The invention provides a liquid hydrogen electric drive propulsion system which comprises a liquid hydrogen storage tank, a hydrogen fuel cell stack, an electric power conversion unit, a superconducting motor and an execution element, the hydrogen fuel cell stack is arranged outside the liquid hydrogen storage tank and connected with the liquid hydrogen storage tank through a pipeline, and the liquid hydrogen electric drive propulsion system is characterized in that the electric power conversion unit and the superconducting motor are arranged in the liquid hydrogen storage tank; the electric power conversion unit converts current generated by the hydrogen fuel cell stack and then conveys the current to the superconducting motor, and the output end of the superconducting motor penetrates through the liquid hydrogen storage tank and is in driving connection with the execution element; the power conversion unit and the superconducting motor are directly arranged in the liquid hydrogen storage tank, so that high system integration is realized, the pipeline complexity and leakage risk are reduced, and the reliability and safety of the system are improved; and compared with a high-temperature superconducting motor in the prior art, the superconducting motor arranged in the liquid hydrogen storage tank can make full use of the low-temperature characteristic of liquid hydrogen, the performance of superconducting materials is improved, and then the output power and efficiency of the motor are improved.
本发明提供一种液氢电驱推进系统,其包括液氢储罐、氢燃料电池电堆、电力转换单元、超导电机和执行元件,氢燃料电池电堆设置在液氢储罐外并与液氢储罐管路连接,其特征在于,电力转换单元和超导电机设置在液氢储罐内,以与储罐内的液氢直接进行换热,电力转换单元对氢燃料电池电堆产生的电流进行转换后向超导电机输送,超导电机的输出端穿过液氢储罐与执行元件驱动连接;通过将电力转换单元和超导电机直接设置在液氢储罐内,实现了高度的系统集成,减少了管路复杂性和泄漏风险,提高了系统的可靠性和安全性,并且设置在液氢储罐内的超导电机比现有技术中的高温超导电机更能充分利用液氢的低温特性,提升了超导材料的性能,进而提高了电机的输出功率和效率。
Liquid hydrogen electric drive propelling system
一种液氢电驱推进系统
2024-10-11
Patent
Electronic Resource
Chinese
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