一米太阳望远镜风载对伺服系统的影响及控制
The Influence and Control of Wind Loading on the One Meter Solar Telescope Servosystem
查看参考文献16篇
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文摘
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位于云南抚仙湖的一米太阳望远镜,由于其特殊的光机结构和开放式观测模式,位置控制伺服性能受风的影响较大,这要求望远镜伺服驱动系统应有较好的抗干扰能力。本文首先从一米太阳望远镜的光机特性以及结构出发,介绍了该望远镜伺服系统的数学模型及其数值模拟,重点分析了伺服系统中的速度控制器和位置控制器对风载干扰的改善能力。在保证系统稳定性的前提下,通过提高系统增益来加大伺服系统的刚度,可以满足一米太阳望远镜在四级风下正常工作的要求。最后给出该望远镜在实际风载情况下伺服系统的性能和短期跟踪精度的实验结果,该结果表明望远镜伺服系统能满足科学目标及终端仪器对望远镜跟踪精度的要求。 |
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其他语种文摘
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The performance of one meter solar telescope position control servosystem was influenced seriously by wind disturbances,because of its special optic and mechanical structure and open observation mode.Therefore its servosystem was required to achieve good disturbance rejection.At first,the telescope’s optic and mechanical properties were described,and then mathematical model and numerical simulation of its soversystem was presented.Furthermore,the rate and position controllers’ abilities to minimise the effect of wind disturbance were analysed in depth.On the premise of servosystem’s stabilisation,to improve servosystem’s stiffness by increasing servosystem’s gain can meet the demand of the telescope working normally under the condition.of moderate breeze disturbance.In the end,experiment results about servosystem performances and short time tracking accuracy were provided.The results show that the servosystem can achieve the tracking precision required of the telescope’s scientific goals and terminal instruments. |
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来源
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光电工程
,2011,38(6):50-58 【核心库】
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DOI
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10.3969/j.issn.1003-501x.2011.06.009
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关键词
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一米太阳望远镜
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跟踪精度
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伺服系统
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风载干扰
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系统增益
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地址
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中国科学院云南天文台光电实验室, 昆明, 560011
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1003-501X |
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学科
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天文学 |
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基金
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国家973计划
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文献收藏号
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CSCD:4217387
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