Abstract:This paper researches into the design of the full-scale hybrid magnet in EMS Maglev train. The hybrid magnet was made by combining electromagnet with permanent magnet (PM). Considering the different effects of the positions that PM fixed on, the structure scheme of the hybrid magnet was presented. The analysis result of the hybrid force shows that hybrid magnet can reduce the suspending power as far as the PM has a bigger coercive force. According to the design requirements, the paper also calculated the restriction on the height of the coil's window with its width treated as a constant under the following three typical conditions: rising up at full load, suspending steadily at rated load, and attracting together at zero load. The optimized parameters of the hybrid magnet were thus attained. Finally, based on the FEA (Finite Element Analysis) software, Ansoft Maxwell, the patching up effect of the NdFeB was simulated, and the revised design results were presented.