某生物质发电厂汽轮机组振动值大幅跳变原因及对策  

Analysis of the Causes and Countermeasures of the Vibration Value Jump of the Turbine Unit in a Biomass Power Plant

作　　者：吴成年 顾涤枫 查瑞 WU Chengnian;GU Difeng;ZHA Rui(Zhongdian Huachuang(Suzhou)Electricity Technology Research Co.,Ltd.,Suzhou,Jiangsu 215123,China;Wuhu Power Generation Co.,Ltd.,Wuhu,Anhui 241009,China)

机构地区：[1]中电华创(苏州)电力技术研究有限公司,江苏苏州215123 [2]芜湖发电有限责任公司,安徽芜湖241009

出　　处：《山西电力》2022年第4期40-43,共4页Shanxi Electric Power

摘　　要：某生物质发电机组在停机检修期间,进行汽轮机主汽门活动性电磁阀及严密性电磁阀试验过程中出现监视系统振动测量信号振动值大幅异常波动的现象,通过分析测量通道中各环节相关因素,逐步验证造成振动值错误跳变的原因有两方面,一是信号线缆与交流电源线缆同层平行敷设,二是该系统对干扰抑制能力不足。针对振动值错误跳变,给出了解决方法,取得了良好的效果。During downtime maintenance of a biomass generator set,the vibration measurement signal of the TSI(Turbine Supervisory Instruments)system vibrated sharply during the test process of active solenoid valve and tight solenoid valve of the main valve ofsteam turbine.Based on an analysis of the relevant factors in each link in the measurement channel,it is gradually verified that there are two reasons for the false jump of vibration value:firstly,the signal cables and the AC power cables are laid in parallel on the same layer;secondly,this system has insufficient interference suppression capabilities.Finally,a solution is put forward for the false jump of vibration value and good results are achieved.

关 键 词：汽轮机监视系统 振动测量 信号干扰 

分 类 号：TM621[电气工程—电力系统及自动化]