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首頁> 外文學(xué)位 >Rotor position and vibration control for aerospace flywheel energy storage devices and other vibration based devices.
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Rotor position and vibration control for aerospace flywheel energy storage devices and other vibration based devices.

機譯：航空飛輪儲能裝置和其他基于振動的裝置的轉(zhuǎn)子位置和振動控制。

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Flywheel energy storage has distinct advantages over conventional energy storage methods such as electrochemical batteries. Because the energy density of a flywheel rotor increases quadratically with its speed, the foremost goal in flywheel design is to achieve sustainable high speeds of the rotor. Many issues exist with the flywheel rotor operation at high and varying speeds. A prominent problem is synchronous rotor vibration, which can drastically limit the sustainable rotor speed.;In a set of projects, the novel Active Disturbance Rejection Control (ADRC) is applied to various problems of flywheel rotor operation. These applications include rotor levitation, steady state rotation at high speeds and accelerating operation. Several models such as the lumped mass model and distributed three-mass models have been analyzed. In each of these applications, the ADRC has been extended to cope with disturbance, noise, and control effort optimization; it also has been compared to various industry-standard controllers such as PID and PD/observer, and is proven to be superior. The control performance of the PID controller and the PD/observer currently used at NASA Glenn has been improved by as much as an order of magnitude.;Due to the universality of the second order system, the results obtained in the rotor vibration problem can be straightforwardly extended to other vibrational systems, particularly, the MEMS gyroscope. Potential uses of a new nonlinear controller, which inherits the ease of use of the traditional PID, are also discussed.
機譯：飛輪儲能比傳統(tǒng)的儲能方法（例如電化學(xué)電池）具有明顯的優(yōu)勢。由于飛輪轉(zhuǎn)子的能量密度隨其速度呈二次方增加，因此飛輪設(shè)計的首要目標(biāo)是實現(xiàn)轉(zhuǎn)子的可持續(xù)高速運轉(zhuǎn)。飛輪轉(zhuǎn)子在高速和變化速度下的運行存在許多問題。同步轉(zhuǎn)子振動是一個突出的問題，它會極大地限制可持續(xù)的轉(zhuǎn)子速度。在一系列項目中，新型的主動干擾抑制控制（ADRC）被應(yīng)用于飛輪轉(zhuǎn)子運行的各種問題。這些應(yīng)用包括轉(zhuǎn)子懸浮，高速穩(wěn)態(tài)旋轉(zhuǎn)和加速運行。分析了諸如集總質(zhì)量模型和分布式三質(zhì)量模型之類的幾種模型。在上述每種應(yīng)用中，ADRC均已擴展，以應(yīng)對干擾，噪聲和控制工作量的優(yōu)化。它也已與各種行業(yè)標(biāo)準(zhǔn)控制器（例如PID和PD /觀察器）進(jìn)行了比較，并被證明具有優(yōu)越性。目前NASA Glenn使用的PID控制器和PD /觀測器的控制性能已提高了一個數(shù)量級。由于二階系統(tǒng)的普遍性，轉(zhuǎn)子振動問題獲得的結(jié)果可以直接擴展到其他振動系統(tǒng)，尤其是MEMS陀螺儀。還討論了繼承了傳統(tǒng)PID易用性的新型非線性控制器的潛在用途。

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