一种卫星半实物模拟训练等效器的设计与实现

Design and Implementation of Satellite Hardware-in-the-loopSimulation Training Equivalent

由于在实装上进行卫星地面测试的日常训练可能会造成设备的严重损耗,不能用真实卫星作为日常训练对象;通过分析大量卫星的供配电特性,设计半实物供配电设备模拟器,用其代替真实部件引入闭环回路,实现卫星内部供配电分系统的实物等效;以计算机为核心实现数据采集及数据处理系统,并可实时接收遥控指令、模拟生成遥测数据,配合地面测试系统响应测试流程;硬件实物仿真设计了数据采集、信号产生等硬件板卡,实现配电等效、指令等效、测量等效的功能;模拟器整体设计以PXI总线为接口,满足了系统的模块化及通用化设计,可方便实现其他模拟器的组合及扩展;经过现场运行表明及用户实际测试表明,该设备可完全替代卫星供配电分系统实现卫星电气性能模拟,有效配合地面测试人员的日常训练。

Because the daily training of satellite ground test on real installation may cause serious loss of equipment,real satellite cannot be used as the daily training object.By analyzing the power supply and distribution characteristics of a large number of satellites,a semi physical power supply and distribution equipment simulator is designed to replace the real components and introduce a closed-loop,so as to achieve the physical equivalent of the internal power supply and distribution subsystem of satellites.The data acquisition and data processing system is realized with the computer as the core,and it can receive remote control instructions in real time,generate telemetry data by simulation,and cooperate with the response test process of the ground test system.Hardware physical simulation design consists of data acquisition,signal generation and other hardware cards,to achieve the distribution equivalent,command equivalent,measurement equivalent functions.The overall design of the simulator takes PXI bus as the interface,which meets the modular and general design of the system,and can facilitate the combination and expansion of other simulators.The field operation and user test show that the equipment can completely replace the satellite power supply and distribution subsystem to realize the simulation of satellite electrical performance and effectively cooperate with the daily training of ground testers.