Use wechat scan QR code to share with friends and circle of friends < / P > < p > People's daily client Shandong channel Hou linliang 2021-07-20 < / P > < p > speed 600 km / h, China speed On July 20, China's 600 km / h high-speed maglev transportation system officially went offline in Qingdao, Shandong Province < p > in order to master the key technology of high-speed maglev, supported by the key special project of advanced rail transit in the 13th five year national key R & D plan of the Ministry of science and technology, more than 30 universities and colleges in the field of maglev and high-speed railway in China are gathered under the leadership of CRRC Sifang Co., Ltd Scientific research institutes and enterprises have jointly developed a 600 km / h high-speed maglev transportation system. The project started in October 2016, developed a test sample vehicle in 2019, and successfully ran on the test line of Shanghai Tongji University in June 2020. After system optimization, the final technical scheme was determined, and the complete system was developed in January 2021, and the six-month joint commissioning and test started < p > so far, it took five years to tackle the key problems, successfully overcome the key core technology and achieve a major breakthrough. The project independently developed a 5-car high-speed maglev engineering train with a speed of 600 km / h. We have developed a new head type and pneumatic scheme, developed a lightweight and high-strength car body, and mastered the manufacturing technology of key core components. Completed the independent development of high-speed maglev traction power supply system. A high-speed maglev operation control system suitable for automatic tracking operation of long and large trunk lines is established. A new type of track beam is developed. In the aspect of system integration innovation, high-speed maglev can meet the requirements of multi scene application and adapt to complex geographical and climatic environment. At present, the integration and system joint commissioning of the 600 km / h high-speed maglev transportation system have been completed < p > the mature and reliable constant conduction technology is adopted in the high-speed maglev system, whose basic principle is to make the train suspend on the track by using electromagnetic suction to realize contactless operation. It has the technical advantages of high efficiency, safety and reliability, powerful transportation capacity, flexible marshalling, on-time comfort, convenient maintenance, green environmental protection and so on. As a high-speed transportation mode, high-speed maglev can become one of the effective ways of high-speed and high-quality travel, enriching China's comprehensive three-dimensional transportation network. Focusing on engineering industrialization, CRRC Sifang has built a full system simulation and test platform with domestic cooperation units, and built a domestic industrial chain < p > as an international cutting-edge technology, high-speed maglev is a "commanding height" in the world rail transit field and a strategic highland of global transportation technology competition. Many countries have carried out long-term continuous R & D with different technology routes, and built or planned test and operation routes. High speed maglev, as a key frontier technology, has been listed in the outline of China's transportation power construction, and the outline of national comprehensive three-dimensional transportation network planning also proposes to study and promote the layout of high-speed maglev channels and the construction of test lines. With the advent of the 600 km / h high-speed maglev transportation system, China has the conditions to further promote the line test and engineering test demonstration. Through the construction of high-speed test line, the high-speed line test and operation demonstration can lay a solid foundation for the development of high-speed maglev industrialization in China < p > the speed of 600km / h high-speed maglev fills the speed gap between aviation and wheel rail high-speed rail, which can help to form a multi-dimensional transportation framework with perfect, efficient, flexible and convenient gradients of aviation, high-speed rail, high-speed maglev and urban traffic speed, and enrich China's transportation speed pedigree
2023-03-22 10:04:38