机组轴瓦传感下的水电厂机组全光纤测温自动化系统设计  

Design of All Optical Fiber Temperature Measurement Automation System for Hydropower Units Based on Bearing Bush Sensing

作　　者：莫理 凌培伟 张勇 刘永辉 周屋梁 MO Li;LING Pei-wei;ZHANG Yong;LIU Yong-hui;ZHOU Wu-liang(Western Inspection and Repair Test Branch,Xingyi 562400 China;Guangzhou Jianxin Technology Co.,Ltd.,Guangzhou 516006 China)

机构地区：[1]西部检修试验分公司,贵州兴义562400 [2]广州健新科技有限责任公司(智能工程中心),广东广州516006

出　　处：《自动化技术与应用》2024年第6期98-102,共5页Techniques of Automation and Applications

摘　　要：针对水电厂机组全光纤自动化系统测温误差较大,无法满足水电厂运转需求的问题,提出机组轴瓦传感下的水电厂机组全光纤测温自动化系统。硬件方面,设计温度采集器与温度集中器;软件方面,基于机组轴瓦传感技术,采集水电厂机组温度信息。利用累加平均算法,改善采集数据的信噪比,并通过串联动态实时校正方法,构建测温数据的校正模型,以提升测温精度。在上位机呈现出水电厂机组全光纤测温的实时监控结果。实验测试表明:与其他两种测温系统相比,设计系统将测温误差降低了3.16℃、1.20℃,在实际应用中性能更优。Aiming at the problem of large temperature measurement errors in the all fiber optic automation system of hydroelectric power plant units,which cannot meet the operational needs of hydroelectric power plants,a fully fiber optic temperature measurement automation system for hydroelectric power plant units is proposed under the sensing of unit bearing shells.For hardware,it designs the temperature collector and temperature concentrator,for software,it collects the unit temperature information based on the unit shaft tile sensing technology.Using the cumulative averaging algorithm to improve the signal-to-noise ratio of the collected data,and through the series dynamic real-time correction method,to build a correction model of the temperature measurement data to improve the temperature measurement accuracy.The real-time monitoring results of the power presented.Experimental tests show that compared with the other two temperature measurement systems,the design system reduces the temperature measurement error by 3.16 C and 1.20 C,with better performance in practical applications.

关 键 词：水电厂机组 全光纤测温 自动化 传感器 系统设计 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TP212.111[自动化与计算机技术—控制科学与工程]