中文摘要：

为了抑制振动,提高转子旋转精度,提出一种基于振动识别的不平衡补偿控制方法.该方法无需控制对象的传递函数,通过对主动电磁轴承施加试探性补偿信号,同时检测转子位移响应中不平衡振动的幅值和相位变化,直接计算出不平衡振动的Fourier系数,产生精确的补偿电磁力,实现不平衡补偿控制.在控制性能测试的实验中,振动响应的功率谱显示转速频率的振动能量有近30dB的下降.实验结果表明,该方法对不平衡振动的抑制效果是显著的.

英文摘要：

For suppressing vibrations and improving the rotor＇s rotating precision,a novel unbalance compensation method was proposed,which does not need the transfer function of plant model.The proposed method can directly obtain the Fourier coefficients of unbalance vibration and generate the accurate magnetic force to achieve unbalance compensation by injecting a trial signal into the active magnetic bearing（AMB） and meanwhile measuring the variety in magnitude and phase of the rotor＇s displacement response.Finally,in an experiment for testing the algorithm＇s efficiency and precision,approximately 30 dB reduction in unbalance vibrations was obtained in the power spectrum of rotor vibration.The experimental results indicate that the proposed algorithm is effective for suppressing rotor unbalance vibration.