摘要
磁浮列车的悬浮主电源是一种特殊的大功率开关电源。本文指出悬浮主电源的负载是整车的悬浮控制系统,进而建立了负载的数学模型,分析了悬浮主电源的动静态输出特性,以及电源输出功率激增等现象。研究和仿真结果表明,悬浮主电源的负载阻抗是受悬浮间隙影响而动态变化的,间隙快速变化是造成电源过载保护的直接原因。
The levitation main power supply （LMPS） of maglev vehicle is a special high power DC-DC switching power supply. This paper concludes that the levitation control system is the load of LMPS, and rnodels the load. Further, the stable and dynamic characteristics of the LMPS are studied, and the problem of output power increasing sharply is analyzed. The research and simulation results show that the load impedance of LMPS is varied by the levitation gap, and gap changing fast is the directly reason of overload protection.
出处
《电工技术学报》
EI
CSCD
北大核心
2007年第7期83-86,共4页
Transactions of China Electrotechnical Society
关键词
悬浮主电源
开关电源
建模
磁浮列车
Levitation main power supply, switching power, modeling, maglev vehicle
