载人航天器放电调节器稳定性研究

电源系统的稳定性是保证载人航天器在轨飞行可靠安全的要素之一。文章研究了应用混合型功率调节技术的电源系统放电调节器的建模方法,获得了系统开环传递函数,进行了仿真验证,在此基础上分析了影响放电调节器稳定性的因素,表明系统中存在过大的延迟会使系统的稳定性大幅降低甚至造成不稳定,地面试验结果验证了此结论的正确性。

Stability Study on Manned Spacecraft Battery Discharge Regulator

The stability of power system is one of the factors that can guarantee safety and relia- bility of manned spacecraft on orbit. This paper studies the battery discharge regulator, obtained open-loop transfer function and conducted simulation verification. On this basis, the paper analy- zes factors that affect the stability of BDR~ this analysis showed that too long delay could de- crease the stability of the system and even cause instability. This conclusion has been proved cor- rect by the ground test results.