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悬浮控制是磁悬浮列车的核心技术,其他子系统必须在稳定悬浮的基础上设计。为了降低悬浮的能量损耗,采用超导线材绕制电磁铁的方法,在分析电磁型磁悬浮列车悬浮系统结构特性的基础上,建立了超导单铁悬浮系统的数学模型,并设计了带有电流环的线性二次型最优控制器,通过仿真计算表明,该控制策略不仅能够实现快速、精确、稳定的悬浮,还可以大大降低悬浮功率,达到设计的目的。
Suspension control is the core technology of maglev train, other subsystems must be designed on the basis of stable suspension. In order to reduce the energy loss of suspension, the method of winding electromagnet with superconducting wire was adopted. Based on the analysis of the structural characteristics of the suspension system of electromagnetic type maglev train, a mathematical model of the suspension system of superconducting single iron was set up. Loop linear quadratic optimal controller, the simulation results show that this control strategy not only can achieve fast, accurate and stable suspension, but also can greatly reduce the floating power, to achieve the purpose of design.