| 利用气动力矩卸载动量轮的策略 |
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| 引用本文： | 张学钢,朱振才,陈宏宇,刘善伍.利用气动力矩卸载动量轮的策略[J].控制与决策,2018,33(9):1708-1712. |
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| 作者姓名： | 张学钢 朱振才 陈宏宇 刘善伍 |
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| 作者单位： | 中国科学院上海微系统与信息技术研究所，上海200050;上海微小卫星工程中心，上海201003;中国科学院大学，北京100049,上海微小卫星工程中心，上海201003;上海科技大学信息学院，上海201010,上海微小卫星工程中心，上海201003;上海科技大学信息学院，上海201010,上海微小卫星工程中心，上海201003 |
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| 摘 要： | 根据环境力矩的特点,针对轨道高度500km以下的一类卫星,提出一种全新的利用气动力矩卸载动量轮的策略,通过对卫星已有机构的功能复用在不增加执行机构的基础上实现卸载,极大地改善了磁力矩器卸载引入的电磁环境与姿态抖动问题.卸载策略既可以独立使用,也可以作为备份与其他卸载方案混合使用,具有重要的工程实践意义.仿真结果表明,卸载策略能够在不影响卫星整体功能的前提下实现动量轮的卸载.
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| 关 键 词： | 气动力矩 空间环境力矩 动量轮卸载 功能复用 |
Strategy for momentum wheels unloading utilizing aerodynamic torque |
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| ZHANG Xue-gang,ZHU Zhen-cai,CHEN Hong-yu and LIU Shan-wu.Strategy for momentum wheels unloading utilizing aerodynamic torque[J].Control and Decision,2018,33(9):1708-1712. |
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| Authors: | ZHANG Xue-gang ZHU Zhen-cai CHEN Hong-yu and LIU Shan-wu |
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| Affiliation: | Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai200050,China;Shanghai Engineering Center for Microsatellites,Shanghai201003,China;University of Chinese Academy of Sciences,Beijing100049,China,Shanghai Engineering Center for Microsatellites,Shanghai201003,China;School of Information Science & Technology,Shanghai Technology University,Shanghai201010,China,Shanghai Engineering Center for Microsatellites,Shanghai201003,China;School of Information Science & Technology,Shanghai Technology University,Shanghai201010,China and Shanghai Engineering Center for Microsatellites,Shanghai201003,China |
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| Abstract: | The paper proposes a novel strategy of unloading momentum wheels utilizing momentum wheels aerodynamic torque for satellites with orbit below 500km, based on the character of the space environment torque. Unloading is completed by multiplexing the existing mechanism without any new mechanism. The electromagnetic interference and attitude tremble introduced by magnetic torquer unloading are reduced greatly. The proposed strategy can be used separately or used with other unloading strategies as backup, which has significant importance in engineering. Simulation results show that the proposed strategy works well without impacting satellite performance. |
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