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The self-excited vibration problems of maglev vehicle-bridge interaction system were addressed, which greatly degrades the stability of the levitation control, decreases the ride comfort, and restricts the cost of the whole system. Firstly, the coupled model containing the quintessential parts was built, and the mechanism of self-excited vibration was explained in terms of energy transmission from levitation system to bridge. Then, the influences of the parameters of the widely used integral-type proportion and derivation(PD) controller and the delay of signals on the stability of the interaction system were analyzed. The result shows that the integral-type PD control is a nonoptimal approach to solve the self-excited vibration completely. Furthermore, the differential-type PD controller can guarantee the passivity of levitation system at full band. However, the differentiation of levitation gap should be filtered by a low-pass filter due to noise of gap differentiation. The analysis indicates that a well tuned low-pass filter can still keep the coupled system stable. 相似文献
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磁浮交通轨排耦合自激振动分析及自适应控制方法 总被引:1,自引:0,他引:1
本文针对中低速磁浮交通的轨排自激振动问题, 首先建立了包括轨枕、导轨在内的多跨磁浮轨排动力学模型, 通过理论方法分析轨排的模态振型、频率等关键参数. 其次, 建立了包含一体化电磁铁的悬浮模块的动力学模型, 并与轨排模型结合建立轨排 ? 悬浮模块耦合模型, 分析了耦合系统失稳发生自激振动的原因. 提出了一种带辨识器的自适应振动控制方法, 能够实时辨识轨排的主要动力学参数, 并由此产生自适应振动控制律.相比现有的轨排振动控制方法, 该方法具有更好的稳定性和环境适应性. 相似文献
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一种基于TMS320LF2407A DSP的便携式CAN总线监控终端及在基于CAN总线的 悬浮控制器的监控中的应用,详细介绍了这种监控终端的硬件和软件实现。 相似文献
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