姿控飞轮电控系统电磁兼容设计

Electromagnetic compatibility design of electronic control system for attitude control flywheel

详细分析了姿控飞轮电控系统的组成及其对其他星载设备产生电磁干扰源的主要原因,提出了在姿控飞轮电控系统电磁兼容性(EMC)设计中减少或抑制电磁干扰的方法。通过EMC测试实验,考察了姿控飞轮系统EMC设计抑制电磁干扰的效果。测试实验结果表明:所提出的EMC设计,CE102传导干扰测试满足标准要求,不同频段具有不同裕量,最大可达26 dBμV;RE102辐射干扰垂直极化测试具有至少7 dBμV/m的裕量,水平极化测试也具有较大裕量。设计通过了星载设备五项敏感度测试。

The composition of the electronic control system of the satellite attitude control flywheel（SACF） and the cause of its electromagnetic interference（EMI） on other satellite-carrying equipments were discussed in detail,and a method to reduce or surpress the EMI in the electromagnetic compatibility（EMC） design of the SACF electronic control system was proposed.The effect of suppressing the EMI through EMC design was investigated by EMC tests.The results show that in the proposed EMC design the CE102 conducted interference test met the standard requirement,and different frequency bands were characterized by different margin,the largest was up to 26 dBμV.The RE102 radiation interference vertical polarization test had 7 dBμV/m margin at least,and the horizontal polarization had a greater margin.The design also passed five sensitivity tests of satellite-carrying equipment successfully.