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A Photovoltaic Model Based Method to Monitor Solar Array Degradation On-Board a Microsatellite

机译:基于光伏模型的微卫星机载太阳能电池阵列退化监测方法

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摘要

The lifespan of a microsatellite depends on the adequate power obtained from its solar array. Hence, it is important to monitor the degradation of the solar array in-orbit as uncertain activities of the Sun would change the space radiation environment. To monitor the degradation, a degradation model together with a space environmental model is typically used. In this paper, an alternate method to monitor the solar array degradation of a satellite using a photovoltaic model as a reference is proposed. The proposed method can be used on any satellite with its voltage, current, incidence angle, and temperature of the solar array known. From the results, the proposed method shows that the solar array of X-SAT has a higher rate of degradation from January 2012 to March 2012 due to extreme space weather event. Moreover, the degradation for the Y+and Y-deployable solar panels over the first three years is 28.40% and 41.52%, respectively.
机译:微卫星的寿命取决于从其太阳能电池阵列获得的足够功率。因此,重要的是要监测太阳电池阵列在轨的退化,因为太阳的不确定活动会改变空间辐射环境。为了监视退化,通常将退化模型与空间环境模型一起使用。在本文中,提出了一种以光伏模型为参考来监测卫星太阳电池阵列退化的替代方法。所提出的方法可以在已知其太阳能电池阵列的电压,电流,入射角和温度的任何卫星上使用。从结果来看,所提出的方法表明,由于极端太空天气事件,从2012年1月到2012年3月,X-SAT太阳能电池阵列的降解率更高。此外,Y n + n和Y n - 可部署的太阳能电池板分别为28.40%和41.52%。

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