The 600-kilometer-per-hour high-speed maglev "Uncovered Head" in Qingdao will be the fastest mode of transportation within 1,500 kilometers.

　　Facilitating the integration of cities, it can be called an artifact of "bringing the group to break the circle"

　　On July 20, the 600 km/h high-speed maglev transportation system with completely independent intellectual property rights was successfully rolled off the assembly line in Qingdao. This is the world's first high-speed maglev transportation system designed to reach 600 km/h, marking that my country has mastered the complete set of high-speed maglev technologies and Engineering ability.

It is understood that the total length of the head of the high-speed maglev train is 16 meters, and the non-contact levitation, driving and guidance between the train and the track is realized through electromagnetic force.

Since the maglev train is suspended in the air, it does not need to touch the track when traveling, and its resistance comes only from the air, which can achieve higher speed operation.

　　Qilu Evening News Qilu One Point

　　Reporter Zhao Bo, correspondent Deng Wangqiang

　　Officially offline after 5 years of research

　　Break through a number of technical difficulties

　　In order to master the key technology of high-speed maglev, with the support of the "13th Five-Year" National Key Research and Development Program of the Ministry of Science and Technology, the Advanced Rail Transit Key Special Project, organized by CRRC and led by CRRC Sifang Co., Ltd., brings together more than 30 domestic maglev and high-speed rail fields. Universities, research institutes and enterprises "production, study, research and application" jointly launched the development of a high-speed maglev transportation system with a speed of 600 kilometers per hour.

　　The project was launched in October 2016, a test prototype was developed in 2019, and it was successfully tested on the test line of Tongji University in Shanghai in June 2020. After system optimization, the final technical plan was determined, and a complete system was developed in January 2021. And started a six-month joint debugging and joint test.

　　So far, after 5 years of research, the 600km/h high-speed maglev transportation system was officially launched, successfully conquering key core technologies, and the system solved the problems of speed improvement, complex environment adaptability, and core system localization, and realized system integration, vehicles, and traction. Major breakthroughs in complete sets of engineering technologies such as power supply, operation control communications, and line tracks.

　　The project independently developed my country's first 5 marshalled high-speed maglev engineered trains with a speed of 600 kilometers per hour, and also developed a new head type and aerodynamic solution to solve the aerodynamic problems under ultra-high-speed conditions.

The high-speed maglev transportation system adopts advanced laser hybrid welding and carbon fiber technology to develop a lightweight and high-strength car body that meets the requirements of ultra-high-speed air-tight load-bearing.

In addition, the high-speed maglev transportation system independently developed levitation guidance and speed measurement positioning devices, and the control accuracy reached the international leading level.

Break through the key manufacturing process and master the manufacturing technology of key core components such as suspension frame, electromagnet and controller.

　　The high-speed maglev transportation system has overcome key technologies such as high-power IGCT traction converter and high-precision synchronous traction control, and completed the independent development of the high-speed maglev traction power supply system.

It has mastered key technologies such as ultra-low delay transmission of vehicle-to-ground communication under high-speed conditions, and zoned handover control, and has innovated and established a high-speed maglev control system suitable for automatic tracking and operation of long-distance trunk lines.

A new high-precision track beam that satisfies the high-speed and smooth running of trains has been developed.

　　In terms of system integration, the high-speed maglev transportation system has also been innovated, breaking through the technical bottleneck of application scenarios and adaptability to complex environments, so that high-speed maglev can meet the needs of long-distance, commuting and multi-scenario applications, and adapt to complex geographic and climatic environments such as river tunnels, high cold, high temperature and high humidity. .

　　System security protection

　　Meet the highest level requirements

　　According to Ding Sansan, chief technical engineer of the high-speed maglev project and deputy chief engineer of CRRC Sifang Co., Ltd., the high-speed maglev off the assembly line is the world's first high-speed maglev transportation system with a speed of 600 kilometers per hour.

Adopting mature and reliable normal guidance technology, the basic principle is to use electromagnetic suction to make the train levitate on the track to achieve non-contact operation. It has high efficiency, fast, safe and reliable, strong transportation capacity, flexible marshalling, punctual comfort, convenient maintenance, green environmental protection and other technologies. Advantage.

