相对传统的电磁型磁悬浮(EMS)列车,永磁电磁混合型磁悬浮(PEMS)列车可以降低功耗、减少发热,还可以实现大气隙悬浮,但存在吸死的可能是目前阻碍其向工程应用发展的最大障碍,提出一种新型永磁电磁混合磁铁结构,使得系统具备冗余性,并通过理论和仿真分析新结构的合理性和有效性,能很好地完成悬浮和吸死防护任务,分析了相应的控制器改造的可行性。
Compared with EMS, the PEMS reduced the suspension power loss on a large scale, released little quantity of heat, and cought realize larger air gap. It was more difficult to control the PEMS, especially the probability of suspension contact prevented it from practical application. In this paper, a new structure of magnet in PEMS was put forward, which made the system redundancy. The theory analysis and simulation showed its rationality and availability, and the new structure cought complete the assignment of suspension and protection against suspension contact well. At last this paper analyzed the workability of the controller.