一种具有故障模拟功能的飞轮模拟器设计

摘要

To fulfill the needs in the simulation and test of small satellite attitude and orbit control system, a flywheel simulator with fault simulation function is designed, in addition to normal working state can be simulated, the flywheel simulator can also simulate a variety of fault states. Four TMS320LF2407A chips are adopted as controller to simulate the electrical characteristics of four flywheels, and DSP receives fault command and parameters through RS-485 interface. The simulator has been applied in the simulation and test of small satellite attitude and orbit control system.%针对小卫星姿轨控仿真测试系统需模拟星上真实飞轮的需求,设计并开发了一种具有故障模拟功能的飞轮模拟器,除可以模拟飞轮正常工作状态外,还可以模拟多种飞轮故障状态.本设计采用4片TMAS320LF2407A为核心控制器,实现对4路相互独立飞轮电气特性的模拟,并利用RS485接口实现故障及参数注入,DSP则根据注入的参数对飞轮输出进行调整.飞轮模拟器已应用于小卫星姿轨控仿真测试系统中.