输电线路自动重合闸对汽轮发电机组轴系机械应力的影响  

Effect of High Speed Reclosing on 600MW Turbine-Generator Shafts at Pinwei Power Plant

作　　者：李永庄 王茂华 

机构地区：[1]电科院系统研究所

出　　处：《电网技术》1989年第2期16-23,共8页Power System Technology

摘　　要：本文研究了平圩电厂600兆瓦汽轮发电机组在系统不同运行方式下,由线路故障及其后的各种成功或不成功的单相和三相重合闸引起的轴系中的扭力矩以及由此引起的疲劳寿命消耗。计算结果表明,三相重合闸会对汽轮发电机组轴系造成较大的损害;而单相重合闸所引起的轴系疲劳寿命消耗数值不大,是允许的。This paper examines the torsional stresses and life expectancy that occur on 600MW turbine-generator shafts of Piagwei power plant due to various reclosing of transmission line after faults in different system operation conditions. Computer simulation results show that triplepole reclosing after three phase faults constitutes such a serious potential hazard for the turbine-generator mechanical integrity, but single-polf reclosing can be used for it does not incur obvious fatigue impact.

关 键 词：输电线路 自动重合闸 汽轮发电机组 

分 类 号：TM762.2[电气工程—电力系统及自动化]