中低速磁浮列车悬浮控制器电磁兼容设计

Electromagnetic Compatibility Design of Suspension Controller in Medium and Low Speed Maglev

在中低速磁浮列车系统中,悬浮系统是核心子系统。由于列车平稳性和悬浮稳定性的要求,悬浮系统对信号的信噪比要求高,但实际中信号传输距离比较长,所处的电磁环境复杂,干扰强。提出了一种系统方案,从悬浮系统主电路、传感器信号传输、采样和处理机制、分布电源以及系统接地等方面综合设计,系统解决悬浮系统中的电磁干扰问题,提高悬浮系统信号的信噪比。通过实验验证了综合设计方案的可行性以及工程的可靠性。

In the low- speed maglev system, the suspension system is the core subsystem. For the steady of the train and the stability of suspension requirements, high signal- to- noise ratio of the signals is required in the suspension system. But in actual signal transmission, the distance is relatively far, the electromagnetic environment is complex, and the interference is strong.A system design from power circuit, sensor signals transmission, sampling and processing mechanism, distributed power system, system grounding and so on was presented. By these methods the problem of electromagnetic interference is solved in the suspension system and the signal- to- noise ratio is improved in the suspension system. Experiments verify the feasibility of design and the reliability of engineering.