A 45-m-long high-temperature superconducting (HTS) Maglev ring test line, named as "Super-Maglev", has been successfully developed in Chengdu, China in February, 2013, 12 years after the birth of the first man-loading HTS maglev test vehicle. The maglev vehicle (2.2 m in length, 1.1 m in width) is designed for one passenger with a levitation height of 10-20 mm; the permanent magnet guideway (PMG) (45 m in length, 0.77 m of track gauge) is a racetrack shape with a curve radius of 6 m; the driving is accomplished by a linear induction motor with a maximum running speed of 50 km/h. The linear motor is composed of four sub-motors installed at one straight section in the middle of the double PMGs and the total length is 3 m. Thissecond-generation HTS Maglev vehicle system is highlighted by the cost-performance and the wireless multi-parameter onboard monitoring function. The current same-level load capability has been achieved over a small-section low-cost PMG whose cross sectional area is only 3000 mm 2 . On the vehicle, parameters of levitation weight, levitation height, running speed, acceleration, lateral offset, online position and total running distance of the vehicle are real-time monitored and displayed on the onboard tablet computer. The system component and test data are reported in detail in the paper.
There is universal agreement between the United Nations and governments from the richest to the poorest nations that humanity faces unprecedented global challenges relating to sustainable energy, clean water, low-emission transportation, coping with climate change and natural disasters, and reclaiming use of land. We have invited researchers from a range of eclectic research areas to provide a Roadmap of how superconducting technologies could address these major challenges confronting humanity.Superconductivity has, over the century since its discovery by Kamerlingh Onnes in 1911, promised to provide solutions to many challenges. So far, most superconducting technologies are esoteric systems that are used in laboratories and hospitals. Large science projects have long appreciated the ability of superconductivity to efficiently create high magnetic fields that are otherwise very costly to achieve with ordinary materials. The most successful applications outside of large science are high-field magnets for magnetic resonance imaging, laboratory
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