倾斜轨道卫星能量平衡优化分析方法

倾斜轨道卫星的光照条件和外热流变化规律复杂,使得卫星负载功率和输入功率处于复杂动态变化之中,这给卫星能量平衡准确分析带来很大的困难。文章提出一种基于卫星能量动态关联模型的能量平衡优化分析方法,通过合理选择电源工作模式和准确定位卫星最恶劣能量平衡情况,实现电源系统合理配置,优化能量平衡分析流程。以某倾斜轨道卫星的能量平衡优化分析实践为例,应用该方法建立的能源动态关联模型,可以准确确定太阳电池阵输出能力和储能设备容量,减小电源系统质量和尺寸,由此表明该分析合理、可行。

Optimum Analysis Method of Power Balance for Inclined-orbit Satellite

The illumination and space heat flux of an inclined-orbit satellite change complexly, which cause the complex variation of satellite input power and output power, and bring high difficulties in exact analysis of satellite power balance. This paper proposes an optimum analysis method of power balance for inclined-orbit satellite. Through the reasonable choice of power mode and the exact validation of worse state of power balance, a reasonable configuration of electrical power system is achieved and the design process of power balance analysis is optimized. In optimal design of a satellite,a dynamic model based on the method is established which can exactly determine the solar array output power and the battery capacity, and also can reduce the mass and dimension of the electrical power system. The results show that the design method is reasonable and feasible.