摘要
针对航天发射低成本、安全可靠运输方式的需要,阐述分析了航天运载器磁悬浮发射概念及其能量供给需求。在重点研究了固体火箭燃料脉冲磁流体发电机的关键技术及发展水平后,基于俄罗斯四台“Sakhalin”脉冲磁流体发电机单元,提出和设计了用于助推发射100吨地面载荷(飞行器和磁悬浮橇体)实现4g加速度的能量供给方案,同时分析磁悬浮发射过程中三相直线电机加速和控制的特点,提出可行的逆变器功率转换系统方案。
With the need for low cost, safe, and reliable ways to get to space, the concept of magnetic launch assist for space fight was described and the power supply requirement was analyzed. After the pivotal technology and current development of solid rocket propellant pulsed MHD generator was emphatically investigated, the power supply scheme for 100ton ground payload （space vehicle and magnetic levitation sled） achieving 4g （gravity） acceleration was proposed and designed based on four “Sakhalin” pulsed MI-ID generator in Russian. By the characteristic analysis of acceleration and control of three phase linear motor used in magnetic launch assist, the feasible inverter conversion system scheme was proposed.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2005年第6期828-832,共5页
Journal of Astronautics
基金
国家863计划资助项目(2003AA722103)
关键词
航天
磁悬浮
脉冲磁流体
能量供给
Space flight
Magnetic levitation
Pulsed MHD
Power supply
