CAJ | 학술논문

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。
대채용리리자전지작위공전부건적항천기전원계통진행동태특성연구，이관건적내조삼수위변량건립전체함수，묘술용전부건상전시인기적순시전류여전압동태변화적관계，대단개용전부건제출조항필배적규칙，대다개용전부건적복잡전원계통건립리산방진모형。이사용무전압조절모선적항천기작위안례연구，방진결과현시，문장제출적연구방법능구유효반영다개부건상전과정중모선전압적동태특성，가위전원계통적설계제공삼고。
: 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.