非接触式汽轮机速度检测系统的设计  

Design of Non-contact Steam Turbine Speed Detection System

作　　者：杜京义[1] 寇水潮[1] 田伟[1] 

机构地区：[1]西安科技大学电气与控制工程学院,西安710054

出　　处：《计算机测量与控制》2015年第9期2968-2969,2973,共3页Computer Measurement &Control

摘　　要：针对目前发电厂汽轮机速度检测需额外安装测速装置的问题,提出了一种基于光纤漫反射的速度检测新方法,并设计了非接触式汽轮机速度检测系统;系统以汽轮机轴钉作为光纤漫反射传感器采样点,利用MSP430F149对所采集的脉冲信号通过变M/T测速算法还原,然后依次完成速度显示、D/A转换和V/I转换,最后将还原的信号远距离传输至DCS集散控制系统;经工业现场调试,本设计方案可行、稳定,具有一定的实用性和推广性。Aiming at the power plant turbine speed detection devices need to install additional speed detector,a speed fiber-based detection of diffuse new methods is proposed,and a turbine speed non-contact detection system is designed.System put turbine shaft nail as sampling point of optical fiber diffuse sensor,using MSP430F149 to revert the sampling pulse signals through variable M/T speed reduction algo-rithm,and then finish speed display,D/A conversion and V/I conversion,finally restored long-distance transmission signal to the DCS distributed control system.Industrial field applications shows that this design scheme is correct and feasible,and it has strong practicability and popularization.

关 键 词：汽轮机速度检测 光纤漫反射传感器 变M/T算法 MSP430F149 D/A转换 V/I转换 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]