大容量火电机组调峰运行对轴系蒸汽振荡的影响分析及对策  

Analysis and Countermeasures of the Impact of Peak Shaving Operation of Large Capacity Thermal Power Units on Steam Oscillation in Shaft System

作　　者：王先权 刘道庆 王德龙 常雪枫 吴仕明 WANG Xianquan;LIU Daoqing;WANG Delong;CHANG Xuefeng;WU Shiming(Huaihe Energy Huainan Panji Power Generation Co.,Ltd.,Huainan,Anhui 232082,China;School of Energy and Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China;Beijing Yinghuada Power Electronic Engineering Technology Co.,Ltd.,Beijing 100086,China)

机构地区：[1]淮河能源淮南潘集发电有限责任公司,安徽淮南232082 [2]华北电力大学能源与动力工程学院,北京102206 [3]北京英华达电力电子工程科技有限公司,北京100086

出　　处：《自动化应用》2024年第20期32-35,共4页Automation Application

摘　　要：随着新能源渗透率的不断提高,传统燃煤机组更多参与深度调峰运行,产生蒸汽振荡故障的可能性增大。针对某台850 MW汽轮发电机组在变负荷运行时发生的蒸汽振荡故障现象,通过采集连续采集振动数据,结合机组蒸汽参数变化情况,分析了蒸汽振荡故障的振动信号特征,总结了针对这一类瞬变故障的监测诊断策略。建议通过对TDM系统的功能升级,强化对蒸汽振荡这类具有瞬变特征的故障的监测诊断功能,配合适当的运行控制措施,降低蒸汽振荡对设备的不利影响,提升机组深度调峰运行的安全可靠性。With the continuous increase in the penetration rate of new energy,traditional coal-fired units are more involved in deep peak shaving operations,increasing the possibility of steam oscillation faults.In response to the steam oscillation fault phenomenon that occurred during variable load operation of an 850 MW steam turbine generator unit,the vibration signal characteristics of the steam oscillation fault were analyzed by continuously collecting vibration data and combining it with the changes in steam parameters of the unit.Monitoring and diagnostic strategies for this type of transient fault were summarized.It is recommended to upgrade the functionality of the TDM system,strengthen the monitoring and diagnostic functions for faults with transient characteristics such as steam oscillation,and cooperate with appropriate operational control measures to reduce the adverse effects of steam oscillation on equipment and improve the safety and reliability of deep peak shaving operation of the unit.

关 键 词：燃煤机组 调峰 蒸汽振荡 振动分析 

分 类 号：TM621[电气工程—电力系统及自动化]