Zhai Wanming, academician of Jingjiang, is a member of the expert group of Maglev Project

After nearly three years of technical breakthrough, recently, China has successfully broken through the key core technology of high-speed maglev series. The high-speed maglev test sample vehicle with a speed of 600 km / h is officially offline in Qingdao, which marks a major breakthrough in the field of high-speed maglev technology in China. It is worth Jingjiang's pride that Zhai Wanming, academician of Chinese Academy of Sciences, chief professor of Southwest Jiaotong University, director of Academic Committee of Jingjiang University and famous expert of Railway Engineering Dynamics, participated in the research and development. Zhai Wanming also served as a member of the expert group of this national project.

According to the daily economic news, the fastest operation speed of the high-speed railway is 350 kilometers per hour of the Fuxing. China 's 400 km / h EMUs are also under development. The offline high-speed maglev test sample vehicle has a speed of 600 kilometers per hour. China's high-speed maglev project was launched in July 2016. After nearly three years of technical breakthrough, the research team successfully broke through the key core technology of high-speed maglev series, and made important achievements in the research and development of core subsystems such as vehicle, traction, operation control communication, etc., solving a series of problems such as vehicle lightweight, strength, stiffness, noise, etc. under ultra-high speed conditions, and developing a new light and high-strength one Instead of the car body, a high-precision suspension guide, speed measuring and positioning device and control system have been developed. In addition, a lot of technical innovations have been made in traction system and operation control communication. At present, both traction system and operation control communication system have completed the development of test prototype.

"The high-speed maglev train, which is offline in Qingdao, is a key special subject of the national key R & D plan" advanced rail transit ". Compared with the first commercial operation of Shanghai Maglev Demonstration Operation Line in the world, this project has basically achieved independent control." Zhai Wanming told reporters that his team members participated in the research and development of the whole project, mainly responsible for the power system analysis and research of the project.

Zhai Wanming introduced that the highest operating speed of the high-speed maglev train of Changdao before was 431km / h realized by German technology in the Maglev Demonstration Operation Line of Shanghai, and even the highest test speed was only about 500km / h. In comparison, the speed positioning of the high-speed maglev train offline in Qingdao is ahead of the time, reaching 600 km / h, which is the speed that the constant conduction maglev has not reached before.