Abstract
In order to solve the problem of hybrid electromagnet lock orbit, we design a new type of AlNiCo-NdFeB hybrid levitation electromagnet. The theoretical analysis has be carried on and mathematical model is established for AlNiCo-NdFeB hybrid levitation electromagnet. Through two dimensional simulation, the electromagnetic characteristics of the suspended electromagnet are analyzed in the 3 typical operating conditions , which are in heavy load at gap 8mm, in full load at gap 16mm and in no-load at gap 3mm. And it’s compared with the traditional electromagnetic magnet and NdFeB hybrid electromagnet. Calculation and analysis show that the new hybrid levitation electromagnet can effectively solve the problems of the electromagnet lock orbit, at the same time, have a good dynamic performance and suspension regulation performance.
Highlights
EMS maglev train suspended on the track in a given gap by the attraction of the electromagnet, with the advantages of small bending radius, strong gradeability, low noise, comfort and safety, etc
Conventional electromagnetic levitation maglev trains provided all electromagnet levitation force, in order to meet the design requirements of bearing capacity, witch need large suspended current, and that lead to the coil current density sharp fever beyond its critical value.Under the condition of full load, the conventional electromagnetic levitation electromagnetic ferromagnetic are unsaturated, saturated
The electromagnetic characteristics of the suspended electromagnet in 3 typical operating conditions are analyzed, which are suspended in heavy load at gap 8mm, full load at gap 16mm, and no load at gap 3mm
Summary
EMS maglev train suspended on the track in a given gap by the attraction of the electromagnet, with the advantages of small bending radius, strong gradeability, low noise, comfort and safety, etc. It gained more and more attention and favor, and it has been hailed as urban internal and inter-city new traffic system in the 21st century [1, 2]. For applied in maglev train, lay the foundation for the appliment of new electromagnetic permanent magnet hybrid levitation electromagnet structure , which have abilities of prevent lock orbit and good dynamic performance, in maglev train
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