作者：王浩浩1，董云云1，孙玉梅1，苏凤1，杨海利2
单位：1.烟台南山学院，山东 烟台 265713；
2.东海热电有限公司，山东烟台 265713
中图分类号：TP277
文献标识码：B
文章编号：1006-883X(2016)01-0039-04
收稿日期：2015-11-29
摘要：设计了一个汽轮发电机在线监测系统，以监测汽轮发电机运行过程中的各种参数。主要硬件包括各种传感器、西门子PLC以及触摸屏等；软件设计中PLC使用STEP7 进行编程，触摸屏使用EB8000编程。PLC和触摸屏相结合，PLC作为控制器，具有模拟量输入、输出功能，能够满足汽轮机的调节和应用；在触摸屏中设定参考值，与实际值进行比较，监测过程中各种参数的变化，对汽轮发电机进行科学的预知和预判，以保证其能够稳定运行。系统优点是能够实时监测各种运行参数和状态，并可直接在触摸屏上显示，如果发生超速或者超温等故障，能直观地发现并发出报警信号。汽轮发电机在线监测系统的应用领域很广，主要在中大型热电厂、水电厂以及各种核电站。
关键词：汽轮发电机；在线监测；可编程控制器；触摸屏
Desigh and analysis of an online monitoring system for turbine generators
WANG Hao-hao1, DONG Yun-yun1, SUN Yu-mei1, SU Feng1, YANG Hai-li2
1.Yantai NanShan University, Yantai 265713, China; 2. LongKou DongHai Thermoelectricity Co.,Ltd, Yantai 265713, China
Abstract: An online monitoring system is designed for monitoring various parameters of turbine generators in this paper, the hardware part of which includes a variety of sensors, PLC and touch screen, and the software part includes PLC programming with STEP7 and touch screen programming with EB8000. The application of system is based on combination of PLC and touch screen. The PLC is used as controller with analog input and output functions and meets the requirements for regulation and application of steam turbine. The touch screen is used to set reference values which are compared with the actual values. Then the changes of various parameters are under monitoring, which is helpful for getting scientific predicting and forecasting to ensure stable operation of turbo generator. The system has advantages of realtime monitoring various operating parameters and states, direct displaying the changes of the parameters on the touch screen, intuitive finding over-speed or over-temperature for sending alarm signals. The on-line monitoring system for turbo generators has very wide applications, especially in large thermal power plants, hydro power plants and various nuclear power stations.
Keywords: turbine generator; online monitor; PLC; touch screen
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备注：2016年 第22卷 第01期