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First commercial maglev 3.0 train

On the High Speed Maglev Test Line of Tongji University

Related tests completed

On March 10, Zhou Qinghe, deputy to the National People's Congress, Secretary of the Party committee and chairman of CRRC, disclosed the above news.

The commercial maglev train adopts the "diamond" cutting appearance with strong industrial sense, strong visual impact, Chinese red coating, and enthusiasm.

The train is designed at a speed of 200 kilometers per hour, which fully absorbs the technical advantages of commercial maglev 1.0 and 2.0 trains. A number of technologies have achieved new breakthroughs and filled the international gap. It is a new commercial maglev product created by Chinese researchers.

Compared with commercial maglev 1.0 and 2.0 trains, what are the technical highlights of commercial 3.0 maglev trains?

The commercial maglev 3.0 train innovatively adopts the 5G high frequency millimeter wave wireless communication technology with good anti-interference and fast transmission efficiency, and realizes fully automatic unmanned driving through ground operation. Technologies such as online condition monitoring and big data analysis can realize self-prediction and self-diagnosis of multi-system faults such as vehicles, tracks, power supply, and operation control, thereby ensuring the safety and reliability of fully automated driving.

The commercial maglev 3.0 train is driven by a medium-speed maglev long stator synchronous linear motor. The traction motor, known as the "heart" of the train, is "moved" from the bottom of the body to the ground, breaking through the limitation of traditional rail transit traction equipment installed on the train. The train is further lightweight, acceleration and deceleration, and the average travel speed is greatly expanded. Compared with commercial maglev 2.0 trains, its traction efficiency is improved by 20%, climbing ability is improved by 30%, and acceleration time is shortened by more than 50%.

Unlike commercial maglev 1.0 and 2.0 trains, commercial maglev 3.0 trains are the world's first to use on-board linear motor induction power supply, which can transmit induction power supply wirelessly at low speed and at rest, completely eliminating the resistance and noise of current receiving, realizing completely contactless current receiving "land flight" and improving ride comfort.

On the basis of the rail-holding operation technology, the commercial maglev 3.0 train is equipped with an active guidance control system with adaptive function. Compared with the commercial maglev 2.0 train, its curve passing speed is increased by more than 15%, and its cross wind resistance is improved by at least 2 levels.

In addition, coupled with the unique advantages of maglev transportation system, such as low noise, low vibration, strong climbing ability and small turning radius, commercial maglev 3.0 trains can realize high density, small grouping, public transportation, fast start and stop operation, and effectively reduce the system construction cost and life cycle maintenance cost, and the project cost will be greatly reduced compared with the existing domestic high-speed maglev lines.

Yang Ying, a scientist at CRRC, said that the transportation technology of commercial maglev 3.0 trains has reached the stage of engineering and commercialization. It is suitable for intercity and urban lines with a distance of 50km to 200km. It has the advantages of small land occupation and flexible route selection. At present, my country is accelerating the construction of urban metropolitan areas and urban railways. The commercial maglev 3.0 train market prospects will be very broad, and it is one of the best options for intercity and urban "green intelligent" transportation. In the future, through technical upgrades such as air tightness improvement, further optimization of aerodynamic shape, and increased ground traction power, commercial maglev 3.0 trains can also meet the needs of high-speed operation.

Zhou Qinghe said that the successful development of the commercial maglev 3.0 train is an important measure to implement the strategic positioning and mission of the "three highs and four new", to create a source of original technology for rail transit equipment, and to undertake the Hunan Provincial Party Committee and Provincial Government to "make Hunan maglev bigger and stronger." Industry "major mission. At present, China has mastered the system integration technology and key core technology of commercial maglev train, has different types of maglev train development platforms, and has cultivated the whole industrial chain of maglev transportation system. The level of maglev technology and industrial development remain in the forefront of the world.

Background information

As a pioneer in the development and promotion of commercial maglev trains in China, CRRC has successively developed commercial maglev 1.0 trains, 2.0 trains and 3.0 trains, completing the process of speeding up China's maglev traffic from 100 km/h to 200 km/h, from short stator linear motor drive to long stator linear motor drive.

The commercial maglev 1.0 train has a design speed of 100 kilometers per hour and is suitable for urban areas and tourist attractions. It has been operating safely on the Changsha Maglev Express for more than five years, carrying more than 15 million passengers. This year, the maglev 1.0 train will also be in operation in Hunan Phoenix Scenic Area, which will become another beautiful scenery line in the ancient city.

The commercial maglev 2.0 train, with a design speed of 160 kilometers per hour, is the fastest short stator (technical route) maglev train in the world, suitable for central cities to satellite cities, and has been put into operation on Changsha Maglev Express Line.

The commercial maglev 3.0 train has a design speed of 200 kilometers per hour. It is driven by a long stator linear motor, and uses new technologies and new materials such as fully automatic unmanned driving and composite car bodies. It is suitable for urban and intercity lines, and has a higher operating speed. ability.

In July 2016, the key technology research topic of medium-speed maglev transportation system and the key technology research topic of high-speed maglev transportation system passed the "13th Five-Year" key science and technology project of the Ministry of Science and Technology. The commercial maglev 3.0 project is led by CRRC Zhuji Co., Ltd., adopting the model of "politics, production, learning, research, and use", and organizes joint research and development by more than 20 domestic scientific research, enterprises and institutions. It is an advanced intelligent rail transit system that integrates modern information, control technology and traditional electromechanical technology. It can drive the development of Hunan's 100 billion rail transit industry cluster and my country's entire rail transit industry, and has a significant impact on the future technological development of rail transit and national technological innovation. Leading and demonstrating role, so that my country's maglev technology level and industrial development remain at the forefront of the world.