Study on Communication Strategy in Triple Module Redundant ETS System

摘要：

A triple module redundant turboset emergent trip system based on triple modular redundancy fault-tolerance technology is discussed in this paper, which is used for safety protection of large steam turbine. The system consists of input modules, main controllers, bus controllers and output modules, in which the 2-out-of-3 (2oo3) vote mechanism is adopted to enhance the reliability and safety of system. In the mean time, the communication strategy among different function modules based on Control Right (CR) is illustrated in detail. It is attested that the asynchronism of input data on three buses in one Control Right rotate cycle has no influence on the system vote results. The system running flow is given through analyzing the system data flow. The field running proves the system reliability.

关键词： Triple Modular Redundancy ETS Control Right

作者: Zou Jianxiao Deng Erqiang Xu Hongbing Wang Houjun

作者单位: School of Automation Engineering,University of Electronic Science and Technology of China,Chengdu 610054 China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）