氢能混合动力飞机引入大量多电设备，导致爬升工况热沉不足而巡航工况热沉冗余的热沉错配问题，无法满足散热需求。本文针对这一热管理问题，通过对干线客机氢能混动分布式热管理系统建模仿真，开展多热沉匹配与调控策略研究。首先，根据分布式热管理系统架构，提出了通过增大储液箱以匹配中间热沉与终端热沉的方案。其次，利用MATLAB-Simulink软件建立了分布式热管理系统仿真模型，分析了中间热沉容量与燃料电池最高温度的关系。最后，设计了启停控制策略以提高热管理系统性能。结果表明，基于多热沉匹配设计的热管理系统方案能使热管理系统满足散热需求，结合调控策略可降低热管理系统最大功率16.7%、飞行剖面能耗55.7%和燃油温度至多4.6℃，并降低系统代偿。

The introduction of a large number of multi-electric devices in hydrogen hybrid airplanes leads to the heat sink mismatch problem of insufficient heat sink in climb condition and redundant heat sink in cruise condition, hard to meet the cooling demands. In this paper, to solve this thermal management problem, the research is carried out on multi-heat sink matching scheme and control strategy by model simulating of the distributed thermal management system of mainline airliner hydro-gen hybrid power system. Firstly, according to the distributed thermal management system architecture, the solution of mid-dle and final heat sink matching by increasing tank capacity is proposed. Secondly, a distributed thermal management system simulation model is established using MATLAB-Simulink software, and the relationship between the tank capacity and the maximum temperature of the fuel cell is analyzed. Finally, the on-off control strategy is designed based on the enlarged tank. The results show that the distributed thermal management system can meet the cooling demands of the hydrogen hybrid power system equipment based on multi-heat sink matching scheme by increasing tank capacity. The on-off control strategy can reduce the maximum power of the thermal management system by 16.7%, the energy consumption during the flight profile by 55.7%, and the fuel temperature by up to 4.6°C, as well as reduce fuel compensation.