便携式APU数控系统硬件在环仿真平台研究

Portable HIL Simulation Platform for APU Digital Control Systems

摘要:

针对APU控制系统硬件在环仿真平台体积大、重量大,难以满足控制器在外场测试、实验的要求,设计便携式硬件在环仿真设备;普通硬件在环仿真平台,发动机模拟功能和飞控模拟及监控功能分别使用一台工控机;为了实现便携式,综合这两个功能于一台高性能便携式PXI工控机。设计便携式信号调理箱、传感器模拟和执行机构模拟方法组成平台的硬件系统；使用LabWindows/CVI的多线程方法,提高软件实时性,设计平台的软件系统；使用系统辨识法设计APU起动停车模型,使用部件法设计APU稳态工作模型；组成硬件在环仿真平台;便携式仿真平台与电子控制器联合进行APU起动、稳态运行、停车等工作模式的仿真试验,仿真试验结果表明:该平台能够稳定、实时模拟APU工作状态。

Abstract:

As HIL simulation platform for APU Digital Control Systems is bulky and heavy,and difficult to satisfy the controller requirements in outfield test environment,design portable HIL simulation platform.Engine simulation function and flight control simulation and monitoring functions use different computer in a ordinary HIL simulation platform. For portable, using a high-performance portable PXI IPC performs two functions.Designportable signal conditioning boxes, analog sensors and actuators simulation consisting of hardware platform.Use LabWindows / CVI multithreading methods to improve the real-time of software.Use system identification methoddesign APU start-parkmodel,use element-methoddesign steady-state work model.Use the HIL platform to simulation experiment. Experiment results show that the platform has the ability ofthe real-time simulation of theworking mode of APU stably.