音圈電機(jī)型快速反射鏡的驅(qū)動(dòng)控制系統(tǒng)設(shè)計(jì)
發(fā)布時(shí)間：2019-06-24 16:48
【摘要】：針對(duì)一種兩軸四音圈電機(jī)驅(qū)動(dòng)的快速反射鏡,提出了一種驅(qū)動(dòng)控制方法。該方法為每個(gè)電機(jī)配置一個(gè)高帶寬的電流環(huán),通過(guò)控制電流給定量的符號(hào)和大小,實(shí)現(xiàn)同一軸上兩臺(tái)電機(jī)的同步推挽運(yùn)動(dòng);為了改善系統(tǒng)阻尼,抑制諧振,提高響應(yīng)頻率,基于快速傅里葉變換(FFT)譜分析的方法,精確測(cè)量了快速反射鏡傳遞函數(shù),并引入一個(gè)雙二階型校正函數(shù),對(duì)快速反射鏡的開(kāi)環(huán)響應(yīng)特性進(jìn)行改善。實(shí)際測(cè)試結(jié)果表明:快速反射鏡高達(dá)20 d B的諧振峰得到有效抑制,-3 d B響應(yīng)帶寬由校正前的118 Hz提高到177 Hz,穩(wěn)定時(shí)間由原來(lái)的151 ms降低到3.5 ms,超調(diào)量由原來(lái)的83.3%降低到1.51%,快速反射鏡的動(dòng)態(tài)響應(yīng)得到明顯改善,證明了該方法的有效性。
[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.
【作者單位】： 中國(guó)科學(xué)院長(zhǎng)春光學(xué)精密機(jī)械與物理研究所;
【分類號(hào)】：TH74;TP273
本文編號(hào)：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.
【作者單位】： 中國(guó)科學(xué)院長(zhǎng)春光學(xué)精密機(jī)械與物理研究所;
【分類號(hào)】：TH74;TP273
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，本文編號(hào)：2505215
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