针对高速飞行器的热障问题,提出了一种基于Mat1ab的气动加热模拟试验系统方案。系统采用PLC作为控制器,运用Matlab辨识控制系统模型,遗传算法给出PID参数,上位机用WinCC实现实时监测与数据报表生成,WinCC和Matlab之间则通过OPC进行通信。实验结果表明,系统能很好地模拟气动加热环境。 Aiming at the thermal barrier problem of high-speed aircraft, an air-heating simulation test system based on Mat1ab is proposed. The system adopts PLC as the controller, and uses Matlab to identify the control system model. The genetic algorithm gives the PID parameters. The host computer realizes the real-time monitoring and data report generation with WinCC. The communication between WinCC and Matlab is through OPC. The experimental results show that the system can simulate the aerodynamic heating environment well.