AGC方式调度运行对水轮发电机组振动影响研究  

Study on vibration of hydroturbine generator unit influenced by AGC mode dispatching and operation

作　　者：任乐鸣[1] 求晓明[1] 钱泱[1] 刘礼华[2] 袁文阳[2] 肖黎[2] 

机构地区：[1]紧水滩水力发电厂,浙江丽水323000 [2]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2002年第3期38-42,共5页Engineering Journal of Wuhan University

摘　　要：结合紧水滩电站水力机组振动检测实例 ,总结了自动发电控制 (AGC)方式调度运行时 ,机组负荷频繁通过水力振动区引起构件振动加强、尾水管压力波动大 ,机组部件产生循环交替应力造成疲劳破坏 .从生产角度 ,提出了重新确定机组调峰起点、提高机组工作部件抗疲劳强度等解决问题的基本方法 ;这些方法简便科学 。By checking and analyzing Jinshuitan hydroturbine generator units' vibration, this paper makes a summary about the influence such as intensified vibration caused by that the units' loads frequently pass through the hydraulic vibration region, fatigue fracture followed as the draught tubes′ pressure fluctuation and cyclic stress increased, which are aroused with the dispatching and operation of AGC mode. From the viewpoint of practical production, this paper brings forward some basic methods to reconfirm the initial point of peak load modulation, to improve units' fatigue resistance and so on. Such methods, which provide with good practical value, are scientific and handy.

关 键 词：自动发电控制方式 水轮发电机组 振动 影响 

分 类 号：TV311.3[水利工程—水工结构工程]