Key words:According to the characteristics of high voltage and high power SAR payloads,the two in-dependent power buses and the requirements of long life and high reliability,the power distribution scheme with hybrid energy distribution and application of fuses and current-limited protection is de-signed.The paper takes GF-3 satellite as an example,establishes a simulation model of satellite power distribution system,analyzed the satellite energy distribution and the influence of bus protection on the ground.The results show that the satellite energy distribution is reasonable and the distribution protection is effective.It can meet the power distribution protection requirements and energy security requirements of SAR satellite,and provides a reference for the design of following SAR satellites.%根据合成孔径雷达(SAR)卫星高压大功率有效载荷用电、双独立母线供电等典型特点及长寿命可靠性要求,设计了混合式能源分配、熔断器与限流保护分类应用的配电方案,以高分三号(GF-3)卫星为例,建立了卫星配电系统的仿真模型,对卫星能源分配、熔断器和限流保护对母线影响进行了仿真分析和地面试验验证,结果表明:卫星能源分配合理,供电保护有效,能够满足SAR载荷卫星的配电保护需求和整星能源安全保护需求,可以为我国后续SAR卫星的配电系统设计提供参考.
展开▼
