摘要
以往对皮卫星的能量平衡分析,都仅仅建立在仿真的基础上。针对皮卫星的实际情况以及特点,改进了电源系统的仿真建模,建立了分流器件的真实模型,实时计算太阳电池阵、蓄电池和负载的在轨工作参数以及分析实时的电压平衡和能量平衡,得出了真实的能量平衡仿真模型。为了给能量平衡分析提供更加有力的依据,并验证能量平衡仿真,提出了一种基于实物的能量平衡实验方法,并设计出太阳电池模拟器。通过对卫星母线电压、锂离子电池电量的仿真结果和实验结果进行对比,使能量平衡分析得到了验证,也表明浙江大学皮卫星的能量条件可以保证整星的能量平衡。
The analysis of the energy balance of Zheda pico-satellite before was based only on simulations.The power system model was improved based on the practical condition and features of the pico-satellite,The real model of the shunt device was designed.The on-orbit running parameters of the solar array,the battery and the load were calculated in real time,and the real-time voltage balance and energy balance were analyzed,which leaded to the practical simulation model of energy balance.In order to consolidate the analysis of the energy balance and prove the result of the energy balance simulation,a method of energy balance experiment based on the solar emulator was presented.The results of simulation and experiment show that the satellite can attain energy balance under the practical condition.
出处
《传感技术学报》
CAS
CSCD
北大核心
2010年第6期829-833,共5页
Chinese Journal of Sensors and Actuators
基金
十一五预研项目资助(20060103
IDE20060103)
教育部新世纪优秀人才支持计划资助项目(NCET-06-051)
