon carbide devices and silicon-based IGBT devices are developed "In fact, the digital test platform has a static test capacity of 10kv/800a/300 ° C and a dynamic test capacity of 6.5kv/800a/300 ° C; it has developed a full digital control system for super large capacity power electronic converter, with a speed regulation error of less than 0.008%, a current dynamic response time of less than 9.2ms and a speed dynamic response time of less than 80ms; it has developed an IGCT device power electronic conversion device with a capacity of 21mva/6.9kv, and has completed a demonstration application in AVIC 606 Institute; it has developed MMC converter based on IGBT module, with a capacity of 12.5mva/10kv, and the functional characteristics of anchor fatigue testing machine have been demonstrated and applied in XD Group

as an important layout in the field of third-generation semiconductor power devices in China, this project has broken through a series of key technologies in the field of silicon carbide power devices, packaging and applications, solved the problem of China's high-voltage and large capacity silicon carbide core power devices from "None" to "yes", built China's independent silicon carbide power electronics technology chain, and trained a number of technical backbone talents, It has laid a solid foundation for the establishment of China's independent silicon carbide power electronics industry and social and economic development in important fields such as energy, transportation and manufacturing, and 7. It provides a good guarantee for adjusting the horizontal position of the main engine of the experimental machine with a level ruler

the expert group agreed that the project was completed 3 Limit protection: electronic limit It has become the research content and main assessment indicators specified in the project approval notice, and it is agreed that the project has passed the acceptance

"R & D and application of high-voltage and high-capacity new power devices for energy efficient conversion" broke through a series of key technologies in the field of silicon carbide power devices, packaging and application, solved the problem of China's high-voltage and high-capacity silicon carbide core power devices from "None" to "yes", and built China's independent silicon carbide power electronics technology chain

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