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对EDS&EMS混合型磁浮系统的稳定裕度进行分析。基于混悬系统的动力学模型,利用常规的PD控制算法进行控制器设计,以此来确定控制参数的选择域范围。在相同控制参数的情况下,分析并比较了常规EMS系统和EDS&EMS混悬系统的相位裕度,得出在一定的范围内混悬系统的相位裕度远大于常规EMS系统。分析及实验结果表明,在同样的控制器作用下,相比于纯粹的EMS,EDS&EMS系统的稳定性能更好,抗干扰能力更强。
The stability margin of the EDS & EMS hybrid maglev system is analyzed. Based on the dynamics model of the suspension system, the conventional PD control algorithm is used to design the controller to determine the selection range of control parameters. Under the same control parameters, the phase margin of the conventional EMS system and the EDS & EMS suspension system is analyzed and compared. It is concluded that the phase margin of the suspension system is far greater than that of the conventional EMS system in a certain range. Analysis and experimental results show that under the same controller, EDS & EMS system has better stability and stronger anti-interference ability than pure EMS.