中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2021, Vol. 47 ›› Issue (1): 87-92.doi: 10.3969/j.issn.1674-1579.2021.01.012

• 短文 • 上一篇    

一种控制系统故障处理中的互斥设计方法

  

  • 出版日期:2021-02-25 发布日期:2021-03-11
  • 基金资助:
    中国航天科技集团有限公司钱学森青年创新基金“航天控制软件知识图谱构建技术研究”

Mutually Exclusive Design of Control System and Fault Disposal

  • Online:2021-02-25 Published:2021-03-11

摘要: 航天器控制系统中多种故障处理均进行推力器切换操作,而推力器切换操作需要多个控制周期来完成,一旦开始执行应不被打断,否则会导致推力器切换错误.针对在短期内先后触发两种及以上故障时可能导致推力器切换时序冲突和推力器切换错误的情况进行了充分分析.提出了一种软件互斥设计方法,解决多种故障短期内交叉耦合触发引起的推力器切换错误问题.测试结果表明,该方法能使单故障和多故障触发的推力器切换操作正确有效.

关键词: 控制系统, 推力器切换, 故障处理, 交叉耦合, 互斥设计

Abstract: The thruster need to be switched if some kind of fault in spacecraft control system occurs. Spacecraft thruster switching takes multiple software control cycles to complete, so it can’t be interrupted during execution. The sequence conflict and failure of thruster switching due to crosscoupled occurrence of multiple fault disposals are fully analyzed. A software mutually exclusive design method is presented in this paper for thruster switch failure. Simulation results show that this method is feasible.

Key words: control system, thruster switching, fault disposal, crosscoupling, mutually exclusive design

中图分类号: 

  • V249