航天器电源系统的动态特性研究  

Analysis on Dynamic Behavior of Spacecraft Power System

作　　者：韩大鹏[1] 税海涛[1] 曾国强[1] 王炎娟[2,3] 

机构地区：[1]国防科技大学航天科学与工程学院,长沙410073 [2]国防科技大学信息系统与管理学院,长沙410073 [3]北京航天飞行控制中心,北京100083

出　　处：《航天器工程》2012年第5期76-80,共5页Spacecraft Engineering

摘　　要：对采用锂离子电池作为供电部件的航天器电源系统进行动态特性研究,以关键的内阻参数为变量建立传递函数,描述用电部件上电时引起的瞬时电流与电压动态变化的关系,对单个用电部件提出阻抗匹配的规则,对多个用电部件的复杂电源系统建立离散仿真模型。以使用无电压调节母线的航天器作为案例研究,仿真结果显示,文章提出的研究方法能够有效反映多个部件上电过程中母线电压的动态特性,可为电源系统的设计提供参考。： The dynamic behavior of spacecraft power system which is powered by lithium-ion bat teries is analyzed. Transfer functions are developed based on the critical resistive parameters to describe the relation between the rush current and dynamic variation of voltage when a power- consuming unit is started. An impendence-match rule is proposed for a single power-consuming unit, and a discrete simulation model is developed for multiple units. A spacecraft with unregu- lated power bus is proposed as an example. Simulation results show that the proposed scheme is effec tive in reflecting the dynamic behavior of the bus voltage during the power-on process of several compo nents, and also effective in providing a proper basis for the design of the power system.

关 键 词：航天器 电源系统 动态特性 

分 类 号：V442[航空宇航科学与技术—飞行器设计]