KMS of Xinjiang Astronomical Observatory, CAS
| 一种大型天线抗风扰自适应补偿方法 | |
| Alternative Title | Anti-wind self-adaptive compensation method for large antenna |
| 黄进; 张洁; 范建宇; 宋瑞雪; 邱丽丽 | |
| 2013-10-21 | |
| Patent Number | ZL 201310497248.9 |
| Copyright Date | 2016-06-08 |
| Rights Holder | 西安电子科技大学 |
| Country | 中国 |
| Subtype | 发明 |
| Status | 授权 |
| Application Number | CN201310497248.9 |
| Open (Notice) Number | CN103558758A |
| Date Available | 2014-02-05 |
| Abstract | 本发明涉及一种大型天线抗风扰自适应补偿方法，其特征是至少包括：步骤101：建立天线位置处较为准确的随机风载荷模型；步骤102：建立面向控制的包含天线柔性信息的模型；步骤103：通过对所建风模型和天线模型进行仿真，得出天线柔性振荡信息，并计算指向误差；步骤104：根据卡尔曼滤波方式，对该指向误差进行一步预测，预测时间为电机的惯性时间常数与滤波器的惯性时间常数之和；步骤105：设计低通滤波器，并求得天线模型和电机减速器模型的传递函数，对预测值进行反推计算，求得前馈控制信号；步骤106：将所得前馈控制电压前馈给控制系统，使被控模型产生刚性转角抵消由于柔性振荡带来的指向误差。该方法提高了天线的指向精度、天线电性能和工作效率。 |
| Other Abstract | The invention relates to an anti-wind self-adaptive compensation method for a large antenna. The anti-wind self-adaptive compensation method for the large antenna is characterized by at least including the first step of establishing an accurate random wind load model at the position of the antenna, the second step of establishing a control-oriented model containing flexible information of the antenna, the third step of carrying out simulation on the established wind model and an antenna model, obtaining the flexible oscillation information of the antenna and calculating pointing errors, the fourth step of further predicting the pointing errors according to the Kalman filtering mode, wherein the prediction time equals the sum of an inertia time constant of a motor and an inertia time constant of a filter, the fifth step of designing a low-pass filter, solving a transfer function of the antenna model and a motor reducer model, and carrying out backstepping calculation on a predicted value to obtain a feedforward control signal, and the sixth step of feeding forward feedforward control voltage to a control system so as to enable the controlled model to produce a rigid rotation angle to offset the pointing errors caused by flexible oscillation. Through the method, pointing accuracy, electrical performance and work efficiency of the antenna are improved. |
| Classification | G05B13/04 ; G05D3/12 |
| Language | 中文 |
| Patent Agent | 西安吉盛专利代理有限责任公司 61108 |
| Document Type | 专利 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1513 |
| Collection | 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题2：复杂环境下天线结构保型与高精度指向控制 |
| Affiliation | 西安电子科技大学 |
| Recommended Citation GB/T 7714 | 黄进,张洁,范建宇,等. 一种大型天线抗风扰自适应补偿方法. ZL 201310497248.9[P]. 2013-10-21. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2013104972489.pdf（3402KB） | 专利 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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