The PEMS high speed maglev train, which features a permanent magnet inside an electromagnet, is a new kind of maglev train for long distance intercity transportation. The joint structure, which consists of two single levitation sub‐systems, is the fundamental levitation unit. Two kinds of faults are considered and corresponding fault tolerant control strategies are proposed. The first fault condition is when a gap sensor that is part of a single levitation system is faulty. For this kind of fault, a fault tolerant control strategy based on signal reconfiguration is proposed. The second fault condition is when the whole of a single levitation sub‐system is faulty. Under this condition, a faulty model is firstly established, then a fault tolerant control strategy is designed. When this kind of fault is detected, a switch from the normal controller to the fault tolerant controller can make the faulty system stable.

中文翻译：

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PEMS高速磁悬浮列车联合结构的容错控制

PEMS高速磁悬浮列车在电磁铁内部具有永久磁铁，是一种用于长途城际交通运输的新型磁悬浮列车。联合结构由两个单一的悬浮子系统组成，是基本的悬浮单元。考虑了两种故障，提出了相应的容错控制策略。第一个故障条件是单个悬浮系统中的间隙传感器出现故障时。针对这种故障，提出了一种基于信号重构的容错控制策略。第二个故障条件是单个悬浮子系统的整体出现故障时。在这种情况下，首先建立故障模型，然后设计容错控制策略。当检测到这种故障时，