　　The high-speed maglev with a speed of 600 kilometers per hour is the fastest ground vehicle currently achievable.

Calculated according to the actual travel time "door-to-door", it is the fastest mode of transportation within a distance of 1,500 kilometers.

The high-speed maglev transportation system adopts the operation structure of "car-holding track", which is safe and reliable.

The traction power supply system is arranged on the ground, and the power is supplied in sections according to the position of the train. Only one train runs in the adjacent section, and there is basically no risk of rear-end collision.

Realize GOA3 level fully automatic operation, and the system safety protection meets the highest safety level requirement of SIL4.

　　The train is spacious and comfortable.

A single section can carry more than one hundred passengers, and can be flexibly grouped in the range of 2 to 10 vehicles to meet the needs of different passenger capacity.

There is no contact with the track during driving, no wheel or rail wear, less maintenance, long overhaul period, and good economy throughout the life cycle.

　　At present, the demand for high-speed travel by business passenger flow, tourist flow and commuter passenger flow brought about by my country's economic development is increasing.

As a useful supplement to high-speed transportation, high-speed maglev can meet diversified travel needs and promote the coordinated development of regional economic integration.

　　Propulsion circuit test already available

　　And engineering demonstration conditions

　　It is understood that many countries have used different technical routes to carry out long-term continuous research and development of high-speed maglev, and built or planned test and operation routes.

High-speed maglev, as a key cutting-edge technology, has been included in my country’s "Outline for the Construction of a Powerful Transportation Country", and the "Outline of the 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 routes.

　　"After nearly 20 years of continuous research and technology accumulation, China has basically realized the independent research and development capabilities of the entire system of high-speed maglev transportation, formed a complete set of engineering technologies, and realized independent and controllable industrial supporting capabilities. China's high-speed maglev has moved from the R&D stage. Entering the high-speed test stage, it will gradually transition to the stage of demonstration operation and industrialization. The successful roll-off of the high-speed maglev transportation system with a speed of 600 kilometers per hour indicates that the conditions for advancing line testing and engineering demonstration are already available." He Huawu, Vice President of the Chinese Academy of Engineering Said that through the construction of high-speed test lines, comprehensive high-speed maglev tests and the accumulation of demonstration operation technology, it can lay a solid foundation for the continuous innovation and industrialization of China's high-speed maglev.

　　It is reported that many places in my country have proposed plans to build high-speed maglev railways.

In March 2021, the Beijing-Shanghai high-speed maglev entered the Ministry of Transport's 2021 transportation strategic planning policy project plan.

In 2020, the "Provincial Comprehensive Three-dimensional Transportation Network Plan" issued by Zhejiang Province for comments on the Shanghai-Hangzhou Maglev and other projects puts forward the Shanghai-Hangzhou Maglev project. The total investment of the Shanghai-Hangzhou Maglev is estimated to be about 86 billion yuan, and the design speed is 600 km/h.

In 2020, Yunnan Province plans to build a new Kunming-Lijiang high-speed railway, which will adopt the high-speed maglev system.

According to CRRC's previous plan, a high-speed maglev test railway will be built in Shandong.

　　The 600 kilometers per hour high-speed maglev fills the speed gap between aviation and wheel-rail high-speed rail, and can help form a multi-dimensional, efficient, flexible and convenient multi-dimensional transportation structure with complete, efficient, flexible and convenient speed gradients for aviation, high-speed rail, high-speed maglev, and urban traffic.

Its application scenarios are rich, and it can be used for long-distance transportation, that is, "corridorized" transportation, forming high-speed corridors between large-scale hub cities or urban agglomerations, and promoting coordinated development between regions; it is also suitable for short- and medium-distance passenger transportation, that is, "commuting" "Same-city" transportation is used for commuting in big cities or inter-city connections between neighboring cities in urban agglomerations, creating a half-hour to one-hour economic circle, and promoting the "integration" and "same-city" development of metropolitan areas and urban agglomerations .