北京航空航天大学学报 ›› 2004, Vol. 30 ›› Issue (09): 868-871.

• 论文 • 上一篇    下一篇

基于PLC的动态系统故障诊断与 带故障运行方法

高淑敏, 费玉华   

  1. 北京航空航天大学 自动化科学与电气工程学院, 北京 100083
  • 收稿日期:2003-09-24 出版日期:2004-09-30 发布日期:2010-09-21
  • 作者简介:高淑敏(1978-),女,河北唐山人,硕士生, shumingao@163.net.

Research on fault diagnosis and running with fault method in dynamic system based on PLC

Gao Shumin, Fei Yuhua   

  1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2003-09-24 Online:2004-09-30 Published:2010-09-21

摘要: 介绍了基于PLC(Programmable Logical Controller)的动态控制系统的故障诊断的基本原理、实现方法.为提高控制系统的可靠性,提出了一种基于梯形图软件设计利用信号输出模块屏蔽故障点实现故障检测与容错处理功能,使系统能够带故障运行的方法,并以实例说明了这种方法在避免和减少这些故障对系统影响方面是重要而且可行的.

Abstract: The fundamental and means of realization of fault diagnosis was introduced, which can be applied in the dynamic system controlled by PLC controller. In order to improve the reliability of the control system, one method that is realized by programming the ladder diagram to make use of the output module to shield the exception points was presented, which can realize fault detection and tolerance control function in the running process of the dynamic control system and can be even enable the system to run with fault. The applied instance illustrated that the method is very feasible in avoiding or reducing the fault effect on system.

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