音圈电机型快速反射镜的驱动控制系统设计
发布时间：2019-06-24 16:48
【摘要】：针对一种两轴四音圈电机驱动的快速反射镜,提出了一种驱动控制方法。该方法为每个电机配置一个高带宽的电流环,通过控制电流给定量的符号和大小,实现同一轴上两台电机的同步推挽运动;为了改善系统阻尼,抑制谐振,提高响应频率,基于快速傅里叶变换(FFT)谱分析的方法,精确测量了快速反射镜传递函数,并引入一个双二阶型校正函数,对快速反射镜的开环响应特性进行改善。实际测试结果表明:快速反射镜高达20 d B的谐振峰得到有效抑制,-3 d B响应带宽由校正前的118 Hz提高到177 Hz,稳定时间由原来的151 ms降低到3.5 ms,超调量由原来的83.3%降低到1.51%,快速反射镜的动态响应得到明显改善,证明了该方法的有效性。
[Abstract]:The invention provides a driving control method for a fast reflecting mirror driven by a two-axis four-tone ring motor. in the method, a high-bandwidth current loop is arranged for each motor, the synchronous push-pull motion of two motors on the same axis is realized by controlling the current to the quantitative symbols and the size, Based on the fast Fourier transform (FFT) spectrum analysis method, the transfer function of the fast mirror is measured accurately, and a double-order type correction function is introduced to improve the open-loop response of the fast reflector. the actual test results show that the resonant peak of the fast reflecting mirror up to 20 d B is effectively suppressed, the response bandwidth of the-3d B is increased from 118 Hz before the correction to 177 Hz, the settling time is reduced from 151ms to 3.5 ms, and the overshoot is reduced from 83.3% to 1.51%, The dynamic response of the rapid reflector is obviously improved, and the effectiveness of the method is proved.
【作者单位】： 中国科学院长春光学精密机械与物理研究所;
【分类号】：TH74;TP273
本文编号：2505215
[Abstract]:The invention provides a driving control method for a fast reflecting mirror driven by a two-axis four-tone ring motor. in the method, a high-bandwidth current loop is arranged for each motor, the synchronous push-pull motion of two motors on the same axis is realized by controlling the current to the quantitative symbols and the size, Based on the fast Fourier transform (FFT) spectrum analysis method, the transfer function of the fast mirror is measured accurately, and a double-order type correction function is introduced to improve the open-loop response of the fast reflector. the actual test results show that the resonant peak of the fast reflecting mirror up to 20 d B is effectively suppressed, the response bandwidth of the-3d B is increased from 118 Hz before the correction to 177 Hz, the settling time is reduced from 151ms to 3.5 ms, and the overshoot is reduced from 83.3% to 1.51%, The dynamic response of the rapid reflector is obviously improved, and the effectiveness of the method is proved.
【作者单位】： 中国科学院长春光学精密机械与物理研究所;
【分类号】：TH74;TP273
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