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J4  2009, Vol. 43 Issue (7): 1282-1287    DOI: 10.3785/j.issn.1008-973X.2009.
力学与机械工程     
皮卫星在轨能量平衡仿真研究
金小军,赵翔宇, 辜渝嘉, 金仲和
(浙江大学 信息与电子工程学系,浙江 杭州 310027)
Study on simulation of on-orbit energy balance of pico-satellite
JIN Xiao-jun,ZHAO Xiang-yu,GU Yu-jia,JIN Zhong-he
(Department of Information and Electronics Engineering, Zhejiang University, Hangzhou 310027, China)
 全文: PDF(845 KB)  
摘要:

针对浙江大学皮卫星由于输入能量条件差以及采用非调节母线和体装式结构,使其能量平衡计算相对于传统卫星更加复杂的特点和电源电路的特殊设计,对电源系统进行了建模. 通过实时计算太阳电池、蓄电池和负载的在轨工作参数以及分析实时的电流平衡、电压平衡和能量平衡,最终得到真实的能量平衡仿真模型. 对理想运行条件、实际环境条件和考虑卫星姿态失效的最差条件分别进行了仿真. 结果表明,在理想条件下可以完全保证整星能量平衡;在实际环境下最大平衡功率能忍受实际负载约10%的拉偏;在最差姿态条件下已几乎没有裕量,但能完全保证卫星安全模式下的负载功率能量平衡.

关键词: 皮卫星电源系统能量平衡非调节母线    
Abstract:

Considering that the computation of energy balance of the Zheda pico-satellite is more complex than that of conventional satellites due to its weak input energy and the use of the non-conditioning bus and the body-mounted structure, the power system was modeled based on the features of the pico-satellite and the specific design of the power circuit. The on-orbit running parameters of the solar array, the battery and the load were calculated in real time, and the real-time current balance, voltage balance and energy balance were analyzed, which lead to the practical simulation model of energy balance. Simulations of the ideal condition, the practical condition and the worst condition with the invalidation of the satellite attitude were made respectively. The results showed that the satellite can fully attain energy balance under the ideal condition and can tolerate 10% of the load power under the practical condition. Under the worst condition, the satellite had little margin of energy, but it can fully attain energy balance under the safe mode of the satellite.

Key words: pico-satellite    power subsystem    energy balance    non-conditioning bus
出版日期: 2009-08-01
:  V566  
基金资助:

十一五预研资助项目(20060103,IDE20060103);教育部新世纪优秀人才支持计划资助项目(NCET-06-051).

作者简介: 金小军(1977-),男,浙江上虞人,讲师,主要从事微小卫星及其信号处理方面的研究.
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引用本文:

金小军, 赵翔宇, 辜渝嘉, 等. 皮卫星在轨能量平衡仿真研究[J]. J4, 2009, 43(7): 1282-1287.

JIN Xiao-Jun, DIAO Xiang-Yu, GU Yu-Jia, et al. Study on simulation of on-orbit energy balance of pico-satellite. J4, 2009, 43(7): 1282-1287.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2009.        http://www.zjujournals.com/xueshu/eng/CN/Y2009/V43/I7/1282

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