运载火箭冗余分级智能供配电技术研究

Study of a Redundant Intelligent Power Distribution Systemfor Launch Vehicle

摘要:

运载火箭供配电系统主要为全箭电气设备提供工作电源。随着技术发展,运载火箭电气系统一体化、智能化要求越来越高,这给运载火箭供配电系统提出更高的要求。针对目前国内运载火箭电磁继电器配电方案状态监测少、智能化程度低、箭地接口复杂等现状,提出了一种运载火箭冗余分级智能供配电方案。该方案以固体功率控制器(SSPC)为核心,采用分布式总线、嵌入式控制、冗余设计、模块化设计技术,实现配电控制、故障隔离、机内自检测(BIT)等功能,简化了箭地接口,以适应未来新一代运载火箭发展需求。通过原理样机测试表明,冗余分级智能供配电方案可以为火箭供配电系统提供更为全面的保护,实现供配电系统的高度自主运行。

Abstract:

The power system provides the power for all electrical equipments on Launch Vehicle (LV). With the LV technology developing, the electrical power system integration and intelligent requirement of LV becomes stronger. For the disadvantages of the traditional power distribution technology for LV with relays, including few fault detection information, non-intelligent, too many lines between LV and ground equipments, a redundant and intelligent power distribution scheme for LV is proposed in this paper. The new scheme applies solid-state power controller (SSPC), distributed Bus, and intelligent data processing, redundant design, modular design, to achieve power distribution, fault isolation, built-in-test (BIT), and make the LV ground interface simple, and fit the requirement of new generation LV in the future. Prototype experiments showed that the scheme can provide all around protection, and realize independent management of power system.