基于替代模型的单粒子瞬态效应注入

牵引传动控制系统是高速列车的动力关键系统,牵引传动控制单元(TCU)的故障会引发高速列车的动力丧失.电磁辐射环境下的单粒子瞬态效应(SET)是引发TCU故障的主要原因.采用传统物理方法进行的SET测试具有一定的风险和成本,提出一种基于替代模型的SET注入方法.根据双指数模型建立SET注入替代模型,对TCU输出的信号进行SET的注入,解决在系统级虚拟仿真平台上无法对SET进行有效注入的问题,通过试验仿真验证该方法的可行性.为实时故障诊断、隔离和容错技术的研究提供较为真实可靠的故障模拟环境.

Single Event Transient Injection Method Based on Substitution Model

Traction drive control system is the power source of high speed train, the faults of traction control unit cause the loss of power. Single event transient is the main source which causes faults in traction control unit(TCU). Due to the risk and cost of traditional physical testing methods, substitution model based single event transient(SET) method was proposed in this paper. In this method, the SET injection substitution model was built by applying double exponent model to inject the single event transient into the output of TCU. The proposed method could solve the problems that the SET was unavailable to be injected in the virtual simulation platform, and the simulations verified its feasibility. This method could afford a reliable simulation environment for the research on the real time faults diagnosis, faults isolation and tolerant technique.