应用EHD热管的微小卫星主动热控建模与仿真  

Modeling and Simulation of Micro Satellite Active Thermal Control System Using EHD Heat Pipe

作　　者：李运泽[1] 宁献文[1] 王晓明[1] 石晓波[1] 王浚[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《系统仿真学报》2007年第3期681-682,686,共3页Journal of System Simulation

基　　金：国家自然科学基金资助项目(50506003)

摘　　要：EHD电液驱动热管的传热量可以通过改变其电极间电场强度的方法加以控制,在未来的微小卫星主动热控系统中有着广阔的应用空间,在建立起能够反映这种热控系统受控对象及冷却装置温度变化规律的动态特性模型的基础上,对受控对象内部热源功率发生扰动时EHD主动热控系统的控制效果进行了仿真分析,仿真结果表明:这种新型的EHD热管主动热控措施和经典的PI控制器相结合,可以简便、有效的完成卫星内部电子设备的温度控制任务,文中的动态特性模型为这种新型主动热控系统的设计提供了简便的数学模型。The heat transfer trough EHD （eletrohydrodynamic） heat pipes can be controlled by electric field intensity. In order to study its applying effects in micro satellitethermal control system, dynamical models for the temperature changes of both controlled object and cooling device were built up, the control effects, which use different thermal control strategy, were also simulated and analyzed. The simulation results show that combining the EHD heat pipes and traditional PID control law together can successfully control the temperature change of electronic equipment. The dynamical equations presented here provide a convenient mathematical model for micro satellite＇s EHD thermal control system＇s simulation and design.

关 键 词：微小卫星 EHD热管 主动热控 建模 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程]