摘要
为了消除太阳电池阵受照发电时电流产生的磁场,利用磁场的矢量特性,以电流环路产生的磁矩相互抵消的原理,进行了太阳电池阵磁洁净度设计。以线电流模拟面电流的简化原理,设计制作了太阳电池阵模拟件;将模拟件作为其中的一段供电导线,搭建了由太阳电池阵模拟器、蓄电池组、电源控制器和电子负载组成的电源系统;在零磁环境下,进行了模拟件磁场强度的测量试验;试验过程中模拟件通过的电流大小按在轨实际的工作模式设置。试验结果表明,模拟件产生的磁场强度与其通过的电流正相关;处在分流状态的子阵不同,模拟件产生的磁场强度变化大小可忽略不计;模拟件通过太阳电池阵在轨的最大电流时,在卫星高精度磁强计位置产生的磁场强度不大于0.011 nT。
The solar array was designed for the magnetic cleanliness with the method that canceling the magnetic moment generated by the current loop, using the vector characteristic of the magnetic field. The physical simulation model of the solar array was made for the magnetic test with the simplified principle that line current simulating surface current. A power system was constructed to supply power for the model during the magnetic test which worked according to the actual working mode of the orbit. The test results show that the magnetic field is positively correlated with the current passed, the difference in magnetic field caused by the difference of the sub-array in the shunt state can be ignored, the magnetic field generated by the array at the sensor location will be less than 0.011 nT under full solar illumination.
作者
张勇
赵颖
刘元默
ZHANG Yong;ZHAO Ying;LIU Yuan-mo(DFH Satellite Co.Ltd.,Beijing 100094,China;Tianjin Institute of Power Sources,Tianjin 300384,China)
出处
《电源技术》
CAS
北大核心
2020年第2期223-226,共4页
Chinese Journal of Power Sources
关键词
太阳电池阵
磁洁净度
电源系统
磁试验
solar array
magnetic cleanliness
power supply system
magnetic test
